47results about How to "Good elastic properties" patented technology

An expandable tubular includes a plurality of leaves formed from sheet material that have curved surfaces. The leaves extend around a portion or fully around the diameter of the tubular structure. Some of the adjacent leaves of the tubular are coupled together. The tubular is compressed to a smaller diameter so that it can be inserted through previously deployed tubular assemblies. Once the tubular is properly positioned, it is deployed and coupled or not coupled to a previously deployed tubular assembly. The inventive tubular is useful for all types of wells and boreholes.

An expandable tubular includes a plurality of leaves formed from sheet material that have curved surfaces. The leaves extend around a portion or fully around the diameter of the tubular structure. Some of the adjacent leaves of the tubular are coupled together. The tubular is compressed to a smaller diameter so that it can be inserted through previously deployed tubular assemblies. Once the tubular is properly positioned, it is deployed and coupled or not coupled to a previously deployed tubular assembly. The tubular is useful for all types of wells and boreholes.

A system and method for radiusing and sizing microholes in diesel fuel injectors. A liquid abrasive slurry with rheological properties is used. As the slurry approaches and flows through the microhole, it is at first at a lower viscosity. Subsequently, the slurry is characterized by a high viscosity which enables the use of a flow meter in the slurry flow path which directly and accurately monitors slurry flow rate and mass flow in real time. This allows for the individual slurry processing of nozzles to their specified flow rate in a continuous process.

A tool holder (1), in particular, of the clamping chuck type, is disclosed, the housing portion (5) of which comprises clamping means (9), provided for fixing a shaft (15) of a rotating tool central to a rotational axis (7) of the tool holder (1) and defining a housing opening (13) for said shaft (15). The clamping means (9) can be radially adjusted between a radially-extended release position for the insertion or removal of the shaft (15) and a clamping position, in which the clamping means (9) exert a radial compression seating force on the shaft (15), holding the shaft (15). The clamping means (9) are provided with a clamping surface (17) with a cylindrical contour, which makes a surface contact with the outer circumferential surface (19) of the shaft (15) in the clamping position. The region of the tool holder (1) forming the clamping surface (17) comprises a spiral groove around the rotational axis (7), or a number of annular grooves (21) around the rotational axis (7) at an axial separation from each other, which, viewed in the direction of the rotational axis (7), are connected in one piece between the adjacent turns of the spiral groove or between adjacent annular grooves (21), forming support regions at an axial separation from each other, projecting towards the rotational axis (7), the peak surfaces (27) of which, facing the rotational axis (7), form the cylindrical clamping surface (17).

Method of making a wavy wood element (B) from a wood element (A), wherein the method comprises at least steps (H1) to (H4):(H1) providing a wood element (A), which comprises fibers and lignin on or between said fibers;(H2) heating the wood element (A) to a temperature which is sufficient to soften or melt at least a part of the lignin;(H3) deforming the wood element heated in step (H2) such that a wavy wood element (B) is formed;(H4) cooling the wood element deformed in step (H3); characterized in that the deforming in step (H3) is performed such that the ratio of the wave height to the thickness of the wavy wood element (B) equals or is more than 2:1; wherein the term thickness signifies the shortest distance between an upper side and the respective lower side of the wavy wood element (B), and the term wave height signifies the shortest distance between two imaginary planes which run in parallel to one another between which the wavy wood element (B) may be arranged such that the waves are positioned between said planes; and wherein the wood element (A) consists of unglued wood or unglued wood fibers.

The present invention provides a phase insulator for a stator of a motor, which insulates between stator coils. The stator has plural stator coils inserted in slots in a stator core. The phase insulator insulates stator coils from each other. The phase insulator includes insulating sheet portions and bridge portions. The insulating sheet portions are disposed at both end portions of the stator core for insulating between the coil ends of the stator coils. The insulating sheet portions are made of a first material. The bridge portions connect the insulating sheet portions. The bridge portions are inserted in the slots of the stator core. The bridge portions are made of a second material. The second material has higher elastic characteristics than the first material.

The invention discloses a production process of elastic polyester pongee woven fabric. The polyester pongee woven fabric is prepared by the procedures as follows: 75D high-elastic polyester yarn is woven by a water-jet loom and then subjected to desizing pretreatment, dyeing, scotching drying, impregnation with an antistatic agent, dehydration, re-drying, waterproof and moisture permeable processing, setting and finishing sequentially. Therefore, the produced polyester pongee woven fabric can have good antistatic performance and good moisture permeability on the basis of good handfeel comfort,high wear resistance and good elasticity and can be used for preparing cleanness clothing to be used in a workshop of a plant, and wear comfort is improved by the good moisture permeability.

The present invention relates to a tool holder (1), the housing section (5) of which comprises clamping means (9), provided concentrically with a rotational axis (7) of the tool holder (1) and defining a housing opening (13). The clamping means (9) can be radially adjusted between a release position and a clamping position, in which the clamping means (9) exert a radial compression seating force on a hilt (15) in the clamping position. The clamping means (9) are provided with a clamping surface (17), which makes a surface contact with the outer circumferential surface (19) of the hilt (15) in the clamping position. The region of the tool holder (1) forming the clamping surface (17) comprises a plurality of groove parts, which, viewed in the direction of the rotational axis, are connected in one piece, forming support regions at an axial separation from each other, projecting towards the rotational axis (7), the peak surfaces (27) of which, facing the rotational axis, form the cylindrical clamping surface.

A laminated sheet material comprises an insulating layer having a high thermal coefficient and efficient hydrophobic properties, a wicker layer adjacent the insulating layer having efficient hydrophilic properties, an elastomeric layer adjacent the wicker layer which is substantially impermeable to moisture and has good elasticity. An adhesive having good elastic properties substantially continuously joins the insulating, wicker and elastomeric layers together and is breathable between the insulating and wicker layers. In an alternate embodiment a cosmetic layer is joined to the elastomeric layer.

The present invention relates to an optical sheet used in a liquid crystal display device, and relates to an optical sheet which comprises a resin curing layer made of a curable resin composition comprising metal oxide nanoparticles, and thus is easy to handle and not liable to damage from external shocks, and can prevent reduction in luminance due to damage and at the same time achieve a high refractive index.

The invention relates to an expandable intragastric balloon which is intended to be implanted in the stomach of a patient for the treatment of obesity. The inventive balloon comprises an outer casing (2) which is sufficiently flexible in order to change from a reduced volume configuration to an expanded configuration, thereby imparting the balloon (1) with its functional shape. The balloon is characterised in that it comprises means (3) for forming the outer casing (2), which are structurally integrated into the balloon (1), but which, for the most part, are separate from the outer casing (2). According to the invention, once the balloon (1) has been implanted, the aforementioned forming means (3) can be actuated in order to: (i) exert a sufficient driving pressure on the outer casing (2) such as to force the deployment thereof, and (ii) occupy a sufficient volume inside the outer casing (2) in order to produce the deployment of the outer casing (2) from the reduced volume configuration to the expanded configuration thereof. The invention is suitable for intragastric balloons.

A liquid pump, in particular a water pump, comprises a pump housing, which has a thrust bearing seat, a bearing bolt and a bearing mounted on the bearing bolt. In this case, a thrust washer is arranged between the thrust bearing seat of the pump housing and the bearing. Furthermore, a flexible washer is arranged between the thrust bearing seat and the thrust washer.

The invention provides a metal bipolar plate for a proton exchange membrane fuel battery and an electric pile formed by the metal bipolar plate. The metal bipolar plate is formed through the combination of a cathode unipolar plate and an anode unipolar plate made of thin metal plates, wherein the cathode unipolar plate and the anode unipolar plate are arranged in a back-to-back way, fuel gas cavities (1), cooling medium cavities (3) and oxidant gas cavities (2), which are correspondingly coincided are arranged on both the left sides and the right sides of the plate bodies of the cathode unipolar plate and the anode unipolar plate, flow field zones are arranged in the middles of the plate bodies, and a plurality of arc-shaped bosses and a plurality of arc-shaped grooves, which correspond to each other, are arranged in the flow field zones. The electric pile is formed through the overlapping of a plurality of single batteries which are connected in series, and each single battery consists of the cathode unipolar plate, the anode unipolar plate and a membrane electrode assembly between the cathode unipolar plate and the anode unipolar plate. The great contact of the metal bipolar plate with the membrane electrode assembly is well ensured through the self elastic deformation of the metal bipolar plate. The stress relaxation of the electric pile can be automatically compensated, and clamp force for the normal work of the electric pile can be maintained, so that the performance and the service life of the proton exchange membrane fuel battery are improved and prolonged.

The invention relates to a drive unit for an internal combustion engine, in particular an exhaust gas recirculation valve, comprising a drive element (12), a housing (10) and a spacer element (64), which is prestressed Arranged between the drive element (12) and the housing (10). In order to achieve a complete vibration isolation of the drive element, it is proposed that the housing (10) has a cover (38) on which the fixed receptacle (32) is fastened, said cover (38) abutting axially against the stop (60) abuts on the fixed receiving part (32), wherein the spacer element (64) is arranged radially between the cover (38) and the drive element (12) and is elastically deformed axially on the drive element (12). ) and the cover (38).

A flexible cover window is presented that includes a window substrate and an elastic buffer layer having a single-layer structure or a multi-layer structure. An elastic buffer layer is provided on the rear surface of the window substrate to absorb deformation occurring in the folded portion. The flexible cover window is a glass-based cover window for protecting a foldable, rollable, slidable, or stretchable flexible display. Further, the flexible cover window has an elastic buffer layer on a rear surface of the window substrate to reduce an elongation difference between the window substrate and the display panel, so that delamination or buckling due to micro-deformation at a folded portion of the flexible cover window may be prevented. Accordingly, the service life of the flexible cover window is extended and image distortion on the screen at the folded portion may be prevented.

The invention provides a bionic spider silk polyamino acid bioelastomer material, which is an ABA triblock copolymer composed of a hard segment A block and a soft segment B block, wherein , the A block has a β-sheet structure, and the A block is at least one of poly-L-alanine, poly-L-glycine, L-alanine and L-glycine copolymer, the The B block is at least one of polyethylene oxide, polypropylene oxide, polycaprolactone, polytetrahydrofuran, polydimethylsilane, and hydrogenated polybutadiene.