437 results about "Hollow form" patented technology

A thin-wall hollow form for concrete to in-situ pour hollow non-beam floor is composed of top plate, peripheral wall and bottom plate, and is characterized by that its bottom plate contains at least one thin strip for improving its resistance to impact and collision. Its advantages are simple structure, high strength, toughness and resistance to deformation and vibration, light weight and low cost.

The invention relates to a precast hollow floor board with spatial structure and its application. The floor board includes hollow form and cavity, and features including structural bottom slab and structural sub-rib. The structural bottom slab and structural sub ribs contain reinforcing bars or wire mesh to form an integrated load-bearing member with an inverted T-shape. There are exposed bars ormesh on the structural bottom slab. The thicknesses of structure bottom slab and structural sub-rib are larger than the thickness of hollow form whose upper part and side parts are connected to the structural sub-rib, and lower part is connected to the structural bottom slab so as to form a closed integral body. The invented precast hollow floor board possesses advantages of simple structure, high strength, easy for handlings, good shock resistance and reduced structural dead wt..

The device has a first lower substantially flat body, which has in its upper part a flexible post with a narrowed or weakened portion and a second upper body with the passage for receiving and securing said post. The flexible post, which has a rectangular cross section, has in its main surfaces respective mutually opposed toothings, which teeth are offset in the lengthwise direction and the passage of the second body has two latching pawls mutually opposed, so that in the operative position of the devices, the teeth of the flexible post engage in an alternate form with said latching pawls. The second body has a bell like hollow form with a lower widened contact mouth or border.

An indwelling catheter comprises a tube, a female connector and an elastically deformable hemostasis valve which can be pressed by a male connector. An opening taper portion tapered forwardly is formed in a longitudinal intermediate portion of an inner circumferential surface of the female connector. The elastically deformable hemostasis valve is provided longitudinally slidably in the opening taper portion of the female connector and an inside portion extending rearwardly from the opening taper portion. The hemostasis valve includes; a body having a hollow form opened at its front and rear ends or a tubular portion fitted over the connecting portion from a rearward direction; and an openable / closable portion being opened by elastic deformation of the body or the tubular portion.

The floor slab includes bottom plate, hollow form board, in-situ steel bar reinforced concrete hidden ribs and in-situ steel bar reinforced concrete upper plate; and features that the structure bottom plate and hollow form board are connected to form polyhedral structure and that there are reinforcing ribs in the hollow form board. Owing to the structural bottom plate and hollow form board connected into one integral and the hollow form board with reinforcing ribs, the hollow member for the floor slab with hidden and dense ribs has high strength and rigidity and not easy to break, and the floor slab has simple structure, high strength, light weight and easy construction.

An Assembly of a pneumatic tire and a rim and a sound suppressing body used for the assembly, the assembly wherein the sound suppressing body having a volume (V2) of 0.4 to 20% of the total volume (V1) of a tire inside hollow and formed of a sponge material extending in circumferential direction is installed in the tire inside hollow formed by the tire and the rim; the sound suppressing body comprising a tire side sound suppressing body having a bottom face fixed to the tire or a rim side sound suppressing body having a bottom face fixed to the rim, wherein the area gravity of the tire side sound suppressing body main part exceeding the bead base line of the rim side sound suppressing body is positioned in an area ranging form the middle point of a height form a reference plane to the trip of the sound suppressing body to the reference plane.

A surface emitting device is provided. The surface emitting device includes a light guide and a light source. The light guide includes a circular portion that curves light, and a light entrance portion that protrudes from the outer peripheral surface of the circular portion. The light source emits light toward the light entrance portion. The light source is disposed in a hollow formed in the center of the light entrance portion. The outer wall surface of the light entrance portion has a reflecting portion. The reflecting portion includes first and second reflecting surfaces that adjoin at an obtuse angle. Light of the light source heading from the inner wall surface to the outer wall surface of the light entrance portion is reflected by the reflecting portion so as to head into the circular portion.

Apparatus and methods are described for autonomously controlling fluid flow in a tubular in a wellbore. A fluid is flowed through an inlet passageway into a biasing mechanism. A fluid flow distribution is established across the biasing mechanism. The fluid flow distribution is altered in response to a change in the fluid characteristic over time. In response, fluid flow through a downstream sticky switch assembly is altered, thereby altering fluid flow patterns in a downstream vortex assembly. The method “selects” based on a fluid characteristic, such as viscosity, density, velocity, flow rate, etc. The biasing mechanism can take various forms such as a widening passageway, contour elements along the biasing mechanism, or a curved section of the biasing mechanism passageway. The biasing mechanism can include hollows formed in the passageway wall, obstructions extending from the passageway wall, fluid diodes, Tesla fluid diodes, a chicane, or abrupt changes in passageway cross-section.

A hollow form for in-situ pouring concrete is composed of the form unit and bottom plate, and is characterized by that form unit consists of top plate and peripheral wall and is divided into two halves. Its advantages are simple structure, high strength, low cost and easy manufacture.

Metal catalysts comprising hollow forms or spheres are made of metal alloy and optionally activated. The metal catalysts can be used for the hydrogenation, dehydrogenation, isomerization reductive alkylation, reductive amination, and / or hydration reaction of organic compounds.

A foot switch for operation of at least two different functional members of a dental apparatus which is operatively connected with the foot switch has at least two press switches which are each formed as a diaphragm switch comprising a printed circuitry with an arrangement between two carrier foils which as a package are supported on a base plate of the foot switch within a hollow formed by an overlaid cover plate and connected by a signalling line with at least two different functional members of the dental apparatus for transmitting functional control signals upon depression of the cover plate.

The invention discloses a double-station reciprocating rotary type injection stretch blow hollow forming machine which comprises a host machine and a mould. The host machine comprises a machine frame, a worktable panel, an injecting system, an injection molding and mould locking system, a blow molding and mould closing system, and a stretching device; wherein, the worktable panel is horizontally fixed on the machine frame, the injecting system is horizontally arranged on the machine frame, the injection molding and mould locking system is vertical to the worktable panel, the blow molding and mould closing system is horizontally arranged on the worktable panel, and the stretching device is vertically arranged. The injection molding and mould locking system comprises an upper mould plate, a lower mould plate, a mould locking oil cylinder, a guide post, a rotary driving mechanism, a rotary disc and a core-pumping oil cylinder. The lower mould plate is connected with the upper mould plate by the guide post which vertically penetrates through the worktable panel, the mould locking oil cylinder is fixed below the worktable panel, the piston rod end of the mould locking oil cylinder is connected with the lower mould plate, the rotary disc is arranged at the lower end face of the upper mould plate, and the rotary driving mechanism which is arranged at the upper part of the upper mould plate is connected with the rotary disc in a rotating manner. The rotary disc is driven by the rotary driving mechanism to drive a mouth module I and a mouth module II to carry out reciprocating rotation at 180 degrees in an interval manner, so as to finish station exchanging between blank injection and stretching blow molding, thereby realizing that the two functions of blank injection and stretching blow molding can be finished at the same time.

The invention discloses a one-step extrusion-blown molding pot forming technology. According to the one-step extrusion-blown molding pot forming technology, a mold pressing forming technology and an extrusion-blown molding technology are combined into a whole. An air inlet core bar of the extrusion-blown molding technology is also a male mold of the mold pressing forming technology. A pot cover, a spout and a pot body of a formed pot can be formed in an extrusion-blown molding mode with one mold in one step. The technological advance of the hollow forming technology field is promoted, the complex and refine development tendency of current hollow products is met, and more complex products can be developed through the idea.

A vehicle shock absorber includes a housing, and a shock-absorbing member. The housing has at least one hollow formed therein, is formed of a rigid material, and is fixed to a bone structural member of vehicles. The shock-energy absorbing member is disposed in the hollow of the housing at least, and is formed of a super plastic polymer material. The super plastic polymer material exhibits a tensile breaking elongation of 200% or more, a yield strength of 20 MPa or more with respect to a predetermined strain, and a tensile elastic modulus of 400 MPa or more.

A hollow forming machine for injecting, drawing and blowing plastic by a one-step method comprises an installation machine base, an injection device, a fixed mount, an injection bottle blank component, a drawing-blowing component, a blow molding die assembly mechanism assembly, a rotary template assembly, an injection station, a product demoulding component and a quick die change mechanism, wherein the injection device is arranged at one side of the installation machine base, and the fixed mount is arranged at the other side of the installation machine seat; the injection bottle blank component is fixed on the fixed mount; the blow molding die assembly mechanism assembly is arranged on the installation machine base and is matched with the drawing-blowing component; the injection station is arranged below the injection bottle blank component and is used for placing a bottle blank die; the rotary template assembly is arranged below the injection bottle blank component; the upper of the rotary template assembly is driven by a power motor to rotate, and the lower thereof is provided with an oil cylinder; a shaped semi-finished bottle blank is injected in the injection bottle blank component; and the oil cylinder drives the rotary template assembly to go up, and then the rotary template assembly is driven by the power motor to rotate so as to drive the semi-finished bottle blank to enter into the position of a drawing-blowing die, thus the rotary template assembly goes down into the drawing-blowing die under the driving of the oil cylinder, and is drawn and blow molded into a finished bottle. The invention achieves circular production, improves production efficiency, saves energy by two thirds as compared with the existing production method, and fills domestic blank.

The instant invention, the fence post driver and remover, is comprised of a sliding ram and a stationary ram. The stationary ram is a hollow cylinder. To begin operation of the instant invention the stationary ram is placed over the end of the fence post. That is, for operation of the instant invention the fence post slides into the hollow formed by the stationary ram so that the instant invention rests on top of the top end of the fence post. The instant invention may be used to both drive fence posts and remove fence posts. In addition, the instant invention may be used in conjunction with any elongated objects to be driven into or removed from the ground.

A wireless headphone hat has a cranial hollow formed inside a dome portion of a fabric headwear. The dome portion includes an inside dome layer. The inside dome layer is covered by an outside dome layer. The inside dome layer is made of fabric material. The outside dome layer is made of fabric material. A brow pocket is connected to a lower edge of the dome portion. The brow pocket includes an inside pocket layer and an outside pocket layer covering the inside pocket layer. The brow pocket is formed around a circumferential periphery of the inside pocket layer. The inside pocket layer is formed as a tubular shape and made of fabric material.

The high-concentration white polyolefin agglomerate consists of pigment, plastic assistants and carrier resin, nd the plstic assistants include polyvinyl wax, zinc stearate, bright lubricant, compatibilizer-bulking material, crosslinking agent and liquid paraffin. The preparation process includes mixing via high speed stirring, extruding the mixture in a double-screw extruder, cooling, stoving, and pelletizing. The present invention has the features of high whiteness, low consumption, high dispersivity, etc., and is suitable for plastic product with polyethylene, polypropylene or their copolymer as basic material and suitable for injection molding, blowing to film, hollow forming and extruding to produce sheet, flat belt, wire and pipe.

Disclosed is a cast-in-situs concrete hollow slab, which comprises a reinforced-bar concrete (1) a prefabricated thin panel (2) and hollow shuttering members (3), arranged on the prefabricated thin panel (2), the lower floor of the prefabricated thin panel (2) is aligned with the floor of the cast-in-situ hollow slab, a cast-in-situ reinforced-bar rib (4) is formed between the hollow shuttering members (3) of the cast-in-situ reinforced bar concrete (1), a cast-in-situ overlapping layer (5) is formed above the hollow shuttering members (3) of the cast-in-situ reinforced bar concrete (1), and is connected to the cast-in-situ reinforced bar concrete ribs (4), the hollow shuttering members (2) comprise an upper board (6) and peripheral side panels (7), the upper board (6) and the peripheral side panels (7) encloses an open hollow form, characterized in that at least two of the hollow shuttering members (3) are pasted by prefabricated panels (8).

In a power toothbrush, a brush base portion is provided at a top end of a brush attachment which is detachably engaged with a main body containing an actuator generating driving force for driving at least the brush base portion. The brush base portion can be reciprocally moved in an axial direction of the main body with a predetermined stroke and a predetermined frequency, swing around a rotation axis perpendicular to the axial direction of the main body with a predetermined swing angle and a predetermined frequency, or rotated around the rotation axis with a predetermined rotation speed. A plurality of floating base member is floatingly supported in guiding hollows formed in the brush base portion, and a brush staple is planted on each floating base member. Thus, dirt or plaque remained in interdental portion of the tooth can effectively be removed, when top ends of the brush staples contact the surfaces of the tooth.

An inside door handle device of an automobile comprises: a handle case; a cover body for covering a fixing portion of the handle case to a vehicle body; a hollow formed on the rising wall of the hand-operating recess portion; an engaging step portion formed in a bottom wall of the hollow; and an engaging leg for release operation, formed in the cover body.The engaging leg for release operation includes an engaging portion elastically engaged with the engaging step portion; and a hooking protrusion capable of being hooked from above, accommodated in the hollow in the engaging state with the engaging step portion.

The invention discloses a method for outputting a hollow laser beam. The method includes the steps that (1) a solid beam generated by a laser is shaped through a shaping system to form hollow annular pump light; (2) the hollow annular pump light enters a coupling system along an optical axis in an incidence mode, and the coupling system converts the annular pump light into a hollow beam with an appropriate diameter ; (3) the hollow beam enters a resonant cavity in a coupled mode from one end face of the laser resonant cavity, pumping is performed on a gain medium of the laser, and the gain medium in the resonant cavity is made to absorb the pump light through phase control so as to generate continuous hollow laser output. The invention further discloses a device for outputting the hollow beam. According to the device and method, the incident pump light is converted into a hollow mode from a common solid mode, so that no gain exists at an axis part where the laser oscillates, and hollow laser beam output is achieved through phase control, and the device and method have the advantages of being simple to achieve, high in reliability, high in conversion efficiency and high in output power.

A power transmission apparatus includes: a power transmission coil which is formed to surround a winding axis extending in the top-bottom direction, and which has a hollow formed in a center thereof; a ferrite core which has an upper surface on which the power transmission coil is disposed, and which has an opening formed therein, the opening located in the hollow in the power transmission coil when viewed from above; and a metal member located in the hollow and the opening when viewed from above the power transmission coil and the ferrite core.

A tire noise reducing system comprises a pneumatic tire (2) with a hollow, a wheel rim (3) on which the tire is mounted so that said hollow forms a closed cavity (4), and a noise damper (5) disposed in the closed cavity, wherein the noise damper is formed by fixing a strip of a porous material to the tire or wheel rim, the noise damper (5) has a volume in a range of from 0.4 to 20 % of the volume of the cavity (4), the noise damper has a sectional shape substantially constant in the tire circumferential direction, and the pneumatic tire comprises a tread portion (2t) provided with tread grooves (G1-G4) defining a tread pattern having a sea ratio of 20 to 35 %.

A body structure of an electric guitar of a solid type is constituted by a body and a neck, which are firmly joined together using adhesive and / or bolts. An engagement hollow is formed over the entire length of the back of the body, and an extending portion is integrally extended from a base portion of the neck with a smoothly curved portion therebetween. The base portion of the neck is engaged with a rectangular hollow formed in the front end portion of the body, and the extending portion of the neck is engaged with the engagement hollow of the back of the body. An adhesive bank channel is formed in the periphery of the bottom of the engagement hollow to prevent an excess of adhesive from overflowing and dirtying the backs of the body and neck when joined together using adhesive.

In a thermal air flow sensor according to the invention, a hollow formed in a detecting element is communicated with a circuit chamber, in which driving circuit parts of the detecting element are mounted, or an intake duct exterior. Thereby, pressure in the hollow balances with pressure on the outside. Also, since the circuit chamber is provided to be isolated from a detection chamber, in which a detecting part of the detecting element is arranged, that is, a passage chamber, through which air being a measuring object flows, air flowing in the passage chamber can be restrained from flowing into the hollow to have an influence on flow output characteristics.