713 results about "Inverted-T shape" patented technology

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..

Semiconductor structures with reduced gate and / or contact resistances and fabrication methods are provided. The method includes: providing a semiconductor device, which includes forming a transistor of the semiconductor device, where the transistor forming includes: forming a T-shaped gate for the transistor, the T-shaped gate being T-shaped in elevational cross-section; and forming an inverted-T-shaped contact to an active region of the transistor, the inverted-T-shaped contact including a conductive structure with an inverted T-shape in elevational cross-section.

The invention discloses a high-abrasion-resistant metal ceramic composite roller sleeve and a preparation method thereof and belongs to the technical field of abrasion resistant materials. The high-abrasion-resistant metal ceramic composite roller sleeve comprises a preset inner sleeve and an outer sleeve. The preset inner sleeve is made of common low and medium carbon steel or low alloy steel. Casting materials of the outer sleeve are high-abrasion-resistant alloy and a metal ceramic composite material reinforced block. An inverted-T-shaped stainless steel part is put into the bottom of sintering powder, the tip part, exceeding the metal ceramic composite material reinforced block, of the T shape is inserted into a sand mold according to a specified position, and then high-abrasion-resistant alloy liquid is poured into the part between the metal ceramic composite material reinforced block and the preset inner sleeve. Through subsequent heat treatment, the overall composite performanceis promoted, interface bonding of the obtained composite roller sleeve is good, and holes, segregation, cracks and other macroscopic defects are avoided. According to the preparation method, the preparation process is simple, operation is easy, and industrialized mass production is convenient.

The invention discloses a soil sample collecting device for geological exploration. The soil sample collecting device comprises a machine frame; the machine frame is arranged in an inverted T shape; the left side and the right side of the bottom of the machine frame are in threaded connection with adjusting columns which are vertically arranged; the top of the machine frame is in screw connectionwith a screw rod; a first motor is fixed at the bottom of the screw rod; sliding grooves are formed in the left side and the right side of an inner cavity of the machine frame; a supporting plate is connected between two sliding blocks; the bottom of the first motor is connected to the top of the supporting plate; and the output end of the first motor is connected with a rotating shaft. A soil layer is crushed under the action of a drill bit and a crushing blade, then a soil sample is moved upwards under the action of a spiral propeller, and soil is pushed into a sampling barrel and is moved upwards, so that the pushed soil falls into an obliquely-arranged sampling box through a second threaded sleeve and is collected; and the second threaded sleeve and the sampling box are in threaded connection, so that the disassembly and installation of the second threaded sleeve and the sampling box are facilitated, and the sampling box can be replaced when the soil with different depths is collected.

The invention discloses a suspended train rail. The suspended train rail comprises a main body beam, a rail beam and a cover, wherein the rail beam is connected with the lower end of the main body beam, the cross section of the rail beam is in an inverted T shape, the cover can cover the rail beam, and the bottom of the cover is completely open. The invention also provides a suspended bogie. The suspended bogie comprises a framework, the framework comprises a U-shaped beam and cantilever beams horizontally extending from tops of two sides of the U-shaped beam respectively in the longitudinal direction; traveling wheels are symmetrically mounted on the cantilever beams and are opposite, and surfaces of the traveling wheels are in the vertical direction. According to the brand-new suspended train rail, the suspended bogie and a train system comprising the suspended train rail and the suspended bogie, the structural composition of the suspended train rail is completely different from that of an existing suspended train rail, the cover of the suspended train rail is completely open, and maintenance of equipment in the rail, cooling of the bogie and cleaning are facilitated. The advantages that damage to the rail is avoided, the cost is low, the structure is compact, running is stable and reliable and the like are realized.

The invention provides an integrated desk-chair set, comprising two desk supporting bases that are in inverted T shape; each two desk supporting base includes bottom support rods and telescopic desk legs, the top ends of the two telescopic desk legs are arranged on a desk, a moving desktop is arranged on the desk, air springs are arranged between the moving desktop and the desk, a chair moving frame is arranged on each bottom support rod, two telescopic chair legs are vertically arranged at the ends of the chair moving frames, the top ends of the two telescopic chair legs are connected to thebottom end of a chair face, a chair back plate is hinged to the lateral end of the chair face. The integrated desk-chair set has the advantages that both the chair and the desk can be flexibly adjusted according to different heights of students, the integrated desk-chair set meets the principle of ergonomics, and comfort is improved; the desktop having adjustable tilting angle is provided, readingand writing comfort is improved, and studying effect is improved; the desk and the chair are mutually movable and foldable, and the other parts are also mutually movable and foldable, so that space for use is greatly decreased.

The invention discloses T-type oil-water separation equipment integrating two special wettable materials, and belongs to the technical field of wastewater treatment. The T-type oil-water separation equipment is of a three-channel structure and is arranged into a lateral T shape or an inverted T shape according to an oil-water separation system. In the three-channel structure, a vertically-upward channel serves as an oil-water mixing system inlet channel, and the other two channels serve as separation channels. A super-hydrophobic and super-oleophilic separation membrane AW and a super-hydrophilic and underwater super-oleophobic separation membrane AO are arranged in the two separation channels respectively. Compared with an existing oil-water separation mode adopting a single membrane, the problem that a liquid barrier layer is formed due to the large liquid density difference is solved, and continuous oil-water separation is achieved; meanwhile, hydrostatic pressure borne by the separation membranes is reduced in the double-channel separation mode, and the requirement for the mechanical strength of the separation membranes is reduced; continuous oil-water separation without the consideration of the oil-water density difference can be achieved.

The invention discloses a high-reliability pressure-adjusting automatic testing apparatus for a fingerprint module group. The automatic testing apparatus comprises a pedestal, a left support plate, a right support plate, a horizontal bridge plate, at least one horizontal objective table and a switching board installed on the horizontal objective table. The horizontal bridge plate is fixed between the respective upper ends of the left support plate and the right support plate. At least one lifting plate is arranged between the horizontal bridge plate and the horizontal bridge plate; and an inverted-T-shaped through hole is formed in the upper end of the lifting plate and is formed by a penetrating connecting hole and a rectangular through hole. A hanging plate is installed on the front end surface of the lifting plate; a plastic cavity box is installed at the lower end surface of the hanging plate; and a left cylinder, a right cylinder, and a testing pressing head seta are arranged in the cavity of the plastic cavity box respectively; and a testing pressing head for detecting an electrical performance of the fingerprint module group is fixed at the testing pressing head. According to the invention, the force applied on a product force can be adjusted and controlled; and products for testing are diversified. After testing by multiple times, the testing apparatus with the pressure applying tool can have a stable testing result; and testing results are consistent.

A panel for a drop ceiling is made of a semi-rigid but resilient material such as spring steel and includes corner clips adapted to cooperate with the inverted T-shaped stringers of a drop ceiling support system so that the panel is self-centering between opposing stringers and is spring biased into a clamped relationship with horizontal flanges of the inverted T-shape stringers to prevent the panel from moving up and down. The corner clips are also designed to transfer any horizontal compressive shear force in the mounting system to vertical edges of the panel so as not to undesirably bow the flat base of the panel.

A nonvolatile memory array includes floating gates that have an inverted-T shape in cross section along a plane that is perpendicular to the direction along which floating cells are connected together to form a string. Adjacent strings are isolated by shallow trench isolation structures. An array having inverted-T shaped floating gates may be formed in a self-aligned manner.

The invention discloses a method for testing interface bond behavior of CFRP (carbon fiber reinforced polymer) cloth-concrete based on a beam specimen. The method comprises three steps of preparing a test specimen, arranging a test point and loading a test. The test specimen manufactured in the first step is the beam specimen and comprise two concrete test blocks, which are arranged at left and right and symmetric in shape; the two concrete test blocks are inverted T-shaped concrete test blocks; the upper parts in the middle of the two concrete test blocks are connected by a steel hinge; the steel hinge is divided into left and right halves; and the left and right halves are respectively adhered to the concrete test block at the corresponding side, and have the rotation ability. Compared with the traditional double shear test method for testing the interface bond behavior of the CFRP cloth-concrete, the effect of asymmetric loading on the data reliability is avoided; the method has a unique advantage of high accuracy of the test result; and the accuracy and the creditability of the detection result are improved.

The invention provides a method for manufacturing a porous ceramic adsorption table embedded with buffering material and the adsorption table obtained through the manufacturing method. The method comprises the steps of processing a lower slot on the lower surface of an upper laminated plate formed by porous ceramic material into an enclosed curve, processing a through slot, which is narrow than the lower slot and penetrates through the upper surface of the upper laminate plate to the low slot, into an inverted T shape so as to separate the upper laminate plate into a frame member and a central member of an absorption area, coating hermetical painting on the inner side surface of the frame member and the outer side surface of the central member, placing the upper laminate plate on the upper surface of an intermediate laminate plate in such a manner that the central member of the upper laminate plate is embedded in the frame member, and jointing the upper laminate plate and the intermediate laminate plate after fixing the central member on the center of the frame member with tools.

A non-volatile storage system in which a sidewall insulating layer of a floating gate is significantly thinner than a thickness of a bottom insulating layer, and in which raised source / drain regions are provided. During programming or erasing, tunneling occurs predominantly via the sidewall insulating layer and the raised source / drain regions instead of via the bottom insulating layer. The floating gate may have a uniform width or an inverted T shape. The raised source / drain regions may be epitaxially grown from the substrate, and may include a doped region above an undoped region so that the channel length is effectively extended from beneath the floating gate and up into the undoped regions, so that short channel effects are reduced. The ratio of the thicknesses of the sidewall insulating layer to the bottom insulating layer may be about 0.3 to 0.67.

The invention discloses an automatic spraying line of an elevator guide rail. The automatic spraying line comprises a transverse feeding machine, an upender, a longitudinal conveyor, an automatic spraying machine, a longitudinal elevator, a paint drying machine overturning discharging machine and a transverse discharging machine, which are sequentially arranged, wherein the transverse feeding machine and the transverse discharging machine are used for conveying an elevator guide rail which is placed in an inverted T shape, the longitudinal conveyor, the automatic spraying machine, the longitudinal elevator and the paint drying machine are used for conveying an elevator guide rail which is placed in an T shape, the automatic spraying machine comprises a spraying room, wherein the spraying room is communicated with a paint mist processor, a spraying stander is arranged in the spraying room, an I-shaped transmission roller is supported in the spraying stander, a first spraying mechanism and a second spraying mechanism are sequentially arranged in the spraying stander at interval, the first spraying mechanism is used for spraying a fixed arm front surface and a guide arm connecting part of the elevator guide rail, the second spraying mechanism is used for spraying a fixed arm back surface of the elevator guide rail, and the first spraying mechanism and the second spraying mechanism are also respectively communicated with a collection box through a collection funnel. The automatic spraying line has the advantage of high working efficiency.

A detachable computer desk having a frame with two substantially inverted T-shaped legs, two crosspieces interconnected tops of the legs, and two fastening boards each including two parallel series of first apertures at both sides; a bracket assembly having a bar, two endpieces each having an opening, and C-shaped brackets slidable about the bar; shelves coupled to the brackets; a desk top coupled to the fastening boards; a notched member coupled to one leg, the notched member having two parallel columns of notches; an L-shaped computer seat having two parallel columns of second apertures and a lateral slit; and an L-shaped abutment plate opposite to a vertical section of the computer seat, the abutment plate being releasably secured to the slit. Height adjustments of both the computer seat and the desk top are made possible.

A grip adjusting insert for a hole in a bowling ball. An outer sleeve is inserted in the hole in the bowling ball, an inner sleeve is movably mounted in the sleeve, and a finger-engaging member is affixed in the inner sleeve and conforms to a finger of a user. The outer sleeve has a pair of throughslots that are inverted T-shaped. The inner sleeve has a pair of pins that ride axially downwardly in the pair of throughslots in the outer sleeve, respectively, when the inner sleeve is inserted into the sleeve, and at which time, the inner sleeve is rotated relative to the outer sleeve so as to cause the pair of pins to move laterally in the pair of throughslots in the outer sleeve, respectively. The finger-engaging member is rubber poured into the inner sleeve, with a finger therein so as to conform thereto.

A golf tee (1) for use preferably on a mat comprise a base (4) providing locking (4a, 4b) and pivotal elements in the mat. The locking and pivotal elements may be provided by an inverted T-shaped base (4) that easily may be inserted into a slit (57) in the mat and there after the tee may be turned so as to slide the protruding legs (4a, 4b) of the inverted T-shaped base (4) in under the mat structure and thus locking and pivotal elements are provided. An adapter (60, 80) for mounting of the golf tee in mats with a hole instead of a slit is provided and an adapter for mounting in grass is also provided wherein the adapter is arranged to be pressed into place from above.

A suspending-rail and dual-attraction balancing compensation type permanent magnetic levitation train and railway system, comprising a track unit and magnetic levitation vehicles, the track unit including goalposts, inverted T-shaped gate beams, flanged beams made which are integrally formed by molding reinforced concrete so as to form a portal frame and suspending rails suspended from and fixed to flanged beams and each formed as an arch steel crosstie, both ends of each flanged beams being mounted on the inverted T-shaped gate beams in a lap joint manner respectively, a magnetically conductive plate rail with a guide rail in the form of a groove at a center portion thereof being provided to a top inner surface of the arch crosstie and a magnetically conductive wing rail being provided to each inner side surface of the arch crosstie; each magnetic levitation vehicle including an upper power cabin and a lower car which are formed integrally, the magnetic levitation power cabin being inlaid and mounted in the arch crosstie, a top permanent magnet base plate on which a top permanent magnet is provided being mounted on a top outer surface of the magnetic levitation power cabin, and two wing permanent magnets being provided at each of outer side surfaces of the magnetic levitation power cabin, power units being mounted inside the magnetic levitation power cabin, and two sets of guiding fixed pulleys being mounted on both ends inside the magnetic levitation power cabin.

The invention discloses a fixture, which comprises a support table, sliders, bolts, screws, nuts, pressure plates, bottom plates and fixed posts. Grooves which are in big-end-up inverted T shapes are reserved on two sides of the support table. The movable sliders are disposed in the grooves and provided with threaded holes. The bottom plates are disposed on the support table, and each bottom plate is provided with a positioning hole on one side. One fixed post on the other side is fixed on each bottom plate. Each fixed post is provided with a plurality of adjusting holes. One pressure plate is disposed on each fixed post and provided with a through hole as large as the adjusting holes on the fixed post. Each pressure plate is further provided with one screw and one nut, and the corresponding fixed post and the pressure plate are fixed together through the screw and the nut penetrating through the fixed post and the pressure plate. Each bottom plate is connected with the corresponding slider through one bolt. The fixture can be adjusted according to the thickness of a workpiece, so that the trouble of changing fixtures is avoided. The fixture is simple in structure and practical, and accordingly production efficiency is improved.

A semiconductor structure includes an inverted T shaped gate electrode located over a channel region that separates a plurality of source and drain regions within a semiconductor substrate. The inverted T shaped gate electrode may comprise different gate electrode materials in a horizontal portion thereof and a vertical portion thereof. The semiconductor structure may be passivated with an inter-level dielectric (ILD) layer through which may be located and formed a plurality of vias that contact the plurality of source and drain regions. Due to the inverted T shaped gate electrode, the semiconductor structure exhibits a reduced gate electrode to via capacitance.

The invention discloses a semi-automatic metal processing and conveying line for elevator guide rails. The semi-automatic metal processing and conveying line comprises a transverse conveyor belt arranged in a rack, wherein a plurality of groove-shaped accommodating platforms capable of accommodating the elevator guide rails arranged in a T shape and a plurality of riding wheel lifting platforms capable of accommodating the elevator guide rails arranged in an inverted T shape are arranged in the rack above the transverse conveyor belt at intervals sequentially; guide rail accommodating platforms located above the transverse conveyor belt are arranged on the rack in front of each groove-shaped accommodating platform; a pair of front baffle blocks located above the transverse conveyor belt are symmetrically arranged on the left side and the right side of the rack in front of each guide rail accommodating platform; a material turning mechanism and a transition discharging mechanism are arranged on the rack on the front side and the rear side of each groove-shaped accommodating platform respectively; and a pair of rear baffle blocks located above the transverse conveyor belt are symmetrically arranged on the left side and the right side of the rack in front of each riding wheel lifting platform respectively, and a transition blanking platform is further arranged on the front side of each riding wheel lifting platform. The semi-automatic metal processing conveying line has the advantage of high work efficiency.

The invention discloses a strain type three-dimensional acceleration sensor and belongs to the field of a three-dimensional sensor. The sensor comprises an elastic body, fixing glue, a mass block and eight strain foils, wherein an axial cross section of the elastic body is inverted T-shaped; the lower end of the elastic body is of a spoke structure; the lower end is of a cylinder structure and anupper end face of the elastic body is fixedly connected to the mass block through the fixing glue; four strain foils are symmetrically arranged on a same spoke bar of a spoke, particularly, a first strain foil and a third strain foil are arranged on the upper surface of the spoke bar and a second strain foil and a fourth strain foil are arranged on the lower surface of the spoke bar; and four strain foils, namely, a fifth strain foil, a sixth strain foil, a seventh strain foil and an eighth strain foil, are uniformly arranged on a cylinder of the elastic body along a circumferential direction. The strain type three-dimensional acceleration sensor can be used for simultaneously detecting the three-dimensional vibration states of an object.

A suspending-rail and dual-attraction balancing compensation type permanent magnetic levitation train and railway system, comprising a track unit and magnetic levitation vehicles, the track unit including goalposts, inverted T-shaped gate beams, flanged beams made which are integrally formed by molding reinforced concrete so as to form a portal frame and suspending rails suspended from and fixed to flanged beams and each formed as an arch steel crosstie, both ends of each flanged beams being mounted on the inverted T-shaped gate beams in a lap joint manner respectively, a magnetically conductive plate rail with a guide rail in the form of a groove at a center portion thereof being provided to a top inner surface of the arch crosstie and a magnetically conductive wing rail being provided to each inner side surface of the arch crosstie; each magnetic levitation vehicle including an upper power cabin and a lower car which are formed integrally, the magnetic levitation power cabin being inlaid and mounted in the arch crosstie, a top permanent magnet base plate on which a top permanent magnet is provided being mounted on a top outer surface of the magnetic levitation power cabin, and two wing permanent magnets being provided at each of outer side surfaces of the magnetic levitation power cabin, power units being mounted inside the magnetic levitation power cabin, and two sets of guiding fixed pulleys being mounted on both ends inside the magnetic levitation power cabin.

The invention discloses a road and bridge expansion joint structure. The road and bridge expansion joint structure comprises an inverted-T-shaped plate component with the bridge longitudinal cross section being in an inverted T shape. Two wing plates of the inverted-T-shaped plate component transversely extend into a base body of a bridge pavement layer. A web extends upwards to be flush with the upper surface of the bridge pavement layer. Each wing plate is sequentially provided with a cushion layer and a protection wear-resisting layer from bottom to top in a laying mode and is longitudinally connected with the bridge pavement layer. An expansion joint notch and the two sides of the expansion joint notch are filled with elastic layers to be sealed. The road and bridge expansion joint structure has the advantages of being convenient to construct, reasonable in design, high in efficiency, good in vehicle load bearing performance, good in elasticity, smooth and attractive in surface, and good in waterproofing, anti-aging, anti-fatigue, shock resistance and corrosion resistance. In accordance with the characteristics of an expansion joint, three materials of different components and matching ratios are adopted, layered pavement is conducted according to different stress conditions and states, good durability is achieved, construction is rapid and simple, and the expansion joint performance requirement can be well met.

The invention discloses a workbench for a vertical milling machine. The workbench comprises a workbench body; the upper surface of the workbench body is provided with a plurality of parallel inverted T-shaped built-in grooves; a vertical bolt strip in a shape of a Chinese character 'tu' is arranged and is used for sliding in each built-in groove; the bolt strip is provided with a clamping screw which is matched with a nut and a bolt in corresponding sizes for fixing. Compared with the prior art, the workbench for the vertical milling machine has the advantages that scrap iron in T-shaped grooves on the workbench can be effectively prevented and cleaned, and the position of the screw for fixing in each groove can be convenient to adjust.

The invention provides a novel bidirectional inverted-T-shaped beam combined floor which is applied to building structures in the engineering field. The novel bidirectional inverted-T-shaped beam combined floor comprises octothorpe-shaped components which are composed of a plurality of inverted-T-shaped steel beams. A plurality of small holes are sequentially formed in webs of the inverted-T-shaped steel beams of the octothorpe-shaped components. Steel bars are arranged between the small holes in the webs of the inverted-T-shaped steel beams in a crossed mode. The multiple octothorpe-shaped components form a bidirectional steel rib structure through splicing joints, and the bidirectional steel rib structure has a stress function during construction. Light prefabricated plates serving as a permanent formwork of the floor sequentially arranged in all cells of the bidirectional steel rib structure, and concrete is evenly poured on the bidirectional steel rib structure and the light prefabricated plates. The novel bidirectional inverted-T-shaped beam combined floor has the characteristics of being high in strength and rigidity and good in ductility; and formwork supporting is not needed, construction is easy, operation is easy, the self weight is low, the height of a structural layer is small, the effective service space is increased, and the economic benefits are good.