95results about How to "Avoid bowing" patented technology

A filter pack includes a filter construction and a sealing system for sealing the construction within a duct or housing. The filter construction has first and second opposite flow faces and is configured for a straight-through flow. The sealing system includes a frame construction and a compressible seal member. The compressible seal member is molded around a portion of the frame construction. The compressible seal member is sufficiently compressible to form a radial seal between and against the frame construction and a surface of a housing when the filter pack is inserted within the housing.

A filter pack includes a filter construction and a sealing system for sealing the construction within a duct or housing. The filter construction has first and second opposite flow faces and is configured for a straight-through flow. The sealing system includes a frame construction and a compressible seal member. The compressible seal member is molded around a portion of the frame construction. The compressible seal member is sufficiently compressible to form a radial seal between and against the frame construction and a surface of a housing when the filter pack is inserted within the housing.

The present invention provides a die attach film-provided dicing tape, which includes a dicing tape, a supporting tape and a die attach film laminated in this order, wherein the supporting tape is a tape having a self-rolling peelability, and a process for producing a semiconductor device by using the die attach film-provided dicing tape.

A filter pack includes a filter construction and a sealing system for sealing the construction within a duct or housing. The filter construction has first and second opposite flow faces and is configured for a straight-through flow. The sealing system includes a frame construction and a compressible seal member. The compressible seal member is molded around a portion of the frame construction. The compressible seal member is sufficiently compressible to form a radial seal between and against the frame construction and a surface of a housing when the filter pack is inserted within the housing.

A method of providing a surface layer or structure on a substrate. The method comprises: a) ink jet printing spaced first segments of the surface layer or structure material on the substrate and drying or curing the first segments; and b) ink jet printing further material segments in the gaps between the first segments and drying or curing the further segments, the material and / or curing and drying conditions being different to those in step (a), all the segments, after drying or curing, forming a surface layer or structure, wherein the segment material and / or curing and drying conditions are chosen so as to control the mechanical properties of the surface layer.

An engine starting system for a gas turbine engine is provided, the engine starting system comprising: a gas turbine engine including rotational components comprising an engine compressor, an engine turbine, and a rotor shaft operably connecting the engine turbine to the engine compressor, wherein each rotational component is configured to rotate when any one of the rotational components is rotated; an electro-pneumatic starter operably connected to at least one of the rotational components, the electro-pneumatic starter being configured to rotate the rotational components; an electric drive motor operably connected to the electro-pneumatic starter, the electric drive motor being configured to rotate the rotational components through the electro-pneumatic starter; and a motor controller in electronic communication with the electric drive motor, the motor controller being configured to command the electric drive motor to rotate the rotational components at a selected angular velocity for a selected period of time.

A reusable architectural wall is provided which provides a cost-effective space-dividing wall structure formed of internal support rails joined by a lightweight, cost effective facing panel on each panel side, which preferably is formed of standard architectural materials such as gypsum board, R-board and the like. The wall is structurally rigid, field cuttable, installable horizontally or vertically and has a substantial acoustic reduction, cable carrying capacity, and HVAC capability.

An apparatus for installing a frame and related appurtenances incorporating, among other elements, four corner members slidably and releasably joined with height and width adjusters. The apparatus may be used in the plurality of assembly activities that require the assembly of a frame, including, but not limited to, cabinet making, furniture making, window framing, trimming, and installation, and door framing, trimming, and installation. Each corner member includes two sections that are substantially orthogonal to one another and may be foldable so that they are substantially parallel when in the folded position. Additionally, each member may be formed with a trim piece mounting ledge to provide a surface to abut a frame trim section to assure a uniform reveal, and stop, hinge, and strike templates. The apparatus frame members may be formed with a unique thickness, or may include trim setback members, to accommodate varying jamb material thickness and the desired reveal.

A dust cover receiving structure of a hydraulic shock absorber in which a seat rubber is interposed between a suspension spring and a spring seat. The seat rubber has a spring receiving portion which is arranged between the suspension spring and the spring seat, a centering portion which is fitted to a damper tube and guides an end portion of a dust cover in such a manner as to align the dust cover with an axial center of the damper tube, and a cover receiving portion which is provided between the spring receiving portion and the centering portion, and which receives an end surface of the dust cover.

A filter cartridge which is environmentally friendly in that it is made up of components which are all incinerateable. The ends of a filter element are sealed using potting compound and plastic endcaps. The upper endcap, which is closed, has a pressure relief aperture associated therewith to prevent bowing. In a plugged filter condition the high-downward pressure introduced on the upper endcap is compensated by providing the cartridge with centering ribs which bottom on an associated ledge in the housing to provide a positive stop for the top endcap, preventing it from being driven down into and through the filter element. Rubber gaskets are associated with the respective endcaps, and are reliably secured to the endcaps by being snap fit into grooves molded into the plastic of the endcaps. The lower endcap utilizes a simple radial seal gasket which is both highly effective and also positioned to avoid structural crushing forces on the cartridge. A keying system prevents the installation of improper filters.

A game apparatus including at least one rebound surface and flexible material dividing the rebound surface into at least two play areas includes a rebound surface mounting frame and a flexible material mounting frame coupled to hold the frames in substantially fixed relationship but allow movement of one frame in relation to the other for stress relief between the frames. At least one cross member supports the flexible material between play areas and reinforces the flexible material mounting frame. The individual play areas are formed by separate preassembled flexible material units that are mounted in the flexible material mounting frame and then secured together to for the individual play areas. The flexible material mounting frame includes walk bars and also supports basket assemblies used in game play.

A method and apparatus is disclosed for smoothly inserting a fuel rod loader through the skeleton of a fuel cell and then for pulling an attached fuel rod into the fuel rod skeleton while keeping the fuel rod under constant tension and preventing the bowing of the fuel rod. The pulling mechanism comprises a smooth collet with a smooth bullet end cap for guiding the puller mechanism into and through the skeleton where the bullet end cap is removed and the fuel rod is attached with a unique ball and slide mechanism actuated by a long puller rod that grabs the end of the fuel rod by a forward motion of the puller rod and is easily removed from the fuel rod by reversing this motion once the fuel rod is in place.

The invention provides a plasma etching method capable of suppressing bowing of an opening of the object to be etched, and solving the lack of opening at a high aspect ratio portion in deep hole processing having a high aspect ratio. A plasma etching method for etching an object to be etched in a plasma etching apparatus using a mask patterned and formed on the object to be etched comprises sequentially performing a first step for etching the mask while attaching deposits on a side wall of an opening close to a surface of the mask pattern of the mask using fluorocarbon gas CxFy (x=1, 2, 3, 4, 5, 6, y=4, 5, 6, 8), and a second step for etching the object to be etched while removing the deposits attached to the side wall of the opening close to the surface of the mask pattern of the mask using fluorocarbon gas.

A connector capable of being mounted onto a substrate is disclosed. Such a connector may include a housing, and a contact mounted within the housing. The contact may include a body, terminal pins extending from a first edge of the body, contact beams extending from a second edge of the body, and a flared portion. The edges of a first contact beam and a second contact beam of the contact beams may be positioned proximate respective adjacent surfaces of the housing. The flared portion may also be positioned proximate a respective adjacent surface of the housing. The relationship between the first contact beam and its respective adjacent surface, the relationship between the second contact beam and its respective adjacent surface, and the relationship between the flared portion and its respective surface may inhibit bowing of the body of the contact when the connector is mounted on the substrate.

To provide a semiconductor device capable of preventing the bowing of the substrate, and having a semiconductor layer of a III-V group compound of a nitride system with excellent crystallinity. The semiconductor layer of the III-V group compound of the nitride system whose thickness is equal to or less than 8 mum, is provided onto a substrate made of sapphire. This reduces the bowing of the substrate due to differences in a thermal expansion coefficient and a lattice constant between the substrate and the semiconductor layer of the III-V group compound of the nitride system. An n-side contact layer forming the semiconductor layer of the III-V group of the nitride system has partially a lateral growth region made by growing in a lateral direction from a crystalline part of a seed crystal layer. In the lateral growth region, dislocation density restricts low, therefore, regions corresponding to the lateral growth region of each layer formed onto the n-side contact layer has excellent crystallinity.

A spinal implant device is provided comprising a body structure with a central cavity and a movable lid configured to cover the central cavity. The movable lid is configured to be opened to pack a material in the central cavity. The movable lid can be connected to the body structure with a moveable joint. The spinal implant device can include a compressible feature. A method for treating the spine is provided comprising opening a movable lid of a spinal implant device, packing a material in a central cavity of a spinal implant device, closing the movable lid, and inserting the spinal implant device between vertebrae.

An inflatable mattress assembly having a peripheral frame disposed around an upper periphery of the mattress forming an upper tubular periphery that provides a contiguous support surface. The peripheral frame is secured along two seams so that it is flat, smooth, and immovable. The seam where the peripheral frame is connected to the side layer creates a circumferential, horizontal indentation or groove giving the mattress an appearance that mimics a traditional two-layered pillow-top mattress. The components of the inflatable mattress assembly are in fluid communication with each other.

An engine starting system for a gas turbine engine is provided. The engine starting system comprising: a gas turbine engine including rotational components comprising an engine compressor, an engine turbine, and a rotor shaft operably connecting the engine turbine to the engine compressor, wherein each rotational component is configured to rotate when any one of the rotational components is rotated; a variable frequency generator operably connected to at least one of the rotational components, the variable frequency generator being configured to rotate the rotational components; and a motor controller in electronic communication with the variable frequency generator, the motor controller being configured to command the variable frequency generator to rotate the rotational components at a selected angular velocity for a selected period of time.

A seat stretcher that can be positioned in the seat box of a sofa to maintain the structural integrity of the seat box against the compressive force of the seat springs. The seat stretcher mounts without fasteners and without additional hardward. In embodiments, the seat stretcher has an offset portion that can be rotated to create space within the seat box for storing cushions or legs within the cavity defined by the seat box.

The instant invention provides a kit for assembly of a raised garden bed. The raised garden bed includes panel members, corner connector members, and linear connector members constructed of a polymeric material and adapted to be snapped together into a substantially rigid raised garden bed without the need for special tools or excessive strength. A tongue and groove arrangement is also provided to allow for panel member stacking for increased garden bed height. The components of the kit are constructed and arranged to be packed into a relatively small profile for shipping and transport and are generally light enough to be loaded and unloaded without the need for equipment such as a forklift or pallet jack.

A semiconductor device includes a semiconductor substrate having an etch target layer provided on the surface thereof, and a hard mask layer formed over the etch target layer and including silicon, wherein the hard mask layer includes a dual structure including a first area and a second area having a larger etch rate than the first area, in order to increase an etching selectivity of the hard mask layer.

The invention discloses a perpendicular stretching method and equipment for an optical fiber perform. The method comprises the steps that a large-diameter optical fiber perform is clamped, pretreatment starts to be performed on the optical fiber perform, and key parameter values in the stretching process are obtained in advance; then, an upper clamping device and a lower clamping device are controlled to synchronously rotate, the large-diameter optical fiber perform is heated to a semi-molten state through a heating device, an upward moving velocity V<3> is applied to the large-diameter optical fiber perform in the perpendicular direction through the upper clamping device, meanwhile, the heating device moves at an upward velocity V<2>, and the outer diameters obtained before and after stretching meet the relation V<3>*the square of D<1>=V<2>*(the square of D<1>-the square of D<2>). By means of the perpendicular stretching method and equipment for the optical fiber perform, the hysteretic nature in a common real-time feedback adjusting mode can be effectively avoided, the influence of the geometric dimension of the large-diameter optical fiber perform on a stretching result can be reduced to the maximum degree, the stretching control precision is improved, and the machining efficiency is further improved.