570 results about "Floor plate" patented technology

A securing device has a base with two longitudinal sides, an extended tongue, a rib, two buffers and at least one pin. The extended tongue is formed on one of the longitudinal sides on the top surface and has a first mounting slit defined in the inner surface of the extended tongue. The rib is formed on the top surface of the base to form a receiving recess between the extended tongue and the rib. The rib is aligned with the extended tongue and has a second mounting slit. The at least one hole is defined in the base at the other longitudinal side. The two buffers are respectively mounted in the first mounting slit and the second slit. The at least one pin is mounted respectively in the at least one hole. With the two buffers, the noise caused from piecing the floor plates will be reduced.

The present invention is an ammunition magazine, preferably made of a glass fiber reinforced polymer, utilizing a structurally enhancing ridge, angular guide rails and a follower made to interface with said guide rails to reduce wobble. The preferred embodiment also features a protective cover that distributes forces from the spring to more structurally sound areas of the magazine, thus reducing feed end splay, and an ammunition indication system comprised of at least one window and a noticeable marker on the follower spring. The follower and magazine casing are also designed to interface to prevent the follower from popping out of the feed end and the floor plate of the magazine utilizes a locking plate and sliding relationship between the floor plate, locking plate and magazine to secure the floor plate onto the magazine casing. The cover features built in tools for, among other things, unloading and disassembling the magazine.

A new interface for a magazine follower and floor plate is used to provide greater stability to the round stack and a more sturdy system overall. The floor plate is designed with two opposite legs, the rear being shorter than the front leg so as to facilitate travel throughout the magazine and clearing of accumulated dirt and debris. The floor plate, in one embodiment, utilizes a lock plate that is shaped and sized to become a shoe for the compressed spring and associated follower. In an alternate embodiment, the floor plate itself serves the purpose and, with provided teeth, directly fastens to the magazine casing at notches manufactured in the magazine wall for that purpose. Other enhancements to the magazine include at least one matrix of divots to provide a paint surface, an over-insertion stop and a lower rear geometry to aid in clearing debris and grit.

The present invention is a unitary piece block formed of polymers (such as polystyrene or other high strength polymer) by a single injection molding step which are assembled into a recreational vehicle leveler. The invention ramp provides four sets of four connectors at a top of a floor plate, which are adapted to interlock in cavity structures formed within a cavity on the underside of the block. Two adjacent blocks are secured together by applying to their top surfaces the securing cavity structure of an underside of a third such block. Such blocks can be stacked in an interlocking manner to reduce storage space.

The present invention relates generally to the field of cell biology of stem cells, more specifically the directed differentiation of pluripotent or multipotent stem cells, including human embryonic stem cells (hESC), somatic stem cells, and induced human pluripotent stem cells (hiPSC) using novel culture conditions. Specifically, methods are provided for obtaining neural tissue, floor plate cells, and placode including induction of neural plate development in hESCs for obtaining midbrain dopamine (DA) neurons, motorneurons, and sensory neurons. Further, neural plate tissue obtained using methods of the present inventions are contemplated for use in co-cultures with other tissues as inducers for shifting differentiation pathways, i.e. patterning.

The invention discloses a test device of a model for manufacturing rock masses containing interlayers and a test method thereof. The test device of the model for manufacturing the rock masses containing interlayers comprises a semicircular angle device, an upper baffle, a lower baffle, a left side plate, a right side plate, a circular turntable, a core-drilling machine drill bit, a flat plate, a flat plate angle control rod, a fixed screw rod, a base plate, an interlayer model test piece, a U-shaped plate and a guide slot. The test method comprises the following test steps: arranging the rock masses according to an outline central line and fixing the rock masses; manufacturing interlayer materials and casting the model, fastening the test piece, drilling the core, replacing the core-drilling machine drill bit, changing the position of the test piece to drill repeatedly and cutting to obtain the test pieces with different height-diameter ratios or obtain the test pieces with different interlayer inclination angles; then carrying out mechanical test. The test device is simple in structure and suitable for manufacturing the test pieces with different interlayer thicknesses, inclination angles and height-diameter ratios; according to a core-drilling and cutting machining device, by making full use of the existing device, the influence on the mechanical properties of the test pieces caused by different conditions can be analyzed, coring of irregular rock samples taken in the site can be carried out directly, so that the test efficiency is improved and the test time is shortened.

Disclosed is a linear vibrator, the linear vibrator including: a bottom case including a floor plate and first and second elastic units integrally formed with the floor plate, and mutually and oppositely bent from both distal ends facing the floor plate; a stator including a circuit substrate arranged on the floor plate and a coil block electrically connected to the circuit substrate; a trembler including a magnet discretely facing the coil block and a weight securing the magnet; and an upper case coupled to the bottom case to accommodate the stator and the trembler, wherein both lateral surfaces of the trembler facing the first and second elastic units are elastically supported by the first and second elastic units.

Large tanks are built by welding pre-formed plates in operations near the ground. An annular concrete base with extended lifter pads is poured. Floor plates are lifted using lifting nuts, are placed on compacted sand and river gravel and are welded laterally. Peripheral templates are welded to the floor. Nested pre-curved plates are transported vertically. Forklifts move the plates using cleats, yokes and turntables. Pre-curved plates are welded vertically, forming a first ring. A roof is built on and welded to the first ring. The first ring and roof are lifted with self-climbing hydraulic lifters on lifting pillars. Additional rings are assembled in sequences of plate positioning, vertical welding, lowering the above structure using guides and spacers, horizontal welding, lifting, repeating the steps, and finally welding the bottom ring to the floor.

The invention discloses a construction wall spraying device, which comprises a bottom plate, a first threaded rod, a first motor, a lifting mechanism, a first rotating shaft, a first gear, a second gear, a second motor, a biaxial motor, a second Two rotating shafts, the first sprocket, chain, the second sprocket, U-shaped mounting plate, the second threaded rod, the third motor and the nozzle, the present invention is provided with a lifting mechanism, which can adjust the height of the nozzle, and is convenient for different heights The wall is sprayed, and the second motor, the first gear and the second gear are provided. Through cooperation, the steering of the nozzle can be adjusted to facilitate spraying on irregular walls. There are a first sprocket, a chain, a second sprocket and The U-shaped mounting plate drives the nozzle to move up and down through cooperation to spray the wall with uniform spraying and high efficiency. It is equipped with a third motor and a second threaded rod, which drives the nozzle to move the position through cooperation, avoiding back and forth when spraying the wall. Moving the whole device has high efficiency and reduces the labor intensity of workers.

The system and apparatus of the present invention is generally comprised of a non-dedicated, temporarily installed, aircraft observer bubble door, chair, sonotube ejection system, mission electronics LRU rack and workstation assembly which are affixed to the Air Deployment System (ADS) rails, cargo tie down “D” rings, seat belt restraint ring bolt sockets, and litter bar of a host aircraft, thereby precluding the requirement for dedicated airframe modifications. One embodiment of the present invention also utilizes a multi-axis, articulated, foldable chair temporarily installed in conjunction with a segmented or one piece pressurized observer bubble door plug and door retraction system. The door plug assembly is designed to accommodate the simultaneous use of a sonotube stores launch system, a missile defense system, and an observer bubble window. The door plug also accommodates fitment around the envelope of a special mission strut which extends through the interior to the exterior of the host aircraft beneath the door plug's lower periphery. The door plug is also moveably mounted within a temporary retraction rail system which interfaces mechanically to the permanent door retraction rails and the aircraft floor or ADS rail system. When the host aircraft is not equipped with an ADS rail system, the retract rails, chair stanchion, mission electronics racks, and workstation assemblies are mounted to an adaptive floor plate (AFP) which can be modified to interface with various cargo floor “D” rings, or other cargo tie down mechanisms and bolt patterns such that several types of dissimilar aircraft can utilize the subject apparatus either with or without ADS rails installed. Once installed the subject apparatus can be stowed outboard of the fuselage cargo transit envelope to permit use of the ADS rail system in-flight, without affecting normal air drop operations, crew egress, the flight performance envelope, or emergency procedures of the host aircraft.

A two-piece snap-on magazine adapter for a handgun. This magazine adapter provides a relatively continuous surface between the handgun and locked extended length magazine to afford the handgun user with a comfortable grip among other benefits. In the preferred embodiment, the magazine adapter has two snap together pieces: a main body and an end cap. The main body has an interior pocket configuration contoured to capture the magazine floor plate. The main body of the device is then captured by an end cap that locks via a detent mechanism onto the main adapter body. The magazine adapter fits completely around the magazine such that when the magazine is locked into the handgun, the resulting grip provides a smooth, continuous and comfortable fit between the extended length magazine's floor plate and the butt of the handgun's grip. The magazine adapter of the present invention may be adapted to fit a variety of handgun models desirous of using extended length magazines without any modification of the magazine itself.

The present invention relates to the field of stem cell biology, in particular the lineage specific differentiation of pluripotent or multipotent stem cells, which can include, but is not limited to, human embryonic stem cells (hESC) in addition to nonembryonic human induced pluripotent stem cells (hiPSC), somatic stem cells, stem cells from patients with a disease, or any other cell capable of lineage specific differentiation. Specifically described are methods to direct the lineage specific differentiation of hESC and/or hiPSC into floor plate midbrain progenitor cells and then further into large populations of midbrain fate FOXA2+LMX1A+TH+ dopamine (DA) neurons using novel culture conditions. The midbrain fate FOXA2+LMX1A+TH+ dopamine (DA) neurons made using the methods of the present invention are further contemplated for various uses including, but not limited to, use in in vitro drug discovery assays, neurology research, and as a therapeutic to reverse disease of, or damage to, a lack of dopamine neurons in a patient. Further, compositions and methods are provided for differentiating midbrain fate FOXA2+LMX1A+TH+ dopamine (DA) neurons from human pluripotent stem cells for use in disease modeling, in particular Parkinson's disease. Additionally, authentic DA neurons are enriched for markers, such as CD142, and A9 type neuronal cells.

The invention provides an overhanging type scaffold supporting system capable of solving the problems that an overhanging type scaffold can not be supported and has potential safety hazards in the prior art. The overhanging type scaffold supporting system comprises a floor plate and an outer wall body of a building, and a plurality of overhanging beams passing through the outer wall body, wherein each overhanging beam is divided into a cantilever part extending out of the outer wall body and a fixed part fixed on the floor plate, the scaffold is arranged on the cantilever parts, and the length of each fixed part is at least 1.5 times of that of each cantilever part. The invention provides a normalized and standardized overhanging type scaffold supporting system which can be adapt to the construction of the overhanging type scaffold for the outer walls of various high-rise buildings, has the characteristics of factory and standardized fabrication, flexible use, high construction efficiency, reliable installation quality and high safety, and effectively ensures the quality of the construction technology of the overhanging type scaffold for the high-rise buildings.

The present invention is an ammunition magazine, preferably made of a reinforced polymer, utilizing a structurally enhancing ridge, angular guide rails and a follower made to interface with said guide rails to reduce wobble. The preferred embodiment also features a protective cover that distributes forces from the spring to more structurally sound areas of the magazine, thus reducing feed end splay, and an ammunition indication system comprised of at least one window and a noticeable marker on the follower spring. The follower and magazine casing are also designed to interface to prevent the follower from popping out of the feed end and the floor plate of the magazine utilizes a locking plate and sliding relationship between the floor plate, locking plate and magazine to secure the floor plate onto the magazine casing. The cover features built in tools for, among other things, unloading and disassembling the magazine.

The invention relates to an integral two-way partial one-way steel-concrete composite floor and a construction method thereof, belonging to the field of structural engineering. The invention consists of an integral two-way steel main girder, a local one-way steel secondary girder and a concrete slab. The two-way steel main girder is an I-shaped section or a box-shaped section; the local one-way steel secondary beam is an I-shaped section; The upper flanges of main beams and unidirectional steel secondary beams cover the grids between steel beams. The overall two-way partial one-way steel-concrete composite floor of the present invention can fully exert the material characteristics through the combination effect, and realize the force effect of the overall two-way support. On the basis of ensuring the mechanical performance of the structure, the number of nodes is reduced to further facilitate the construction of the steel structure.

The invention discloses a prefabricated part and a semi-prefabricated construction method for a multistory building. The prefabricated part comprises a prefabricated outer wall (6), the prefabricated outer wall (6) comprises a reinforced concrete wall body (61); the middles of the end surfaces of two side edges of the reinforced concrete wall body (61) are provided with a groove (611) respectively; a plurality of exposure steel bars (63) are extended out of the end surfaces of two sides of the reinforced concrete wall body (61); and the plurality of exposure steel bars (63) are fixedly connected with a steel mesh in a cast-in-place bearing horizontal wall (11) which is adjacent to and in the same layer with the exposure steel bars. The semi-prefabricated construction method comprises the following steps of: constructing the prefabricated outer wall and prefabricated floor plates; laying the prefabricated floor plates and pouring concrete on the prefabricated floor plates to form semi-prefabricated floor plates; temporarily fixing the prefabricated outer wall by using a flexible straight bar and a triangular bracket; and pouring the bearing horizontal wall. By the prefabricated part and the semi-prefabricated construction method, the construction efficiency of the multistory building can be obviously improved, the construction cycle is shortened, and the construction cost is reduced.

The invention discloses an improved broadband microstrip antenna unit, which mainly solves the problems of narrow band width, high cross polarization and backward radiation of conventional microstripantennas. The antenna of the invention comprises a radiator (1), a dielectric substrate (2), an upper floor plate (3), a feed structure (5) and a lower floor plate (6). The upper floor plate is positioned between the dielectric substrate and the feed structure, and the lower floor plate is located on the lower surface of the feed structure. The upper floor plate is provided with a transverse gap (4) through etching. The radiator comprises an electric dipole (11) and a magnetic dipole (12). The electric dipole is composed of N pairs of rectangular patches arranged on both sides of the transverse symmetry axis of the transverse gap and horizontally arranged on the upper surface of the dielectric substrate. The magnetic dipole is composed of M metal connectors inside the dielectric substrate.The electric dipole is connected with the upper floor plate through the magnetic dipole, and the magnetic dipole and the electric dipole are arranged perpendicular to each other. The improved broadband microstrip antenna unit is improved in working bandwidth, is reduced in cross polarization and backward radiation, and can be applied to 5G communication and radar systems.

Magazine floor plates have a tubular body defining an elongated passage and having a lower end and an upper end, a floor plate element connected to the lower end, a follower movable within the elongated passage, a spring within the passage having a first end contacting the floor plate element, and having an opposed second end contacting and biasing the follower toward the upper end of the body. Downward force exerted by the spring on the floor plate element retains the floor plate element in an installed position relative to the lower end of the body. The floor plate element may have a width narrower than the elongated passage. The floor plate element may be connected to the lower end of the body by rails on the lower end of the body. The floor plate element may have an upward protrusion.

The invention relates to a light-steel light-concrete structural system and a construction method thereof. The structural system consists of pillars, beams, walls, floor plates and a roof panel; the pillars, the beams, the walls, the floor plates and the roof panel are formed by casting light steel and light concretes in situ; and the light-steel pillars and the light-steel walls are formed by connecting light-steel section bars and connecting sheets, and the floor plates and the roof panel are formed by connecting light steel, connecting sheets and steel meshed sheets. The structural system has light dead weight, good aseismicity, integrity and waterproofness and favorable thermal insulation and sound insulation performances, solves the problems of waterproofing, fireproofing and rust-proofing of the traditional light-steel structure, has the advantages of high industrialized degree, low overall cost, convenient construction and environmental protection, and is suitable for common civil buildings and light industrial factory buildings.

The invention discloses a climbing scaffold system and a construction method. The system is characterized in that the scaffold is arranged outside a wall body, and comprises a support body, a lifting mechanism and overhanging beams, wherein two adjacent floor plates in the wall body respectively protrudes out two overhanging beams, the overhanging beams of the upper-layer floor plate or the lower-layer plate are provided with the lifting mechanism; two sides of the support body are provided with grooves, the end parts of the overhanging beams are inserted into the grooves to form convex-concave fit with the grooves and slide mutually with the grooves; the lifting mechanism is connected with the support body to lift a support. The construction method comprises the following steps: setting the scaffold; dismantling the exposed overhanging beams and the lifting mechanism when the lifting mechanism lifts the support to a certain height and the overhanging beams on the same floor plate are exposed and moving to the upper-layer floor plate separated by one-layer floor plate with the floor plate to fix the dismantled overhanging beams; and finally lifting the support body to the top and dismantling the support body after the complement of construction. By using the invention, major structure construction and exterior decorative construction of high-rise buildings can be performed at the same time, and vertical crossing operation and parallel flow construction can be formed, thus greatly shortening construction period and reducing construction cost.