Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

3151 results about "Double row" patented technology

Method of forming knotless double row construct with graft or patch fixed under repair site

Systems and methods for soft tissue to bone repairs, without knot tying. The soft tissue repair includes the steps of (i) providing a medial row formed of a plurality of medial anchors, the medial anchors comprising suture or tape attached to each of the bodies of the medial anchors, the suture or tape forming a loop when the medial anchors are placed within tissue; (ii) passing traction sutures through each of the corresponding loop of the nearest medial anchor; (iii) passing through the tissue (rotator cuff) the free limbs of the suture or tape attached to each of the medial anchors, and one end of the traction suture (passed through the corresponding loop) at their respective points; (iv) bringing the other end of the traction suture (through a lateral cannula) underneath the tissue (the rotator cuff) and then securing the passed end of the traction suture to a graft or patch located underneath the tissue (rotator cuff); and (v) adjusting the position of the graft or patch by pulling end of the traction suture passed through the tissue (rotator cuff).
Owner:ARTHREX

Flexible modular building framework

A building framework includes metal columns (e.g., tubular or I-beam), wood-product beams, and bracket connectors for joining the beams to the columns to form a building joint of sufficient strength and durability for buildings suitable for human occupation. First mechanical fasteners (such as bolts and nuts) secure a selected connector to the column, and second mechanical fasteners (such as lag bolts) secure a selected beam to the connector. The columns include double rows of holes. A plurality of different connectors with differently angled flanges are provided, such that beams can be connected at a wide variety of different angles. Further, the system allows columns and / or beams to be cut at the construction site, or at a building supply company. Thus, basic building components can be inventoried in a manner not previously possible, yet the system supports a wide variety of different building frames for on-site customization and adaptability.
Owner:PORTER WILLIAM H

Wheel supporting bearing assembly and method for producing the same

A construction is adopted in which an annular spacer 27 is held between first and second inner races 2a, 2b. An internal clearance in a double-row bearing unit is measured in a middle step of assembling work of a wheel supporting bearing assembly, and in the event that a resultant measured value does not become a proper value, an axial dimension of the spacer 27 is adjusted, so that the internal clearance becomes the proper value. Thereafter, the assembling work is made to continue until the assembling work is completed. A problem which is to be solved by the invention is solved in the way described above.
Owner:NSK LTD

Hybrid power vehicle double electric machine double row planetary gear single clutch drive apparatus

The invention discloses a twin-motor two-planet-row and single clutch driving device of a hybrid vehicle in the technical field of machinery. The device is provided with a front planet row and a back planet row; the front planet row is provided with a front planet row planet wheel and a front planet row sun gear; the back planet row is provided with a back planet row planet wheel and a back planet row sun gear; the front planet row and the back planet row share a gear ring. The output shaft of an engine is connected with the input end of an integrated starter generator; the output end of the integrated starter generator is connected with the driving disk of the clutch; the driven disk of the clutch is connected with the planet wheel of the front planet row through a planet carrier; the sun gear of the front planet row is connected with a drive motor; the planet carrier of the planet wheel of the back planet row is arranged fixedly on a car frame; the sun gear of the back planet row is also connected with the drive motor; the outside gear of the gear ring is normally engaged with a power take-off gear. The twin-motor two-planet-row and single clutch driving device of the hybrid vehicle has the advantages of compact structure, large transmission ratio, large load support capability, stable driving, and high transmission efficiency, thereby realizing power dividing and infinite variable speed at the same time.
Owner:SHANGHAI JIAO TONG UNIV

Method for double row fixation of tendon to bone

A system and method for soft tissue to bone repair employing at least one suture anchor combined with at least one knotless fixation device. The method for soft tissue to bone fixation includes: (i) providing a first medial row constructed with a first plurality of fixation devices, at least one of the first plurality of fixation devices is an anchor; and (ii) providing a second lateral row constructed with a second plurality of fixation devices, at least one of the second plurality of fixation devices is a knotless fixation device, and suture or tape or allograft / biological component extending over the soft tissue and secured in place by the anchors in the first and second medial rows.
Owner:ARTHREX

Early suppression fast response fire protection sprinkler

An early suppression fast response pendent-type fire protection sprinkler is suitable for use in accordance with one or more of NFPA 13, NFPA 231 and NFPA 231C to protect single row rack storage, double row rack storage and multiple row rack storage, the sprinkler having a K-factor of about 25 and flowing pressure of about 15 pounds per square inch. Preferably, the sprinkler has a body defining an orifice and an outlet for delivering a flow of fluid from a source, and a deflector mounted with a first surface opposed to flow of fluid from the outlet. The deflector defines at least one pair of generally opposed reentrant slots extending from the first surface through the deflector, the reentrant slots extending from slot openings at an outer peripheral edge of the deflector inwardly from the peripheral edge toward a deflector axis.
Owner:TYCO FIRE PRODS LP

Method for creating knotless double row construct with medial row closure

Systems and methods for soft tissue to bone repairs, without knot tying. The soft tissue repair includes the steps of (i) securing first and second knotless fixation devices in bone, wherein the first fixation device is provided with a first loop and a first set of tails extending therefrom, and wherein the second fixation device is provided with a second loop and a second set of tails extending therefrom; (ii) passing one tail of the first fixation device through the second loop of the second fixation device; (iii) passing one tail of the second fixation device through the first loop of the first fixation device; and (iv) securing the first set of tails with a third fixation device and the second set of tails with a fourth fixation device.
Owner:ARTHREX

Double row construct with medial row closure

Systems and methods for soft tissue to bone repairs, without knot tying. The soft tissue repair includes the steps of (i) securing first and second knotless fixation devices in bone, wherein the first fixation device is provided with a first loop and a first set of tails extending therefrom, and wherein the second fixation device is provided with a second loop and a second set of tails extending therefrom; (ii) passing one tail of the first fixation device through the second loop of the second fixation device; (iii) passing one tail of the second fixation device through the first loop of the first fixation device; and (iv) securing the first set of tails with a third fixation device and the second set of tails with a fourth fixation device.
Owner:ARTHREX

Aircraft joint

A method of joining a wing to an aircraft fuselage by forming a series of pinned lug joints between a fuselage side and a wing side of a wing box structure. The joint forming process includes providing a single row of lugs on one side of the joint to be formed, and providing a respective double row of lugs on the other side of the joint to be formed. A gap between opposing lugs of the double row varies along the row. The wing side and the fuselage side of the wing box structure are brought together such that the lugs of the single row are located within the respective gaps between opposing lugs of the double row, and the lugs are pinned to form the series of pinned lug joints. Also, a joint formed by the method.
Owner:AIRBUS OPERATIONS LTD

Corn-seed image carefully-choosing apparatus and usage method for apparatus

InactiveCN104084379AGuaranteed accuracyContinuous and even double row feedingSortingMachine visionImage detection
The invention relates to the technical field of visual inspection by using a machine, and concretely relates to an corn-seed image carefully-choosing apparatus and a usage method for the apparatus. The technical scheme is characterized in that the a practical efficient on-line carefully-choosing image detection algorithm for corn seeds is provided; a corn-seed turning-over mechanism is designed, which is capable of performing image detection determination on the front side and the reverse side of a corn seed and helps to guarantee accuracy of a detection result; an electromechanical sorting execution mechanism with simple structure is designed; and a novel double-row feeding mechanism is designed, which is capable of continuously uniformly performing double-row feeding on corn seeds. The corn-seed image carefully-choosing apparatus is simple in structure, precise and efficient, and is significant in guaranteeing enforcement of orientated precise sowing of corn, realizing careful choosing of corn seeds before sowing, promoting high quality, high yield and stable development of corn industry in our country and mechanization, automation and intelligentization level of agricultural-product detection.
Owner:CHINA AGRI UNIV

Motor-driven wheel drive device

The invention provides a motor-driven wheel drive device in which the durability of a wheel bearing is increased, the weight and size thereof are reduced, and the disassembly and reassembly thereof is taken into account. [MEANS FOR SOLVING PROBLEMS] This motor-driven wheel drive device comprises a drive part (4) having an electric motor (M) driving a planetary speed reduction gear (2) installed in the wheel bearing (1) and a rotating member (17). The wheel bearing (1) further comprises a hub wheel (6) on which an inside rolling surface (6a) is formed, an inner ring (7) press-fitted to the hub wheel, an outer member (8) in which double rows of outside rolling surfaces (8a) are formed, and rolling elements (9). The planetary speed reduction gear (2) further comprises a sun gear (3) formed in a rotating member (17), a plurality of planetary gears (12) disposed between the outer member (8) and the sun gear (3), and carrier pins (14) pivotally supporting these planetary gears on a connection shaft (13). The drive part (4) further comprises the electric motor (M) releasably disposed on the outer member (8) and the rotating member (17). The connection shaft (13) is connected to the hub wheel (6) through a serration, and the rotation of the electric motor (M) is transmitted to the hub wheel (6) through the rotating member (17) and the planetary speed reduction gear (2).
Owner:NTN CORP

Drive axle of electric distribution torque

A drive axle of electric distribution torque, comprise of: a drive motor having a output shaft for outputting torque; differential including differential housing, a drive shaft. the left and right drive half axle rotating about an axis of rotation; double row planetary gear mechanism outputting power of the motor output shaft which will be reduced two-stage; double planetary gear torque distribution mechanism connected to the double planetary gear reduction mechanism, receiving the double planetary gear reduction mechanism output torque, and outputs reverse torque in contrast to said torque; single row double planetary gear coupling mechanism providing opposite direction torque to the left and right axle. The electric drive axle with a torque orientation distribution function of the present invention can distribute the transmission of drive torque to both sides of the axles selectively, and when the torque is directional distributed, electric drive axle is willing to follow the best driver input, maintain driving speed cornering, increasing mobility and the driver's driving pleasure.
Owner:JILIN UNIV

Double-row self-aligning roller bearing and device for supporting wind turbine generator main shaft

A double-row self-aligning roller bearing includes left and right rows of rollers 4 and 5, arranged between an inner race 2 and an outer race 3. A raceway surface 3a of the outer race 3 represents a spherical shape and the rollers 4 and 5 have an outer peripheral surface following the shape of the raceway surface 3a of the outer race 3. The rollers 4 and 5 of the left and right roller rows have respective lengths L1 and L2 different from each other. Also, the left and right roller rows have respective contact angles θ1 and θ2 different from each other.
Owner:NTN CORP +1

Repair welding clamp for lower body of light weight vehicle

The invention relates to a repair welding clamp for lower body of light weight vehicles. The invention belongs to the automobile manufacturing industry field. The repair welding clamp for lower body of light weight vehicles is provided based on disadvantages that conventional welding device adopts mainly manual operation or is low in automation, so that the welding efficiency is low or the welding quality is low and cost is high. The repair welding clamp includes mainly an adjustable bracing frame, an I-shaped bracing body, an operation platform, positioning devices, locking devices, an electrical system or the like. The operation platform has six sets of positioning devices, eight sets of positioning clamping devices and can be latched dynamically and randomly by latching devices. The positioning locking devices are arranged in a symmetric manner, bear balanced force and have a linkage function. The positioning and locking devices can be adjusted dynamically according to different types of light weight cars and different positioning positions different lengths of vehicles and changes of different structures of vehicles. The repair welding clamp is used for four vehicle types such as single-row cars, double-row cars, vans and half-row cars. The repair welding clamp not only has a simple structure, is economical and practical, reduces labor intensity of operation and improves production efficiency, but also has the characteristic of being suitable for lower bodies of vehicles of various kinds. The repair welding clamp serves as one machine used for various vehicles and helps to realize flexible production.
Owner:哈尔滨新科锐工艺装备制造有限公司

Epicyclic Gear System with Flexpins

An epicyclic gear system (A) includes a sun gear (2), a ring gear (4) located around the sun gear, planet gears (6) organized in two arrays between the sun and ring gears, and a carrier (8) having walls (14) located beyond the planet gears and flexpins (24) that project from the walls into the planet gears. Each flexpin includes an inner pin (30) provided with a flange 36 that is secured to the wall from which the inner pin projects, thus cantilevering the inner pin from the wall, and a sleeve (32) that is cantilevered from the opposite end of the inner pin and extends back over the inner pin, thus providing a double cantilever. Between the sleeve of the flexpin and the planet gear for that flexpin is a double row tapered roller bearing (26). The planet gears on the one array may be offset angularly with respect to the planet gears of the other array.
Owner:THE TIMKEN CO

Residual heat boiler of steel ball dedusting type ore heat furnace

The invention relates to a residual heat boiler of a steel ball dedusting type ore heat furnace. The residual heat boiler at least comprises a boiler heated surface, a seal boiler flue gas passage, a furnace top and a furnace bottom ash hopper, wherein the boiler heated surface comprises coil pipe groups; and the seal boiler flue gas passage is formed at the periphery of the boiler heated surface. The residual heat boiler is characterized in that the furnace top is provided with a steel ball spreading device, a steel ball separating and collecting device is arranged under the furnace bottom ash hopper; a circulating type steel ball mechanical transporting device is arranged between the steel ball spreading device and the steel ball separating and collecting device; the circulating type steel ball mechanical transporting device comprises at least one drive wheel, at least three driven wheels, a double-row chain, a horizontal guide rail, a steel ball transporting hopper and a mechanical discharge blocking wheel; the at least one drive wheel and the at least three driven wheels are fixed on a boiler frame, and the steel ball transporting hopper is hung on the double-row chain surrounded between the drive wheels and the driven wheels; and the furnace top is provided with the mechanical discharge blocking wheel capable of turning over the steel ball transporting hopper. The invention has simple mechanism, recycled steel ball, mechanical automation running, low investment and running cost and favorable dedusting effect, and the like, can effectively remove and collect accumulated ash and sticking dust on the residual heat boiler heated surface of the ore heat furnace and greatly develops the energy-conservation and emission-reduction technology of the ore heat furnace smelting industry.
Owner:HANGZHOU HANGGUO INDUSTRIAL BOILER CO LTD

Motor-driven wheel driving apparatus

An electric wheel-drive device where a bearing for a wheel has improved durability, that is reduced in weight and size, and that has increased easiness of disassembling and assembling. The electric wheel-drive device has a drive section (4) having a double-row bearing (1) for a wheel, the bearing being provided with an outer member (7) having on its outer circumference a wheel installation flange (5) and also having an inner member (14) with a stator housing (13); first and second planetary reduction gears (2, 3) arranged radially inward of the bearing (1); and a circular cylindrical support member (27) for driving the planetary reduction gears (2, 3) and to which an electric motor (M) and a rotor section (29) are secured. The support member (27) is rotatably supported relative to the inner member (14) via a rolling bearing (28), and the rotation of the electric motor (M) is transmitted to the outer member (7) via the first and second planetary reduction gears (2, 3) to drive the wheel (W).
Owner:NTN CORP

Culturing method of one-ridge double-row flue-cured tobacco dislocation

The invention discloses a culturing method of one-ridge double-row flue-cured tobacco dislocation, comprising the following steps: (1) selecting tobacco field and preparing soil; (2) ridging; (3) applying base fertilizer; (4) transplanting; and (5) uncovering film, ridging and loading. The method has the following advantages that: (1) on the premise that the use amount of fertilizer for soil in unit area is not changed, the fertilizer use amount of single plant in flue-cured tobacco field is reduced, and the use amount of field organic fertilizer, especially oil cake fertilizer is increased to lead the field tobacco plant to present the growth of middle-plant tobacco, thus obviously improving the tobacco leaf quality; (2) compared with the conventional single ridge, the one-ridge double-row tobacco reduces the labor capability of ridging by about one third, the ridging height is obvious lower than the conventional height, thus reducing ridging labor intensity of tobacco growers; and (3) the one-ridge double-row flue-cured tobacco increases flue-cured tobacco planting density, and meanwhile, a dislocated equal plant distance planting method improves utilization rate of tobacco field to the utmost, ensures the housework operation of tobacco growers, and the row space of the ridge just satisfies growth space of tobacco plants in the field, thus ensuring the income of the tobacco growers.
Owner:GUIZHOU TOBACCO SCI INST

Fire-cured tobacco cultivation technique mode by concave double-ridge plastic membrane mulching during whole breeding season

The invention discloses a whole-growth period plastic mulching cultivation technical mode with double-row concave ridges in a flue cured tobacco field. The tobacco field is plowed and divided to form the double-row concave ridges with a width of 220cm and a height of 15-35cm; a row distance which is 100cm is arranged between the two rows of the concave ridge peaks, and a concave ridge groove is arranged between two rows of the ridge peaks; the peak of the double-row concave ridge is 120cm away from the peak of another double-row concave ridge; the double-row concave ridges are covered by an agricultural plastic mulch with a width of 200cm; tobacco seedling holes are dug on the peaks of the concave ridges at a plant distance of 55-60cm in each row; the depth of the concave ridge groove is 8-12cm, and pervious holes with a diameter of 1cm are dug on the agricultural plastic mulch on the valley of the groove at a vertical distance of 60cm; a basic fertilizer is applied before mulching, and an additional fertilizer is applied 20 days after transplanting. The technical mode can help realize effective water collection, water conservation, fertilizer conservation, temperature adjustment, soil moisture preservation and weed suppression, reduce fertilizer input, save labor, effectively increase the yield and quality of tobacco leaves, and increase economic benefit of tobacco growers.
Owner:ZUNYI TOBACCO OF GUIZHOU TOBACCO CORP

Hybrid power vehicle double row planetary gear electromechanical coupling driving mechanism

The invention discloses a two-planet-row electromechanical coupling driving device of a hybrid vehicle in the technical field of machinery. The device is provided with a front planet row and a back planet row; each of the two planet rows is provided with a planet wheel, a sun gear and a row gear ring; the two planet row gear rings are connected with each other by a clutch. An engine is connected with the planet wheel of the front planet row; an ISG motor is connected with the sun gear of the front planet row; the gear ring of the front planet row is connected with the driving disk of the clutch; the driven disk of the clutch is connected with the gear ring of the back planet row; the planet carrier of the planet wheel of the back planet row is arranged fixedly on a car frame; the sun gear of the back planet row is connected with a drive motor; the outside gear of the gear ring of the back planet row is normally engaged with a power take-off gear. The two-planet-row electromechanical coupling driving device of the hybrid vehicle has the advantages of compact structure, large transmission ratio, large load support capability, stable driving, and high transmission efficiency, thereby realizing power dividing and infinite variable speed at the same time.
Owner:SHANGHAI JIAO TONG UNIV

Construction method for connection passage by double-row hole horizontal freezing method

The invention relates to a construction method of a connecting channel by a double-row hole horizontal freezing method. The method comprises the following steps: freezing parameters are defined; frozen holes are arranged and drilled; a freezing system is mounted and operated; the connecting channel is constructed and excavated; injected slurry is unfrozen and thawed initiatively, artificially and compulsively combining construction monitoring and natural unfreezing; in the method, at the time of natural unfreezing, hot brine circulates in the frozen holes, frozen soil is unfrozen compulsively in means of area separation, and the unfreezing is carried out from down to up; thaw settlement grouting is carried out by a pre-buried injection pipe, and the grouting is carried out from down to up; the frozen holes are arranged in a row of outer holes and a row of inner holes; the length of the holes is subject to the length reaching a side duct piece, the way of holing on the two sides is applied; the connecting channel is excavated in the way of dynamic excavation, namely the heading and constructing of two main tunnels are operated simultaneously. The method efficiently controls the stability of the mouth of a cave in the process of excavation and the sedimentation of the connecting channel and the two main tunnels, and has the advantage of saving the construction period, therefore, the method is applicable for the freezing construction of the connecting channel of various soft soil layers.
Owner:SHANGHAI TUNNEL ENGINEERING CO. LTD.

Advanced double rows slip casting ductule construction technique

InactiveCN101196118ASlow down or avoid damageSlow down or avoid subsidenceUnderground chambersProtective foundationSelf-stabilizationUltimate tensile strength
The invention relates to an engineering technique for a lead double-row grouting small duct, which has the specific procedures of: first of all, excavate a structure shaft, then install a steel grate and then position double-row small conduct on the steel grate. The arc inclined angle between the small duct and the outline of the steel grate are respectively set as 7 to 10 degrees and 30 to 60 degrees with circular space of 0.3 to 0.4m. Then, grout into the small duct; excavate the soil body as per the requirement on the longitudinal space of steel grate after the grouted soil body reaches required strength; position another steel grate and position the double-row grouting small duct till the last steel grate is installed. The invention has the advantages that: during the engineering on large section hidden excavated tunnel, especially getting through the sand layer and gravel (pebble) layer at with no cohesion and insufficient self-stabilization capacity at the bottom of constructions and the arc of tunnel, this invention, by positioning the two-row grouting small duct on the ground layer, is able to realize comprehensive reinforcement of the ground layer and form a secondary buffering shell body based on the original reinforcement shell body, thus further alleviating or preventing the settlement after the breaking of ground layer and the damages to constructions (architectures).
Owner:BEIJING MUNICIPAL CONSTR

Slope protection pile pouring and cable bolting construction method for deep foundation pit

The invention discloses a slope protection pile pouring and cable bolting construction method for a deep foundation pit. The method comprises the following steps of: 1, making preparations before construction; 2, pouring a slope protection pile, namely measuring, paying off, molding and constructing the poured slope protection pile, punching holes on the poured slope protection pile, binding and hoisting a steel reinforcement cage for molding the slope protection pile, pouring concrete into the poured slope protection pile and constructing a crown beam at the top end of the pile; and 3, excavating a foundation in a layered form and constructing anchor ropes on different rows, namely excavating a first-layer foundation, arranging a first row of anchor ropes, arranging a steel waist rail, arranging anchor heads of the anchor ropes, tensioning the anchor ropes and finishing excavating processes of different layers of foundations and arranging different rows of anchor ropes. The method has a reasonable design, simple construction steps, low investment cost, large support depth and good using effect, and solves the problems of complicated construction steps, high construction cost, inconvenience in control, easy damage to surrounding pipelines, roads, buildings and the like, large construction space and the like existing in the conventional double-row pile supporting method can be solved.
Owner:SCEGC NO 6 CONSTR ENG GRP CO LTD

Picture intercepting and sharing method of video player

The invention provides a picture intercepting and sharing method of a video player to improve the quantity of screenshots of the video player and be convenient to intercept a plurality of pictures by a user in a video playing process. Abundant individual picture processing functions are provided into the player; a plurality of screenshots can be selected to carry out zoom combination splicing, and the functions of adding a watermark, zooming and processing by special effect on the pictures can be carried out. The user can combine and arrange the pictures in the player through the screenshot method provided by the invention, can arrange the pictures in a single row or double rows, also can splice the pictures according to a template frame, can change the order of the pictures at random or manually adjust the order of the pictures, can splice and combine the pictures by abundant individual processing modes, and can directly share the pictures on websites such as an SNS (social network site) and a microblog and the like, so that complicated steps that the user needs to store the pictures in a local processor for a plurality of times, and then processes or uploads the pictures to the sharing websites to be spliced are reduced, and communication of the player and a server is reduced.
Owner:LETV INFORMATION TECH BEIJING

Bearing apparatus for a wheel of vehicle

A vehicle wheel bearing apparatus is simple to assemble and disassemble which reduces the man-hour in manufacturing and its manufacturing cost. The bearing apparatus has an inner member (1) including a wheel hub (2) integrally formed with a wheel mounting flange (5) at one end. Axially extending cylindrical portions (2a) and (2b) axially extend from the wheel mounting flange (5). Inner rings (3) and (4) are fitted on the axially extending cylindrical portions (2a) and (2b). An outer member (10) is fitted in a knuckle N which forms a part of a suspension apparatus. Double row rolling elements (6) and (6) are arranged between the inner and outer members (1) and (10). The wheel hub wheel, (2) is rotatably supported by the knuckle N. Annular stop ring grooves (11) and (12) are formed, respectively, on the outer circumferential surface of the outer member (10) and the inner circumferential surface of the knuckle N. A stop ring (13), with a predetermined shearing strength of 20˜200 MPa, is fitted in the stop ring grooves (11) and (12).
Owner:NTN CORP

Double-rowed cofferdam and method for manufacturing the same

The invention relates to a dual-row cofferdam and relative method, which is characterized in that: a row of steel plate post cofferdam is arranged at the outer side of steel tube post cofferdam, and a earthwork filling is processed between two rows, and it strengthens them to form the waterproof curtain. The invention utilizes the large rigidity of steel tube post and the better waterproof property of steel plate post to combine them, with lower cost and simple process.
Owner:SHANGHAI MUNICIPAL ENG DESIGN INST GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products