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Structure and manufacturing method of disposable electrochemical sensor strip
ActiveUS7063776B2Reduce the amount requiredShorten production timeImmobilised enzymesBioreactor/fermenter combinationsMetalElectrical and Electronics engineering
A disposable electrochemical sensor strip is provided. The sensor strip includes an isolating sheet having at least a through hole, at least a conductive raw material mounted in the through hole, a metal film covered on the conductive raw material to form an electrode which comprises an electrode working surface for processing an electrode action, and an electrode connecting surface, at least a printed conductive film mounted on the isolating sheet and having a connecting terminal for being electrically connected to the electrode connecting surface, and a signal output terminal for outputting a measured signal produced by the electrode action.
Owner:HUANG CHUN MU
Optical semiconductor device and method for manufacturing the same
InactiveUS20090057646A1Improve luminous efficiencySuppress gas phase reactionSemiconductor/solid-state device manufacturingSemiconductor devicesLattice mismatchNucleation mode
Because of a large lattice mismatch between a sapphire substrate and a group III-V compound semiconductor, a good crystal is difficult to grow. A high-quality AlN buffer growth structure A on a sapphire substrate includes a sapphire (0001) substrate 1, an AlN nucleation layer 3 formed on the sapphire substrate 1, a pulsed supplied AlN layer 5 formed on the AlN nucleation layer 3, and a continuous growth AlN layer 7 formed on the pulsed supplied AlN layer 5. Formed on the continuous growth AlN layer 7 is at least one set of a pulsed supplied AlN layer 11 and a continuous growth AlN layer 15. The AlN layer 3 is grown in an initial nucleation mode which is a first growth mode by using an NH3 pulsed supply method. The pulsed supplied AlN layer 5 is formed by using NH3 pulsed supply in a low growth mode which is a second growth mode that increases a grain size and reduces dislocations and therefore is capable of reducing dislocations and burying the nucleation layer 3. The continuous growth AlN layer 7 is a fast vertical growth mode that improves flatness and suppresses crack occurrences. As examples of the thickness of layers; the pulsed supplied AlN layer 5, 11 is 0.3 μm and the thickness of the continuous growth AlN layer 7, 15 is 1 μm, for example. Characteristics of conditions under which layers are grown are as follows. The AlN layer 3 is grown under a high temperature and a high pressure with a low V-III ratio (less N). The pulsed supplied AlN layer 5 is grown at a low temperature and a low pressure with a high V-III ratio (more N). The continuous AlN layer 7 is grown at a high temperature and a high pressure with a high V-III ratio (Al rich and less N) without using an NH3 pulsed supply AlN growth method.
Owner:RIKEN
Hydrophilic surface modifying macromolecules (H-phil SMM) and H-phil SMM blended membranes
InactiveUS20050176893A1Simple and inexpensiveSurface stabilizationVolatile organic compoundSurface modified
The present invention provides hydrophilic surface modifying macromolecules (H-phil SMM) and H-phil SMM and blended membranes produced incorporating the hydrophilic surface modifying macromolecules. The membranes include a hydrophilic base polymer, and the hydrophilic surface modifying macromolecules (H-phil SMM) which impart surface hydrophilic properties to the membrane. The membranes produced with the surface modifying macromolecules give polymer membranes useful in the separation of water from a solution containing volatile organic compounds and water.
Owner:UNIVERSITY OF OTTAWA
Magnetic carrier and two-component developer
InactiveUS7279262B2High image densityGood reproducibilityDevelopersMolecular geometryElectrical and Electronics engineering
A magnetic carrier composed of carrier particles is provided in which each carrier particle has a carrier core including magnetic fine particles and a binder resin with the carrier core surface being coated with a coat material containing a coat resin. In the magnetic carrier, Fatom / Catom and (Fatom / Catom) / (Fcalc / Ccalc) are respectively in specific ranges, wherein Fatom and Catom represent respectively a fluorine element abundance ratio and a carbon element abundance ratio at the magnetic carrier particle surface, and Fcalc and Ccalc represent respectively a fluorine element abundance ratio and a carbon element abundance ratio which are calculable from the molecular structure of the coat resin.In addition, a two-component developer is provoded including the magnetic carrier and a toner having a specific contact angle against water.
Owner:CANON KK
Speaker system with oscillation detection unit
InactiveUS7769192B2Reduce degradationHigh precisionTransducer detailsPhase-affecting property measurementsEngineeringLoudspeaker
A speaker system comprising a magnetic circuit, a cylindrical shaped voice coil unit generating oscillation in the magnetic circuit, an oscillating plate extending in a circular conical shape from a outer peripheral surface of the voice coil unit, a dust cap connecting to the oscillating plate covering an open face of the voice coil unit on a side surrounded by the oscillating plate, a plurality of linking members connecting to the voice coil unit, and a detection unit. The link members extend toward a center axis of the voice coil unit. The detecting unit further comprises a first component part fastened to the linking members and positioned at the center axis of the voice coil unit closer to the voice coil unit side than the dust cap, and a second component part positioned facing the first component part and is independent of the voice coil unit such that the second component part is held between the first component part and the dust cap. The detecting unit optically detects the oscillations of the voice coil unit by means of a light that courses between the previously mentioned first component part and the second component part.
Owner:ROLAND CORP
Height adjustable desk
InactiveUS20060096505A1Improve convenienceSurface stabilizationOffice tablesSchool benchesLower upperDesk
A desk assembly (10) comprises a base (12) adapted to stably engage a floor surface. An upright support member (14) is secured to and extends upwardly from the base. A planar desk (34) is connected in slidable engagement to the support member (14) between a lower (L) and an upper position (U). Biasing means, preferably a gas spring (100), is connected between the base (12) and the desk (34). The biasing means biases the desk upwardly from said lower position (L) toward said upper position (U). Locking means is operable to selectively secure said desk intermediate said lower and upper positions. The provision of an upwardly biased force by biasing means, between the upper and lower positions, improves convenience for the user when adjusting height of the desk.
Owner:SYKES CHRISTOPHERC
Inflatable mattress
An inflatable mattress for storage within and use in combination with a furniture member includes a main body portion having a lower surface supportable on a surface such as a floor and an upper surface. An extending end of the mattress includes an extension of the upper surface co-planar with the upper surface, and a support surface which contacts a mating support surface of the furniture member. At least one fluid inlet valve and at least one fluid discharge valve are distributed about the inflatable mattress. A plurality of attachment devices connected to the inflatable mattress are used to temporarily or permanently attach the inflatable mattress to the furniture member. The inflatable mattress is collapsible for storage within a furniture member interior envelope.
Owner:WEST & KNOWLES DESIGN & ENG L L C
Touch screen transparent conductive film and preparation method thereof
ActiveCN101465173AHigh transparencySurface stabilizationConductive layers on insulating-supportsStatic indicating devicesTransparent conducting filmAntifouling coating
The invention relates to a transparent conductive film of a high performance touch screen and a preparation method thereof. The transparent conductive film comprises an easy bonding layer (optional), an anti-reflection layer and a hard antifouling coating which are coated on the upper side surface of base material in sequence, and an easy bonding layer (optional) and an ITO conducting layer on the lower side surface of the base material. The transparent conductive film has the advantages of excellent chemical proofing capability, antifriction and anti-damage capabilities, water resisting property, repression of swelling and low probability of Newton ring, and both the transparent conductive film and the touch screen provided by the invention have a stable distinctive character.
Owner:GUANG DONG DONGBOND TECH CO LTD
Device and method for plugging a bone channel with an expandable medullary plug
A plug for stopping the flow of bone cement in a bone channel, such as the intramedullary bone canal, or a previously prepared channel, includes an actuator and a number of flexible beams extending around the bone plug. The actuator is removably attached to a rod within an insertion tool used to deploy the bone plug at a predetermined location within the channel. Within the tool, the rod is pulled to move the actuator into a position applying a compressive force to act between the ends of each of the flexible beams. This compressive force causes each beam to buckle outward, into contact with the channel. The rod is then released from the actuator, and the tool is withrawn from the channel so that bone cement can be applied to hold a prosthesis in place within the channel in a proximal direction from the bone plug.
Owner:HAJIANPOUR MOHAMMED ALI
Optical semiconductor device and method for manufacturing the same
InactiveUS7811847B2Suppress gas phase reactionPromote migrationSemiconductor/solid-state device manufacturingSemiconductor devicesLattice mismatchNucleation mode
Because of a large lattice mismatch between a sapphire substrate and a group III-V compound semiconductor, a good crystal is difficult to grow. A high-quality AlN buffer growth structure A on a sapphire substrate includes a sapphire (0001) substrate 1, an AlN nucleation layer 3 formed on the sapphire substrate 1, a pulsed supplied AlN layer 5 formed on the AlN nucleation layer 3, and a continuous growth AlN layer 7 formed on the pulsed supplied AlN layer 5. Formed on the continuous growth AlN layer 7 is at least one set of a pulsed supplied AlN layer 11 and a continuous growth AlN layer 15. The AlN layer 3 is grown in an initial nucleation mode which is a first growth mode by using an NH3 pulsed supply method. The pulsed supplied AlN layer 5 is formed by using NH3 pulsed supply in a low growth mode which is a second growth mode that increases a grain size and reduces dislocations and therefore is capable of reducing dislocations and burying the nucleation layer 3. The continuous growth AlN layer 7 is a fast vertical growth mode that improves flatness and suppresses crack occurrences. As examples of the thickness of layers; the pulsed supplied AlN layer 5, 11 is 0.3 μm and the thickness of the continuous growth AlN layer 7, 15 is 1 μm, for example. Characteristics of conditions under which layers are grown are as follows. The AlN layer 3 is grown under a high temperature and a high pressure with a low V-III ratio (less N). The pulsed supplied AlN layer 5 is grown at a low temperature and a low pressure with a high V-III ratio (more N). The continuous AlN layer 7 is grown at a high temperature and a high pressure with a high V-III ratio (Al rich and less N) without using an NH3 pulsed supply AlN growth method.
Owner:RIKEN
High-strength lightweight aggregate concrete and preparation method thereof
The invention provides high-strength lightweight aggregate concrete. The concrete comprises the following raw materials in parts by weight: 350 to 550 parts of cementing material, 450 to 600 parts oflightweight fine aggregate, 500 to 650 parts of lightweight coarse aggregate, 5 to 7 parts of an additive, and 150 to 170 parts of water. The lightweight fine aggregate comprises 60 to 80 percent of fine aggregate ceramsite in mass percent, and 20 to 40 percent of active construction waste powder in mass percent; the lightweight coarse aggregate comprises the following components in mass percent:50 to 75 percent of coarse aggregate ceramsite, 10 to 30 percent of stone gangue, 10 to 20 percent of ceramic waste residue, and 3 to 8 percent of expanded graphite. The concrete reasonably utilizes the stone gangue, construction waste, urban sludge and ceramic waste residue into a gel material and aggregate, not only improves the mechanical strength and stability of the concrete, but also provides a novel approach for the reuse of solid waste, and is beneficial to energy saving and environmental pressure relieving.
Owner:GUANGXI XUTENG INDUSTRIAL GROUP CO LTD
Self-propelled robot
InactiveUS20170157775A1Surface stabilizationPrevent fallingSolar heating energyAutomatic obstacle detectionBiological activationControl theory
Provided is a self-propelled robot that can prevent damage due to dropping of the self-propelled robot and efficiently perform the operation on a flat surface. A self-propelled robot 1 that self-travels on a structure SP having a flat surface SF to perform operation on the flat surface SF of the structure SP, the self-propelled robot includes: a robot main body 2 in which a moving unit 4 for the self-travel is provided; and a controller 30 that controls movement of the robot main body 2. At this point, the controller 30 includes an edge detector 31 that detects an end edge of the flat surface SF, and the controller 30 has a function of controlling activation of the moving unit 4 such that a distance between the end edge of the flat surface SF and the moving unit 4 is maintained to a given extent or more based on a signal from the edge detector 31.
Owner:MIRAIKIKAI
Magnetic carrier and two-component developer
InactiveUS20050112489A1High image densityExcellent dot reproducibilityDevelopersMaterials scienceMolecular geometry
A magnetic carrier composed of carrier particles is provided in which each carrier particle has a carrier core including magnetic fine particles and a binder resin with the carrier core surface being coated with a coat material containing a coat resin. In the magnetic carrier, Fatom / Catom and (Fatom / Catom) / (Fcalc / Ccalc) are respectively in specific ranges, wherein Fatom and Catom represent respectively a fluorine element abundance ratio and a carbon element abundance ratio at the magnetic carrier particle surface, and Fcalc and Ccalc represent respectively a fluorine element abundance ratio and a carbon element abundance ratio which are calculable from the molecular structure of the coat resin. In addition, a two-component developer is provoded including the magnetic carrier and a toner having a specific contact angle against water.
Owner:CANON KK
Pigmented alkoxyzirconium sol
InactiveUS7001666B2Suitable appearanceImprove adhesionPigmenting treatmentPretreated surfacesSolventReflectivity
A surface treatment, especially for titanium and aluminum alloys, forms a pigmented sol-gel film covalently bonded on the metal surface to produce desired color, gloss, reflectivity, electrical conductivity, emissivity, or a combination thereof usable over a wide temperature range. The coating retains its characteristics and impact resistance following exposures to temperatures at least in the range from −321° F. to 750° F. An aqueous sol containing an alkoxyzirconium and an organosilane with an organic acid catalyst and zirconium stabilizer is applied to etched or grit blasted substrates by dipping, spraying, or drenching, to produce bonds in a single application comparable in strength and performance to standard anodize controls. Parameters affecting performance include the sol composition, the Si / Zr ratio, the ratio of sol ingredients, the concentration of the sol, the carrier solvent, solution age, catalysts, surface pretreatment, application method, curing process, and primer used. The sol-gel coating may be graded in its ceramic character by adjusting the organosilane component between TEOS and silanes that have more distinctive organic character by virtue of organic ligands attached to the silicon.
Owner:THE BOEING CO
Pigmented organometallic sol
InactiveUS20050229816A1Improve bindingSuitable appearancePigmenting treatmentPretreated surfacesOrganic acidEmissivity
A surface treatment, especially for titanium and aluminum alloys, forms a pigmented sol-gel film covalently bonded on the metal surface to produce desired color, gloss, reflectivity, electrical conductivity, emissivity, or a combination thereof usable over a wide temperature range. The coating retains its characteristics and impact resistance following exposures to temperatures at least in the range from −321° F. to 750° F. An aqueous sol containing an organometallic alkoxide containing either Ti or Al and an organosilane with an organic acid catalyst and stabilizer is applied to etched or grit blasted substrates by dipping, spraying, or drenching, to produce bonds in a single application comparable in strength and performance to standard anodize controls. The sol-gel coating may be graded in its ceramic character by adjusting the organosilane component between TEOS and silanes that have more distinctive organic character by virtue of organic ligands attached to the silicon.
Owner:THE BOEING CO
Porous tubular device and method for controlling windblown particle stabilization deposition and retention
InactiveUS6986624B1Easy to disassembleEasy to deployProtective constructionExcavationsAerodynamic dragDevice form
Owner:TABLER RONALD D
Isolated gate field effect transistor and manufacture method thereof
ActiveCN102723358ASurface stabilizationAvoid contaminationSemiconductor/solid-state device manufacturingSemiconductor devicesMOSFETMetal grid
The invention discloses an isolated gate field effect transistor and the manufacture method thereof. Through the method of introducing metal when a dielectric layer is grown on a nitride transistor structure, the chemical properties of the dielectric layer are changed, and the effects of controlling etching speed and depth can be played. A groove structure is formed in a grid region in a partially thinned manner, and part of dielectric layer is reserved at the grid. A metal grid is arranged on the dielectric layer in the groove region of the grid, so as to form metal / dielectric layer / semi-conductor contact, and meanwhile, the groove is used for forming a field plate structure. Since the surface of a semi-conductor is protected by the dielectric layer during the entire technological process, damages to the surface of nitride, stress releasing and staining on the surface of the nitride can be greatly reduced, and the current collapsing effect of a device can be reduced greatly. Due to the MISFET (Metal Insulation Semiconductor Field Effect Transistor) or MOSFET (Metal-Oxide -Semiconductor Field Effect Transistor) structure is formed by the high-quality dielectric layer, current leakage of the grid can be reduced greatly.
Owner:昆山工研院第三代半导体研究院有限公司
Intrinsically fluorescent, self-multimerizing MHC fusion proteins and complexes thereof
Presented are intrinsically fluorescent, self-multimerizing MHC fusion proteins, and complexes assembled therefrom that are capable of detectably labeling antigen-specific T lymphocytes. Also presented are methods for labeling antigen-specific T lymphocytes with the intrinsically fluorescent complexes of the present invention, and methods, particularly flow cytometric methods, for detecting, enumerating, enriching, and depleting antigen specific T lymphocytes so labeled.
Owner:BECTON DICKINSON & CO
Opening arrangement, packaging and method of providing a packaging with an opening arrangement
InactiveUS7191931B2Easy to foldSurface stabilizationLidsNon-removalbe lids/coversEngineeringClosed state
An opening arrangement includes a bottom piece disposed to be positioned on a packaging material and to define a pouring opening; a lid disposed, in a closed state, to seal the pouring opening; and a tamper evidence intended to be broken the first time the opening arrangement is opened and which is connected to a pull tab connected to the lid and to a fastening surface disposed to be connected to the packaging material. The fastening surface is disposed to extend over a fold line along which the packaging material is intended to be folded for forming a package. A package and a method of providing a package with an opening arrangement are also disclosed.
Owner:TETRA LAVAL HLDG & FINANCE SA
Preparing method of human body epidermis physiology electrode sensor
ActiveCN109077713AReduce contact resistanceIncrease contact areaDiagnostic recording/measuringSensorsPolyvinyl alcoholDynamic monitoring
The invention belongs to the field of flexible electronics, and discloses a preparing method of a human body epidermis physiology electrode sensor. The method comprises the following steps of 1, cleaning and blow-drying a hard substrate; 2, spin-coating the hard substrate with a polyvinyl alcohol solution, and heating and curing for film formation to form a sacrificial layer; 3, installing a screen printing plate and the hard substrate on a screen printing machine; 4, coating the screen printing plate with a conductive material, and utilizing a scraper for blade coating on the surface of the screen printing plate to form a function layer of the sensor; 5, spin-coating the sacrificial layer with a flexible high polymer, and heating to cure the flexible high polymer; 6, utilizing deionized water for heating to completely dissolve the sacrificial layer, so that the human body epidermis physiology electrode sensor is stripped from the hard substrate. The sensor prepared by means of the method has good wearability, and can move along with the human body without relative displacement; on one hand, the interference of movement with signals is reduced, and dynamic monitoring can be achieved; on the other hand, the sensor is comfortable, can be worn for a long term, and can collect richer physiology signals.
Owner:HUAZHONG UNIV OF SCI & TECH
Colored polyurethane surface coatings
InactiveUS6479561B1Surface stabilizationEfficiently and effectively make useSynthetic resin layered productsCoatingsPrepolymerPolyresin
Owner:MILLIKEN & CO
Method for plating chromium on surface of plastic material
InactiveCN101760721AIncrease metallic lusterHigh hardnessVacuum evaporation coatingSputtering coatingPolymeric surfacePlastic materials
The invention relates to the technical field of plating films on the surface of organic polymers. The invention is realized through the following technical scheme that: the method for plating chromium on the surface of plastic materials sequentially comprises (1) a step for pretreatment; (2) a step for preparing a bottom plating layer; (3) a step for preparing a metallic chromium plating layer; (4) a step for preparing a surface plating layer; (5) inspection; and (6) packaging. The invention is suitable for the mechanical industry, transparent materials and other aspects.
Owner:安徽翰邦科技咨询有限公司
Headwear comprising rearview mirrors
Owner:TRONVIG WILLIAM J
Soft-pellet creep feed and preparation method thereof
ActiveCN103416591AImprove palatabilityEliminate lossAnimal feeding stuffAdditive ingredientBlood plasma
The invention discloses a soft-pellet creep feed and a preparation method thereof, and belongs to the field of feed formulation design and feed processing techniques. The preparation method comprises the following steps: mixing and bacillus subtilis and pickled vegetables fermentation liquor, performing fermentation in sequence to form fermented soybean meal and rice which are taken as main raw materials; adding steam fish meal, blood plasma powder, soybean meal and the like in a matched manner; utilizing a soft pelletizer to prepare pellet materials through ultramicro smashing; utilizing a syrup spray device to uniformly spray syrup on the surfaces of the pellet materials. The creep feed provided by the invention is full and balanced in nutrition, is easy to digest and intake, has stable quality, and is subjected to multiple fermentation. Moreover, feed inducing performance, soft protection performance and nutrition full value performance are improved, as a process of combining a soft manufacturing system and the syrup spray system is adopted; the incidence of hardening of medium-sized pellet feed during the preservation process is reduced; compared with a dry pellet feed, the loss of nutritional ingredient during the granulating heating and drying process is avoided, and the palatability of soft pellet feed is kept well.
Owner:LIAONING WELLHOPE AGRI TECH
Thermoplastically processable polyurethane molding material
Owner:INTIER AUTOMOTIVE EYBL INTERIORS +1
In-cabin room projection for aircraft
InactiveUS20100201950A1Optimization mechanismReduce sensitivityProjectorsProjection screenEngineering
The invention pertains to the projection of image contents in an aircraft. A mechanical projection surface is provided that features a gear with two thrust sleeves and two gear rods. The two thrust sleeves are displaced opposite to one another due to the rotation of a threaded rod. Each of the two thrust sleeves carries along an assigned gear rod such that a projection screen is respectively retracted or extended.
Owner:AIRBUS OPERATIONS GMBH
Semiconductor phosphor nanoparticle including semiconductor crystal particle made of 13th family-15th family semiconductor
InactiveUS20110076483A1Stably surface defectAvoid inactivationLayered productsConductive materialSimple Organic CompoundsPhosphor
Disclosed is a semiconductor phosphor nanoparticle including a semiconductor crystalline particle made of a 13th family-15th family semiconductor, a modified organic compound binding to the semiconductor crystalline particle, and a layered compound sandwiching the semiconductor crystalline particle protected with the modified organic compound.
Owner:SHARP KK
Method for remediating acid/heavy metal cadmium composite polluted soil by using Pennisetum hydridum
InactiveCN103406350AWell developed root systemStrong stress resistanceContaminated soil reclamationFertilizerRoot system
The invention discloses a method for remediating acid / heavy metal cadmium composite polluted soil by using Pennisetum hydridum. The method comprises the following steps: plowing polluted soil, and planting Pennisetum hydridum in low ridges from March, wherein irrigation and fertilizer application are performed or not performed in the complete growing season; and three months after planting, starting reaping the aerial part of Pennisetum hydridum once a month, incinerating the reaped substance by a conventional method, and extracting the heavy metal and fertilizer, thereby achieving the goal of remediating acid / heavy metal cadmium composite polluted soil. Pennisetum hydridum is a perennial herb; and by continuously planting the Pennisetum hydridum on the heavy metal cadmium polluted soil and continuously reaping the aerial part, the heavy metal cadmium in the soil is continuously extracted and transferred, and the pH value of the soil is changed until the soil achieves the environmental safety standard. The Pennisetum hydridum, which has the advantages of high biomass of the aerial part and developed root system, can absorb and fix abundant heavy metals, can retain water and protect soil, enhances the green level of the polluted area, and has favorable economic benefit, social benefit and ecological effect.
Owner:SCI RES ACADEMY OF GUANGXI ENVIRONMENTAL PROTECTION
Particle reduction with combined SCR and NH3 slip catalyst
InactiveUS8883100B2Surface stabilizationCombination devicesNitrogen compoundsCombustionActive component
The present invention relates to a particle filter comprising a porous carrier body, an SCR active component and an oxidation catalyst, wherein the SCR active component is present as coating on the exhaust-gas entry surface and the inner surface of the porous carrier body and the oxidation catalyst as coating on the exhaust-gas exit surface of the porous carrier body. According to the invention the oxidation catalyst changes its function depending on operating conditions. In normal operation it serves as NH3 slip catalyst for oxidizing excess NH3 and during filter regeneration it operates according to the 3-way principle for converting NOx and CO. The invention also relates to a method for producing the particle filter, the use of the particle filter for treating exhaust gases from the combustion of fossil, synthetic or biofuels as well as an exhaust-gas cleaning system which contains the particle filter according to the invention.
Owner:SUED CHEM IP GMBH & CO KG
Carrier with adjustable parallel track structure for retaining musical instruments
ActiveUS8646666B2Easy to installRaise and lower heightTravelling sacksTravelling carriersCantileverMechanical engineering
An instrument carrier is disclosed for supporting one or more drums without using traditional “J” rods components. The carrier uses sliders that eliminate the interference with the user's legs and more particularly the user's thighs and provides a more natural stride of the user. The drum mounting structure is repositioned or translated on the sliders. The carrier allows the drum to be rigidly mounted in a variety of positions relative to the user. The cantilevered weight of the drum(s) rotates the drum or drum array to lock the drum(s) into a vertical or horizontal slots or saddle. In another embodiment a bridge extends from the carrier to a single post or tube to support a slidably mounted single drum. The structure also eliminates the necessity of a structurally rigid fixed abdomen plate and allows for use of a flexible and conforming abdomen plate.
Owner:RANDALL MAY INT
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