174results about How to "Maintain stiffness" patented technology

An apparatus having a member that revolves about a remote center of motion (RCM) and a base link coupled to a mounting fixture. A first and second link are pivotably coupled to the member at respective distances from the RCM and are translatable relative to the base link along a first direction, at a fixed ratio of displacement. The ratio of respective distances equals a fixed ratio of displacement. The apparatus has a translational motion generator for a first and second element along parallel opposing directions. The translational motion generator is disposed on the first link and enables motion parallel to the first direction. The base link is fixed in position, the first element is fixed to the base link and the second element is fixed to the second link, such that the first and second link may translate relative to the base link with fixed ratio of displacement.

The present invention discloses a disposable scrubbing product for use in household cleaning or personal care applications. In one embodiment, the present invention is directed to a cleaning tool including a handle and a rigid base to which the scrubbing product of the present invention may be attached to form a convenient cleaning tool. The scrubbing product of the invention is a multi-layer laminate product and generally includes at least two distinct layers, an abrasive layer and an absorbent fibrous layer such as a layer tissue made from papermaking fibers, a layer of coform, an airlaid web, or combinations thereof. The abrasive layer is formed primarily of polymeric fibers in a disordered or random distribution as is typical of fibers deposited in meltblown or spunbond processes so as to form an open, porous structure. In one embodiment, the abrasive layer comprises multifilamentary aggregate fibers. In one embodiment, the absorbent fibrous layer is an uncreped, through dried paper web.

A drill assembly and method for reducing plunge of a drill bit upon breaking through a workpiece. The drill assembly contains a motor to advance and retract the drill bit, the motor is controlled by a control unit in a feedback loop to achieve a desired stiffness. The control unit determines when the drill bit breaks through the workpiece and stops or retracts the movement of the drill bit.

An improved needle assembly is provided. A distal portion of the needle can be formed of a first material which does not interfere with MRI imaging of a tissue receiving port disposed in the distal needle portion. A proximal needle portion can be formed of a second, different material. The proximal needle portion can provide strength and stiffness.

The present invention discloses a disposable cleaning product for use in household cleaning or personal care applications. The cleaning product of the invention is a multi-layer laminate product and may include at least two distinct layers, an abrasive layer and an absorbent layer. The absorbent layer contains a sponge-like member optionally in combination with a plurality of cellulosic fibrous webs. The sponge-like member can be made from various materials. For example, in one embodiment, the sponge-like member comprises one or more layers of a spunbond web containing crimped, bicomponent filaments.

Apparatus comprising a member (6) arranged to revolve about a remote centre of motion (O) and a base link (3) coupled to a mounting fixture (1). A first link (4) and a second link (5) are pivotably coupled to the member at respective distances (L1, L2) from the remote centre of motion (O) and are translatable relative to the base link (3) along a first direction and at a fixed ratio of displacement. The ratio of said respective distances equals said fixed ratio of displacement, enabling the member (6) to revolve about the remote centre of motion. The apparatus is characterised in that it comprises means (7) for generating translational motion of a first element (37) and of a second element (57) along parallel but opposite directions. The means for generating translational motion is provided on the first link (4) and is arranged to provide motion parallel to the first direction. The base link is fixed in a position, the first element (37) is fixed to the base link (3) and the second element (57) is fixed to the second link (5), such that generation of said translational motion of the first element (37) and of the second element (57) enables the first link (4) and the second link (5) to translate relative to the base link (3) with said fixed ratio of displacement.

An improved needle assembly is provided. A distal portion of the needle can be formed of a first material which does not interfere with MRI imaging of a tissue receiving port disposed in the distal needle portion. A proximal needle portion can be formed of a second, different material. The proximal needle portion can provide strength and stiffness.

A drill assembly and method for reducing plunge of a drill bit upon breaking through a workpiece. The drill assembly contains a motor to advance and retract the drill bit, the motor is controlled by a control unit in a feedback loop to achieve a desired stiffness. The control unit determines when the drill bit breaks through the workpiece and stops or retracts the movement of the drill bit.

A micro-flexure is provided for achieving secondary actuation in an actuator of a disk drive. The micro-flexure is a separate element which attaches to a standard flexure. A slider mounts to the micro-flexure. Piezoelectric elements attach to the micro-flexure to provide the motive force for displacing the micro-flexure during secondary actuation. The secondary actuation is thereby achieved by isolating movement at the slider.

The present invention discloses a disposable meltblown scrubbing product for use in household cleaning or personal care applications and an abrasive aggregate fiber which may be utilized in the scrubbing product. The meltblown web is formed primarily of polymeric fibers in a disordered or random distribution as is typical of fibers deposited in meltblown processes so as to form an open, porous structure. The aggregate fibers of the present invention generally are formed of two or more separate abrasive polymer fibers or strands which are adhered together along at least about 5 mm of the fiber length. The abrasive fibers of the meltblown web are generally greater than about 15 microns in diameter.

A method for forming a needle assembly is provided. A distal portion of the needle can be formed of a first material which does not interfere with MRI imaging of a tissue receiving port disposed in the distal needle portion. A proximal needle portion can be formed of a second, different material, such as a metal. The proximal needle portion can provide strength and stiffness.

The invention discloses a shear wall with an inbuilt continuous-row steel tube concrete core column and a soft steel energy consumption bond and a manufacturing method thereof, belonging to the field of steel tube concrete combined shear wall. The shear wall comprises a combined steel tube concrete frame and a shear wall body, wherein the shear wall body comprises a steel tube concrete core column and a soft steel energy consumption bond, and the left end and the right end of the steel plate energy consumption bond are fixedly connected with the core column and the steel tube concrete frame; two sides of the continuous-row core column are provided with longitudinal and transverse mat reinforcements, and reinforcements on two sides are connected by binding rebars; soft steel energy consumption short steel plates the strength of which is smaller than that of the steel plate are arranged between the core columns and between the core column and a frame column, thus greatly improving the ductility and the flexural rigidity of the shear wall; meanwhile, because the short steel plate is equivalent to a connecting beam, the effect of invisible 'strong column and week beam' can be realized; and the soft steel energy consumption bond, the concrete wall body, the frame column and the core column jointly form three defensive lines of a lateral force resisting system. The invention adopts the steel tube concrete core column and the soft steel energy consumption bond as the lateral force resisting system, improves the vertical rigidity and the bearing capacity of the shear wall, has the advantages of convenient construction and shortened construction period and is more economical.

A method of processing a wafer having a plurality of streets formed on the front surface in a lattice pattern and a plurality of devices formed in a plurality of areas sectioned by the plurality of streets, comprising an adhesive tape amounting step for mounting the front surface of the outer peripheral portion of an adhesive tape having an adhesive layer on the front surface and a plurality of via holes onto an opening of an annular frame to cover it; a frame fixing step for placing the rear surface of the adhesive tape mounted on the annular frame on the chuck table for suction-holding a workpiece of a processing machine and fixing the annular frame; a wafer affixing step for placing the wafer on the front surface of the wafer affixing area of the adhesive tape, suction-holding the adhesive tape on the suction-holding area of the chuck table by exerting suction-force to the suction-holding area, and sucking the wafer to affix it to the front surface of the adhesive tape; and a processing step for processing the wafer along the streets.

The present invention is related to a paperboard product having a basis weight in a range of 100 to 350 pounds per 3,000 square feet. The paperboard comprises at least one coated surface suitable for printing. The at least one coated surface comprising cellulosic fibers and from about 0.05 to about 0.5 wt. % dry basis expanded synthetic polymer microspheres based on total weight of the of cellulosic fiber dispersed thereof. The coated surface has a Parker smoothness less than about 2.0 and a Hagerty / Sheffield smoothness not less than about 20 Sheffield units.

A firearm barrel having barrel flutes on the outer surface of the barrel where the barrel flutes are undercut relative to an outward radial vector from the center of the barrel at an arcuate radial distance that exceeds the arcuate radial distance of an undercut produced by a straight walled flute cutter such that the barrel flutes are hyper-undercut.

A switch integrated type housing includes a housing body, a switch button sheet, a conductor and a cover sheet. The housing body is provided with a plurality of concave sections on an outer surface of the housing body. The switch button sheet is provided on the outer surface to cover the plurality of concave sections. The conductor has a dome shape downwardly projecting and is provided in each of the plurality of concave sections to contact the switch button sheet. The cover sheet is provided between the switch button sheet and the outer surface of the housing body in a portion of the outer surface of the housing body other than the plurality of concave sections and to cover a lower surface of the conductor in each of the plurality of concave sections.

An intracranial stent formed from Nitinol has variable flexibility. The stent (10) is formed from a plurality of stent rings (12) connected by tie bars (14). The tie bars (14) in a central soft zone (16) are heat treated so as to confer a higher transition temperature on the Nitinol. As a result, at body temperature, the soft zone (16) has reduced longitudinal stiffness as compared to the stiffer zones (18) found at the ends of the stent (10).

A robotic arm comprising a plurality of segments, each comprising articulated links, and means for causing each segment to bend so the arm can follow a serpentine path. A helical spring is provided coaxially with the arm to urge the links to an initial datum position, and to distribute the bending over the links of each segment.

The invention relates to the light reflection material technology field and provides a micron order prism pyramid monomer and a manufacturing method thereof. The prism pyramid is capable of accommodating both the light flashing and light reflecting effects, and can exist independently without being attached to a carrier film. Only with adhesive glue, oil painting, hair glue and nail polishing oil and other colorless or colored transparent fluid or liquid media, it is possible to let the prism pyramid monomer to be attached on objects such as films, cloth, wires and plates requiring to be added with light or to realize light flash so that these materials can present the lighting effect. The monomer can be applied widely in great practical use, and the manufacturing method for the monomer is also simple and easy to implement. Therefore, with the method, batched monomer can be produced and used.

A method of processing a wafer having a device area where a plurality of devices are formed on the front surface and an extra area surrounding the device area and comprising electrodes which are formed in the device area, comprising: a reinforcement forming step for removing an area, which corresponds to the device area, in the back surface of the wafer to reduce the thickness of the device area to a predetermined value and keeping an area, which corresponds to the extra area, in the back surface of the wafer to form an annular reinforcement; and a via-hole forming step for forming a via-hole in the electrodes of the wafer which has been subjected to the reinforcement forming step.

The invention discloses paper for packaging a carrier tape and a preparation method thereof. The paper and the preparation method are characterized in that the thickness of the paper for packaging the carrier tape is 0.25mm-1.00mm, the thickness deviation is plus or minus 0.02mm, the compactness is 0.80-0.95g / cm<3>, the moisture content is 6.0%-9.0%, the deflection is greater than or equal to 30mN.m, the peel strength between all the layers is greater than or equal to 80ftlb / 1,000in2, the critical wax rod strength of a surface layer is greater than or equal to 18A, and the residual rate of burrs (soft flocks) greater than 0.1mm in a carrying hole punched by using a punching mould is less than 5 / 1000. According to the paper for packaging the carrier tape and the preparation method thereof, by utilizing short fiber paper pulp subjected to pulp grinding treatment, and adding and spraying a high-molecular polymer resin adhesive, dry-strength resin, wet-strength resin, a stiffening agent, a sizing agent and the like into the paper pulp and between made wet paper sheet layers, a three-dimensional network structure is formed by bonding paper pulp fibers with various polymer resin macromolecules, so that paper boards have relatively high interlayer bonding strength, surface strength and stiffness, and the fibers are easier to cut off during punching to reduce the production of the soft flocks, so as to meet the quality requirements for the packaging the carrier tape.

A micro-flexure is provided for achieving secondary actuation in an actuator of a disk drive. The micro-flexure is a separate element which attaches to a standard flexure. A slider mounts to the micro-flexure. Piezoelectric elements attach to the micro-flexure to provide the motive force for displacing the micro-flexure during secondary actuation. The secondary actuation is thereby achieved by isolating movement at the slider.

A shaft structure with adjustable and self-regulating stiffness is provided for golf clubs, fishing rods, and the like. The shaft structure employs in a presently preferred form a hollow tube in which a piston and a longitudinally spaced platen, each longitudinally slidable, are incorporated. The piston and platen are separated from one another by a spring biasing member. The platen is position controlled longitudinally by a longitudinally extending jackscrew that is rotatable and threadably associated with that platen, but that is longitudinally fixed relative to the tube. The chamber defined on one side of the piston contains a fluid which can be a gas or a liquid, and the platen assumes a position along the shaft which to corresponds to a location where forces on each side of the piston are equalized. Rotating the jack screw causes the platen to move longitudinally, the direction depending upon the direction of jackscrew rotation. This movement causes the piston to relocate to a position where the respective pressures on each side thereof remain equalized.

The invention discloses a lining coating technology for a spheroidal graphite cast iron tube. The lining coating technology is characterized by comprising the following steps of 1, polishing the inner wall of a blank tube, and performing shot blasting; 2, putting the treated tube on a riding wheel of lining coating equipment through a transferring tool, and switching on a variable-frequency motor connected with the riding wheel to drive the tube to rotate at the rotating speed of less than or equal to 50rpm; 3, switching on a heating fire gun arranged below the tube to preheat the outer wall of the tube, and controlling the temperature between 140 DEG C and 230 DEG C; 4, after preheating is finished, uniformly distributing polyvinyl chloride or polyethylene or ABS (acrylonitrile butadiene styrene) engineering plastic or polytetrafluoroethylene or polypropylene powdered substances on the inner wall of the tube through a material distribution trolley to form a lining layer, and then cooling the lining layer, wherein in the cooling process, the tube is continuously rotated until the tube is completely cooled. The problem of the influence, which is caused by a fact that the lining layer prepared by an existing lining coating technology for the spheroidal graphite cast iron tube is easy to fall off, on normal mounting, the use of metering equipment, the sanitation of water quality and the like is solved; the manufacturing cost of the lining layer is reduced.

A robotic arm comprising a plurality of segments, each comprising articulated links, and means for causing each segment to bend so the arm can follow a serpentine path. A helical spring is provided coaxially with the arm to urge the links to an initial datum position, and to distribute the bending over the links of each segment.

The invention discloses a steel pipe concrete-steel support-steel plate outer packed concrete shear wall and making method thereof, belonging to a shear wall and making method thereof. The shear wall is composed of steel pipe concrete frame columns (1) and concrete shear wall boards embedded with a steel plate (2), and is characterized in that the two ends of the shear wall are provided with steel pipe concrete frame columns (1), the frame beam is provided with a section steel beam (4), and the steel plate (2) embedded in the shear wall is provided with a steel support (3). Compared with the conventional shear wall, the shear wall of the invention has large initial rigidity, high bearing ability, slow attenuation for bearing force and rigidity, good whole shock resistance and energy consumption performance, stable shock resistance performance, and reduced bottom shearing sliding destroy.

The present invention provides cosmetic compositions that form a durable film or coating on surfaces such as hair or skin. The compositions of the invention comprise one or more anionic silicones and one or more high molecular weight esters, the combination of which provides a durable film. Methods for treatment of hair and skin employing the compositions of the invention are also provided.

The invention discloses a steel pipe concrete-steep support-steel plate combine shear wall and making method thereof, belonging to the field of building construction. The steel pipe concrete-holed steel plate-concrete combine shear wall is characterized in that: the shear wall is composed of steel pipe concrete frame columns (1) and steel plate concrete shear wall boards, and the frame beam is provided with a section steel beam (3). A steel plate (2) embedded in the shear wall is provided with an opening, the two sides of the steel plate (2) are provided with steel bar nets composed of transverse steel bars (4) and longitudinal steel bars (5), and the steel bar nets at two sides of the steel plate (2) are tied by steel tie bars (7) at the opening on the steel plate (2). Compared with the conventional shear wall, the shear wall of the invention has large initial rigidity, high bearing ability, slow attenuation for bearing force and rigidity, good whole shock resistance and energy consumption performance, stable shock resistance performance, and reduced bottom shearing sliding destroy.

A flexible stent having a waveform pattern formed from a sheet of biocompatible material and into a tubular shape for maintaining the patency of a lumen such as in a coronary vessel. The waveform pattern of the stent is formed from a flat sheet of malleable, biocompatible material by, for example, photochemically etching the sheetbiocompatible material and leaving a framework or plurality of closed cells. The waveform pattern is formed into a tubular shape around a deflated, delivery catheter balloon with segments of the closed cells being interposed only overlapping a reinforcing member extending longitudinally along the stent. The stent material is treated to reduce the coefficient of friction of the material and to aid in the radial expansion of the stent with the balloon. Radiopaque markers are positioned at the ends of the stent to aid the physician in positioning the stent at an occlusion site.

A rotary device according to an aspect of the invention includes: a sleeve having an inner cylindrical surface, a first end portion and a second end portion at respective ends of the inner cylindrical surface; a shaft that is accommodated in the inner cylindrical surface in a manner rotatable relative to the inner cylindrical surface; a fluid present in a space between the shaft and the sleeve; a first pump portion formed in a middle portion of the inner cylindrical surface and configured to cause the fluid to flow toward the first end portion by the relative rotation of the shaft and the sleeve; a first radial narrow gap formed at a region of the inner cylindrical surface on a side of the first end portion with respect to the first pump portion; and a first circulation path communicated with the first pump portion.