32results about How to "Reduce profile height" patented technology

A fuel filter and vapor separator arrangement having at least one layer of liquid fuel permeable material defining at least one substantially enclosed cavity. The permeable material has at least one opening to provide fluid communication of liquid fuel within the cavity with an inlet of a high pressure fuel pump outside the cavity. A jet pump and / or fuel vapor vent is arranged relative to the cavity to facilitate the elimination of fuel vapor flowing to the high pressure fuel pump.

The invention is a joint cover assembly for covering a gap adjacent an edge of a panel that covers a sub-surface, and a method of covering such a gap. The assembly can be installed to be a flush or near-flush arrangement with adjacent flooring elements.

A runner apparatus is disclosed herein that is used alone or in combination with or incorporated into an existing torque wrench. The runner apparatus has a motor positioned offset from end operatively engaging a threaded member so that the runner apparatus or runner apparatus-torque wrench combination has a profile height that allows it to be positioned in confined spaces that are relatively small.

An airfoil blade (2) of a bearingless rotor of a helicopter. Said airfoil blade (2) has a pitch axis from a tip end to a root end and said root end is provided with junction means for a separable junction arrangement of said airfoil blade (2) with a flexbeam head (13), and a control cuff (4, 22). Said junction arrangement is mechanical with removable fasteners respectively removable connecting said root end of said airfoil blade (2) to said control cuff (4, 22) and said flexbeam head (13). Said root end comprises at least two openings (7, 8) being asymmetric with regard to said pitch axis.

A runner apparatus is disclosed herein that is used alone or in combination with or incorporated into an existing torque wrench. The runner apparatus has a motor positioned offset from end operatively engaging a threaded member so that the runner apparatus or runner apparatus-torque wrench combination has a profile height that allows it to be positioned in confined spaces that are relatively small.

The invention relates to a multi-bit quantized digital phased array antenna. The antenna comprises a plurality of antenna sub-arrays arranged in a matrix, and a plurality of feed structure layers arranged under the antenna sub-arrays; each feed structure layer feeds a plurality of adjacent antenna sub-arrays; each antenna sub-array only receives feed of one feed structure layer; the antenna sub-array comprises a 180-degree phase shift unit layer, a 90-degree phase shift unit layer and a 45-degree phase shift unit layer from top to bottom in sequence, and the 180-degree phase shift unit layer and the 90-degree phase shift unit layer as well as the 90-degree phase shift unit layer and the 45-degree phase shift unit layer are connected in sequence through respective metal through hole structures. According to the invention, three switch phase shifters (the radiation layer can realize a phase shift function at the same time) are integrated in an up-and-down stacking and cascading manner, so that 3-bit quantized digital phase control is realized, and the cascading loss is effectively reduced.

An electronic circuit module includes a circuit board, electronic components, a burying layer, and a conductive film. The circuit board includes a first principal surface on which first electrodes are provided, a second principal surface on which second electrodes including grounding electrodes are provided, and a side surface connecting the first principal surface and the second principal surface. The electronic components are connected to the first electrodes. The burying layer is provided on the first principal surface of the circuit board with the electronic components buried therein. The conductive film is connected to the grounding electrodes. The outer surface of the burying layer includes markings with protruding shapes with respect to the outer surface of the burying layer. The conductive film covers the outer surface of the burying layer.

An aerodynamic blade attachment (1) for a bearingless rotor, particularly a main rotor, of a helicopter, comprising: an airfoil blade (2) having a tip end and a root end and having a pitch axis from said tip end to said root end; a flexbeam (3); a control cuff (4, 22) enclosing and extending along said flexbeam (3) and a separable junction arrangement between said flexbeam (3), said control cuff (4) and said root end of said airfoil blade (2). Said junction arrangement is mechanical between said flexbeam (3), said control cuff (4) and said root end of said airfoil blade (2). Removable fasteners (5, 6) connect said root end of said airfoil blade (2) and said control cuff (4) with said flexbeam (3). Said junction arrangement comprises fairing means (10, 27, 28, 31, 32 and 39) encompass the removable fasteners (5, 6) and said flexbeam (3).

The invention discloses a nested mounting structure of a Satcom-on-the-move (SOTM) satellite antenna. The nested mounting structure comprises a first mounting structure having a thin-walled bearing 1and a synchronous pulley 1, wherein a polarizing plate is mounted on the synchronous pulley 1; a second mounting structure having a thin-walled bearing 2 and a synchronous pulley 2, wherein a pitchingplate is mounted on the synchronous pulley 2; and a third mounting structure having a thin-walled bearing 3 and a synchronous pulley 3, wherein an azimuth plate is mounted on the synchronous pulley 3. The synchronous pulley 1 is fixed to the outer ring of the thin-walled bearing 1. The synchronous pulley 2 is fixed to the inner ring of the thin-walled bearing 1 and the outer ring of the thin-walled bearing 2. The synchronous pulley 3 is fixed to the inner ring of the thin-walled bearing 2, and the outer ring of the thin-walled bearing 3. The inner ring of the thin-walled bearing 3 is fixed toa bottom ring seat. The overall profile height of the SOTM satellite antenna mounted by the nested mounting structure can be reduced to below 10CM which is below one-third of that in the prior art, thereby utilizing the space to the utmost extent.

The invention relates to a coupled feeding inverted F antenna which comprises a bottom plate, an insulating cover and an antenna body. The antenna body is sealed and packed on the bottom plate through the insulating cover. The antenna body comprises a left radiating body and a right radiating body, wherein the left radiating body and the right radiating body are oppositely and symmetrically arranged. The outer lateral edge of a left radiator is supported by the bottom plate in an insulating mode, a coupled feeding piece supported by a feeding rod is arranged under the middle of the left radiator, the coupled feeding piece and the left radiator are arranged and coupled in parallel, the feeding rod is connected with a feeding opening under the bottom plate, and the inner lateral edge of the left radiator is supported by the bottom plate through a ground connection column and penetrates through the bottom plate to be outwards connected with the ground. The outer lateral edge of a right radiator is supported by the bottom plate in an insulating mode, a coupled ground connection piece supported by a ground connection rod is arranged under the middle of the right radiator, the coupled ground connection piece and the right radiating body are coupled and arranged in parallel, the ground connection rod is connected with a ground connection opening under the bottom plate, and the inner lateral edge of the right radiator is supported by the floor through the ground connection column.

An aerodynamic blade attachment (1) for a bearingless rotor, particularly a main rotor, of a helicopter, comprising: an airfoil blade (2) having a tip end and a root end and having a pitch axis from said tip end to said root end; a flexbeam (3); a control cuff (4, 22) enclosing and extending along said flexbeam (3) and a separable junction arrangement between said flexbeam (3), said control cuff (4) and said root end of said airfoil blade (2). Said junction arrangement is mechanical between said flexbeam (3), said control cuff (4) and said root end of said airfoil blade (2). Removable fasteners (5, 6) connect said root end of said airfoil blade (2) and said control cuff (4) with said flexbeam (3). Said junction arrangement comprises fairing means (10, 27, 28, 31, 32 and 39) encompass the removable fasteners (5, 6) and said flexbeam (3).

A low-sidelobe plate array antenna includes a radiation layer and a feed layer. The radiation layer is superimposed on the feed layer and includes a first plate and a radiation array disposed on the first plate. The radiation array is formed by n2 radiation units which are distributed in 2(k-1) rows and 2(k-1) columns. Each radiation unit in the radiation layer is constituted by two first radiation assemblies and two second radiation assemblies. Each first radiation assembly comprises a first rectangular bar, a first rectangular cavity, a second rectangular cavity and a third rectangular cavity. The first rectangular cavity, the second rectangular cavity and the third rectangular cavity in the first radiation assembly are stacked in presence of an azimuth deviation to form a three-layer coupled structure, and the first rectangular bar located in the first rectangular cavity can better restrain cross polarization and reduce the sidelobe.

The invention discloses a broadband ultra-low profile dual polarized antenna. Comprising an antenna housing layer, a four-ridge opening waveguide array layer, an x-axis polarization suspended strip line feed network layer, an electromagnetic wave polarization selection waveguide layer, a y-axis polarization suspended strip line feed network layer and a bilateral double-ridge waveguide resonant cavity layer which are sequentially stacked from top to bottom. According to the dual-linearly-polarized flat satellite antenna, the working bandwidth of the dual-linearly-polarized flat satellite antenna is widened, 34% of center bandwidth (FBW) is achieved in microwave and millimeter wave bands, the contour height of the antenna is reduced to be smaller than 25 mm, and the radiation efficiency of the antenna unit reaches 92% or above.

A broadband panel array antenna includes a polarization layer, a radiating layer and a feed layer which are sequentially stacked from top to bottom. The feed layer is used for converting a single path of TE10 mode signals into a plurality of paths of same-power in-phase TE10 mode signals and transmitting the plurality of paths of TE10 mode signals to the radiating layer. The radiating layer is used for radiating the plurality of paths of TE10 mode signals from the feed layer to a free space. The polarization layer is used for rotating the polarization direction of an electric field generated by the radiating layer to reduce the side lobe in an E-plane direction diagram and an H-plane direction diagram. The broadband panel array antenna has the advantages of being low in side lobe, high in gain and efficiency, and low in machining cost.

A low-sidelobe plate array antenna includes a radiation layer and a feed layer. The radiation layer is superimposed on the feed layer and includes a first plate and a radiation array disposed on the first plate. The radiation array is formed by n2 radiation units which are distributed in 2(k-1) rows and 2(k-1) columns. Each radiation unit in the radiation layer is constituted by two first radiation assemblies and two second radiation assemblies. Each first radiation assembly comprises a first rectangular bar, a first rectangular cavity, a second rectangular cavity and a third rectangular cavity. The first rectangular cavity, the second rectangular cavity and the third rectangular cavity in the first radiation assembly are stacked in presence of an azimuth deviation to form a three-layer coupled structure, and the first rectangular bar located in the first rectangular cavity can better restrain cross polarization and reduce the sidelobe.

An airfoil blade (2) of a bearingless rotor of a helicopter. Said airfoil blade (2) has a pitch axis from a tip end to a root end and said root end is provided with junction means for a separable junction arrangement of said airfoil blade (2) with a flexbeam head (13), and a control cuff (4, 22). Said junction arrangement is mechanical with removable fasteners respectively removable connecting said root end of said airfoil blade (2) to said control cuff (4, 22) and said flexbeam head (13). Said root end comprises at least two openings (7, 8) being asymmetric with regard to said pitch axis.

The invention belongs to the technical field of wireless communication and antennas, and provides a novel low-profile dual-polarization base station antenna which structurally comprises a metal ring printed on the periphery of a dielectric substrate, a square-structure metal floor printed in the middle of the dielectric substrate, four square metal parasitic units printed on the front face of the dielectric substrate, two coaxial lines, a feed network connected with thecoaxial lines and a novel artificial magnetic conductor. Four square metal parasitic units in the antenna radiation structure are printed on the front surface of an upper dielectric substrate, a metal ring and a square metal floor are printed on the front surface of a lower dielectric substrate, a metal microstrip line connected with a coaxial line is printed on the back surface of the lower dielectric substrate, and a novel artificial magnetic conductor structure is loaded below an antenna radiation body. The antenna is low in height, large in resonance bandwidth, stable in gain, stable in half-power lobe width and high in isolation degree, and can be applied to a low-profile 2G / 3G / 4G base station antenna scene.

The invention relates to a scaffolding system with at least one scaffold decking (30). The scaffold deckings (30) preferably have identical fittings (10) which are connected to decking profiles (32) of different heights, in particular in an identical manner. Particularly preferably, the scaffolding system has at least two scaffolding deckings (30), each having identical fittings (10) but decking profiles (32) with different maximum heights (H32), wherein further preferably the length (L32) of the decking profile (32) with lower maximum height (H32) is shorter than for the decking profile with higher maximum height (H32). In a further preferred embodiment of the invention, the scaffolding system comprises at least three scaffold decks (30), each having identical fittings (10) but decking profiles (32) with different maximum heights (H32), wherein further preferably the decking profiles (32) are of different lengths and have greater maximum heights (H32) with increasing length (L32).

Embodiments of a cabin outflow valve having one or more laterally-tapered sealing surfaces are provided, as are cabin pressure controls system including cabin outflow valves. In one embodiment, the cabin outflow valve includes a frame and a first door, which is pivotally coupled to the frame and which is rotated by an actuator between open and closed positions. The first door includes, in turn, a torque input point at which the actuator applies a closing force when rotating the first door into a closed position. A laterally-tapered sealing surface extends along a lateral axis of the cabin outflow valve and has a profile height decreasing with increasing proximity to the torque input point. The laterally-tapered sealing surface helps to ensure the formation of a complete lateral seal when in the first door is rotated into the closed position to significantly reduce or eliminate leakage through the cabin outflow valve.

In a high frequency filter, a multilayer structure includes a plurality of insulator layers, a first transmission line transmits an input signal, and a second transmission line is electromagnetic coupled with the first transmission line on the same insulator layer and transmits an output signal. A conductor layer defines capacitors with the first transmission line and the second transmission line with the insulator layer in between. A dielectric constant of the insulator layer that comes in contact with the first transmission line and the second transmission line is higher than a dielectric constant of an insulator layer other than the insulator layer.

The invention discloses a side punching die. The side punching die comprises an upper die panel, a transfer panel, a driving block, a side punching male die, a guide panel, a pressure panel, an insert, a lower die panel, a lower die insert and a cushion block, wherein the transfer panel is fixed to the bottom of the upper die panel; the upper end of the driving block is fixed to the transfer panel, and the lower end of the driving block is a bevel; the side punching male die is fixed to the bevel; the side punching male die can be driven by the driving block to punch holes in workpieces; the guide panel comprises a top panel and an inclined panel; the top panel is fixed to the transfer panel, the inclined panel is provided with a guide hole, and the guide hole is matched with the side punching male die; the pressure panel is fixed to the transfer panel; the insert is fixed to one side of the pressure panel and matched with the inclined panel; and the lower die insert is fixed to the lower die panel; the cushion block is fixed to the lower die insert and used for limiting the guide panel. The side punching die provided by the invention is used for side punching on punched panels, guiding is conducted by arranging the guide panel on the transfer panel, and the side punching die is driven through the driving block to complete side punching on the panels. Compared with the prior art, the occupied space is obviously reduced, and the development cost and storage space of the die are reduced.

The invention provides a dual-polarized ceiling antenna which comprises a reflecting plate, at least three horizontally-polarized antenna radiating elements which are uniformly distributed around the periphery of the upper surface of the reflecting plate, a vertically-polarized antenna radiating element which is arranged in the center of the upper surface of the reflecting plate, a horizontally-polarized antenna power division network used for enabling the horizontally-polarized antenna radiating elements to carry out in-phase consistent feeding, a first feeder and a second feeder, wherein the horizontally-polarized antenna power division network is arranged on the lower surface of the reflecting plate, each horizontally-polarized antenna radiating element is electrically connected with the horizontally-polarized antenna power division network, the first feeder is electrically connected with the horizontally-polarized antenna power division network, and the second feeder is electrically connected with the vertically-polarized antenna radiating element. The dual-polarized ceiling antenna has the advantages of high radiant gain, uniform signals, reasonable directionality, high isolation and the like; and meanwhile, the height of an antenna outline can be reduced.

An electronic circuit module includes a circuit board, electronic components, a burying layer, and a conductive film. The circuit board includes a first principal surface on which first electrodes are provided, a second principal surface on which second electrodes including grounding electrodes are provided, and a side surface connecting the first principal surface and the second principal surface. The electronic components are connected to the first electrodes. The burying layer is provided on the first principal surface of the circuit board with the electronic components buried therein. The conductive film is connected to the grounding electrodes. The outer surface of the burying layer includes markings with protruding shapes with respect to the outer surface of the burying layer. The conductive film covers the outer surface of the burying layer.

The invention discloses a low-profile antenna. The low-profile antenna comprises a parallel plate waveguide and a slit radiation layer. The thickness of a lower substrate of the parallel plate waveguide increases linearly so that an inclined surface is formed inside the parallel plate waveguide. The slit radiation layer covers an upper substrate of the parallel plate waveguide. The parallel platewaveguide is used for feeding the slit radiation layer. The low-profile parallel plate waveguide is adopted and the slit radiation layer is formed on the parallel plate waveguide, so the contour height of the antenna is reduced and the antenna has a lower profile. The inclined surface is formed inside the parallel plate waveguide, so the amplitude of gain attenuation is reduced when the scanning angle of the antenna changes.

The invention relates to a digital phased array antenna with multi-bit quantization, comprising a plurality of antenna sub-arrays arranged in a matrix, and a plurality of feed structure layers arranged under the antenna sub-array, each of the feed structure layers To feed multiple adjacent antenna sub-arrays, each antenna sub-array only receives the feed from one feed structure layer, and the antenna sub-arrays include 180° phase shift unit layers from top to bottom, 90° phase shift The unit layer and the 45° phase shift unit layer, the 180° phase shift unit layer and the 90° phase shift unit layer, the 90° phase shift unit layer and the 45° phase shift unit layer are sequentially connected through respective metal via structures. The present invention integrates three switch phase shifters (the radiation layer can also realize the phase shift function at the same time) by stacking up and down and cascading, which not only realizes the phase control of 3-bit quantized numbers, but also effectively reduces the cascading loss.

The invention relates to a coupled feeding inverted F antenna which comprises a bottom plate, an insulating cover and an antenna body. The antenna body is sealed and packed on the bottom plate through the insulating cover. The antenna body comprises a left radiating body and a right radiating body, wherein the left radiating body and the right radiating body are oppositely and symmetrically arranged. The outer lateral edge of a left radiator is supported by the bottom plate in an insulating mode, a coupled feeding piece supported by a feeding rod is arranged under the middle of the left radiator, the coupled feeding piece and the left radiator are arranged and coupled in parallel, the feeding rod is connected with a feeding opening under the bottom plate, and the inner lateral edge of the left radiator is supported by the bottom plate through a ground connection column and penetrates through the bottom plate to be outwards connected with the ground. The outer lateral edge of a right radiator is supported by the bottom plate in an insulating mode, a coupled ground connection piece supported by a ground connection rod is arranged under the middle of the right radiator, the coupled ground connection piece and the right radiating body are coupled and arranged in parallel, the ground connection rod is connected with a ground connection opening under the bottom plate, and the inner lateral edge of the right radiator is supported by the floor through the ground connection column.

The invention provides an antenna element having a feed unit, a first radiation unit and a second radiation unit, wherein the feed unit includes two differential feed circuits and four grounding ends. Each differential feed circuit includes an input end and two output ends. The first radiation unit includes a first radiation body. The second radiation unit includes four second radiation bodies and four grounding elements. According to the antenna element provided by the invention, through feeding of the first radiation body and the second radiation bodies in a coupled feeding manner, the number of solder joints can be reduced; and through arrangement of the second radiation bodies extending in a serpentine form, the profile height of the antenna element can be reduced and the requirements of customers on miniaturization of a base station are met.

A lateral spine implant has a lateral spine cage and an associated lateral spine plate with one or more folding vertebral attachment arms, each arm configured for attachment to vertebral bone, The ability of the one or more arms to fold allows the lateral spine plate to be inserted / implanted at a lower profile height than traditional lateral spine plates. The lateral spine plate is meant to be used at times of intended or unintended compromise of the anterior longitudinal ligament (ALL) to prevent interbody cage migration, but may be adapted for any lateral plating application. Once expanded, each attachment arm is configured to receive a bone screw for securing the attachment arm to a vertebra, the bone screw retained by rotating cam lock nuts of the attachment arm.