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..

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.

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.

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.

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).

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.

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 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.