99results about How to "Increased frictional contact" patented technology

The invention is directed to a bladeless trocar obturator to separate or divaricate body tissue during insertion through a body wall. In one aspect, the obturator of the invention comprises a shaft extending along an axis between a proximal end and a distal end; and a bladeless tip disposed at the distal end of the shaft and having a generally tapered configuration with an outer surface, the outer surface extending distally to a blunt point with a pair of side sections having a common shape and being separated by at least one intermediate section, wherein each of the side sections extends from the blunt point radially outwardly with progressive positions proximally along the axis, and the shaft is sized and configured to receive an optical instrument having a distal end to receive an image of the body tissue. With this aspect, the tapered configuration facilitates separation of different layers of the body tissue and provides proper alignment of the tip between the layers. The side sections include a distal portion and a proximal portion, the distal portion of the side sections being twisted radially with respect to the proximal portion of the side sections. The intermediate section includes a distal portion and a proximal portion, the distal portion of the intermediate section being twisted in a first radial direction and the proximal portion of the intermediate section being twisted in a second radial direction opposite the first radial direction.

An article of footwear with a gripping system is disclosed. The gripping system helps to enhance the wearer's ability to contact an athletic ball during kicking. The gripping system can be centered about a region where the wearer tends to kick the ball, and the gripping system can be distributed in a pattern that provides an even or symmetric contact area with the ball.

The friction clutch between the prime mover and the change-speed transmission in the power train of a motor vehicle is actuatable by a slave cylinder cooperating with a master cylinder wherein the piston is movable by a clutch pedal or by an electric actuator. The casing of the slave cylinder is made, at least in part, of a plastic material and defines a plenum chamber arranged to receive pressurized fluid from the master cylinder by way of a conduit extending through a bell which contains the clutch and the slave cylinder. The annular piston of the slave cylinder surrounds the input shaft of the transmission. The plastic material of the casing of the slave cylinder can contain one or more additives which enhance its strength and / or influence its frictional engagement with the adjacent surfaces of the piston or of a lip seal which reciprocates with the piston. The piston and / or the lip seal can be installed in the casing to contact one or two metallic or plastic guide sleeves which are connected to or form part of the casing.

Produce bags are delivered with less waste and in more sanitary condition through a container holding a roll of bags having overlapping but separate ends. Adhesion between the bags and ultimate separation of the bags may be flexibly controlled with an interfolding of the bags and control of an orifice which applies drag to the bags and compression as they are removed.

A leash apparatus includes a housing containing a spool assembly, a spring biased lever arm, and a first tensioning line. The first tensioning line is attached to a first end of the lever arm and wrapped at least once around the spool assembly, and has an opposite end attached to other than the rotatable portion of the spool assembly, such as a fixed location on the leash housing on a mounting of the spool assembly. A surface of the spool assembly slidingly rotates relative to the tensioning line portion that wraps at least once around the spool assembly. A second tensioning line is wound about the spool assembly and extends outside of the housing. The second tensioning line is guided around a wheel attached to a second end of the lever arm located on an opposite side of the lever arm.

A substantially flat and planar dust cover has at least one opening formed through it near at least one edge for receiving a stacking tab on an open-topped container when the dust cover is applied to the container. A narrow strip of material is defined between the opening and an outer edge of the dust cover, and a strip of reinforcing tape is embedded within the edge of the dust cover to reinforce the narrow strip of material and prevent tearing of it or surrounding portions of the dust cover. A tongue shaped friction lock is integrally formed in the opening to capture the stacking tab.

Textured coatings for implantable medical devices can be provided in metallic or polymer surface layers having surface texture factors down to nanometer and sub-nanometer levels. Implantable devices having such textured surfaces and methods of coating such devices comprises providing a substrate surface of an implantable device and forming a coating layer of the substrate surface by directing a mixture of atoms of a first type of material and a second type of material toward the substrate surface while simultaneously and collinearly bombarding the substrate surface with ions, wherein the first type of material is substantially resistant to a removal process and the second type of material is substantially susceptible to a removal process.