719 results about "Radial surface" patented technology

A method for stabilizing a spine includes providing a coupling element having upper and lower ends, a rod receiving opening adapted to receive an elongated stabilizing rod, a bore extending through the lower end and a conical-shaped seat surrounding the bore adjacent the lower end; providing a fastener having upper and lower ends, a head having a radial surface, and at least one anchoring element between the lower end of the fastener and the head; assembling the fastener with the coupling element so that the lower end of the fastener passes through the bore of the coupling element and the radial surface of the head engages the conical-shaped seat. The method also includes anchoring the fastener to bone; moving the coupling element relative to the fastener for capturing the elongated stabilizing rod in the rod receiving opening; and urging the captured stabilizing rod toward the head of the fastener so that the rod contacts the head and forces the radial surface of the head against the conical-shaped seat of the coupling element for locking the coupling element from further movement relative to the fastener.

An expanding or expandable broadhead tip for arrows wherein a sliding body is provided to carry the blades of the arrow and allow for rotation of the blades to an expanded position. When in folded or inflight position, the rearmost ends of the blades rest on a radial surface of a stationary or positionable stop having a camming front surface and which are held in such position by a retainer. When the tip strikes an object, the sliding body moves rearwardly causing the ends of the blades to override the hold down force of the retainer and as rearward motion continues, the blades are cammed outwardly by the camming front of the stop.

A system and method for increasing the amount of oxygen in a kiln chamber is disclosed. The radial surface of a rotatable kiln is provided with at least one oxidant injection port extending through the radial surface into the kiln chamber. A cam is connected to the radial surface adjacent the oxidant injection port. A valve assembly including a valve chamber in fluid communication with an oxidant supply is mounted adjacent the kiln substantially in fixed spatial relation with the rotatable kiln body. The valve assembly includes a follower member adapted to contact a surface to the cam to actuate the valve assembly. Rotation of the kiln body brings the cam into contact with the follower member, thereby actuating the oxidant injection assembly, and injecting oxidant through the injection port into the kiln chamber.

Methods and devices for retaining a packer element in a set condition within a wellbore and for preventing or minimizing extrusion of the packer element after setting. A packer device includes a plurality of deformable packer elements which radially surround a packer mandrel. One or more of the packer elements is contained against axial extrusion using a packer containment system. The packer containment system includes a flexible metal backup ring, which partially encases the packer element by substantially covering at least one axial side and a portion of the exterior radial surface of the packer element. The packer containment system also includes a plurality of annular support rings, or “petal rings” which have petal-shaped radial protuberances with slots between them.

A multiple-fluid, multiple-substance, multiple-phase, multiple-pressure, multiple-temperature, multiple-stage turbine engine. In preferred embodiments, one or more fluids are supplied by passageways in the turbine shaft or supplied by non-shaft passageways, or both, through rotor passageways to multiple-phase, multiple-fluid, multiple-substance nozzles affixed to one or more perimeters, radial surfaces, axial surfaces, and/or curved or slanted surfaces of the turbine rotor assemblies. The multiple perimeters, radial surfaces, axial surfaces, and/or curved or slanted surfaces of the turbine rotor assemblies are preferably configured and located for multiple inlet and exit velocities of the nozzles, multiple inlet and exit pressures of the nozzles, or combinations thereof. The one or more fluids entering the turbine may each be a substance of single phase, or a substance of multiple phases, or a mix of the single-phase and/or multiple-phase conditions for two or more entrance fluids.

A rotary slip for supporting a drill string having a plurality of slip segments connected to define an opening for insertion of the drill string, wherein each slip segment comprises a head region, a toe region, and an inner radial surface axially extending between the head and toe regions, and wherein the inner radial surface of each slip segment comprises a circumferential groove. A plurality of axially aligned drill string gripping inserts are attached to each slip segment between the head region and the circumferential groove, wherein each insert comprises a gripping surface for contacting the drill string. A load ring is disposed within the circumferential groove of each slip element, the load ring comprising at least one securing element which is engaged by one of the plurality of axially aligned inserts to secure the load ring within the circumferential groove.

A near field lens for an automotive light assembly which has a reduced thickness. Generally, the near field lens includes a main body of light transmitting material. A pocket is formed in the main body for receiving light from a light source. The pocket is defined by an inner radially facing surface and an inner axially facing surface. The inner radially facing surface is structured to reduce the thickness of the lens.

A rotary screening device is disclosed which includes a rotating cylinder formed from a number of coaxially aligned modular screening sections. Each cylindrical section having an inlet end, an outlet end and a cylindrical wall formed from a plurality of detachable screen panels each presenting a screening surface. The outlet end of a first cylinder section being secured in coaxial alignment with the inlet end of the next adjacent cylindrical section secured. The cylinder being rotatably supported on wheels within a containment housing which extends about the radial surfaces of the cylinder.

A seal is provided for preventing axial leakage through a radial gap between a stationary structure and a rotating structure. The radial gap is defined by an inner radial surface opposing an outer radial surface across the radial gap. The seal includes at least one land disposed on one of the inner radial surface and outer radial surface. At least one first tooth and at least one second tooth project from the other of the radial surfaces. The second tooth is shorter than the first tooth. At least one of the first tooth and second tooth, is configured to extend at an angle upstream. This angle is defined between a radial surface from which the first or second tooth projects and an upstream surface of the same tooth. The angle is less than or equal to about 80 degrees.

A rotary cutting apparatus comprising a frame and a die roll defining a first longitudinal axis and comprising a cutting member. The die roll is rotatably connected with the frame and configured to rotate about the first longitudinal axis. The rotary cutting apparatus further comprises a bearer ring connected with the die roll and an anvil roll defining a second longitudinal axis and comprising an outer radial surface. The anvil roll is rotatably connected with the frame and is configured to rotate about the second longitudinal axis. The bearer ring of the die roll is in contact with the outer radial surface. The anvil roll may be supported by at least one cam follower. The anvil roll may be axially removable from the frame via lateral translation along the second longitudinal axis.

A compressor includes a shell, a compression mechanism, and an axial biasing system. The shell defines a first passage forming a first discharge passage. The compression mechanism includes first and second scroll members meshingly engaged with one another and forming a series of compression pockets. The first scroll member includes a second discharge passage. The axial biasing system includes a biasing member having first and second surfaces generally opposite one another. The first surface includes a first radial surface area exposed to an intermediate pressure from one of the compression pockets and a second radial surface area exposed to a discharge pressure. The second surface includes a third radial surface area exposed to the intermediate pressure. The biasing member is axially displaceable between first and second positions. The biasing member axially engages the first scroll member when in the first position.

A film-supporting device is used with a waste-disposal unit. The device comprises an annular body. The annular body has an annular wall. The inward radial surface of the wall defines a central opening of the body. The outline of the central opening in a transverse plane of the device has variable diametrical dimensions with a first diameter of greater dimension than the second diameter. The outline has two of the first diameter of generally equal dimension and two of the second diameter of generally equal dimension. The device has tubular film about an outward radial surface of the annular body. A free annular end is dispensed outwardly from the annular wall. The free annular end is closed to form a bag. The opening of the bag is accessible through the central opening and is of optimized shape via the central opening for the disposal of waste. A method for disposing of waste on a scooping tool is also provided.

Systems and methods for remotely setting a downhole device. The system includes a base pipe having inner and outer radial surfaces and defining one or more pressure ports extending between the inner and outer radial surfaces. An internal sleeve is arranged against the inner radial surface and slidable between a closed position, where the internal sleeve covers the one or more pressure ports, and an open position, where the one or more pressure ports are exposed to an interior of the base pipe. A trigger housing is disposed about the base pipe and defines an atmospheric chamber in fluid communication with the one or more pressure ports. A piston port cover is disposed within the atmospheric chamber and moveable between blocking and exposed positions. A wellbore device is used to engage and move the internal sleeve into the open position by applying predetermined axial force to the internal sleeve.

A bicycle sprocket crank assembly is comprised of first and second crank arms joined to a spindle. One of the crank arms and the spindle may be fabricated as a unitary structure, or both cranks arms may be formed as separate structures and joined together. In either case the spindle has at least a first coupling end with an internally tapped axial bore defined therein and the second crank arm forms at least a first socket at its axle end. At least a first wedging sleeve is provided and is disposed about the first coupling end of the spindle. The first wedging sleeve conforms to the shapes of both the first coupling end of the spindle and the hollow cavity in the first socket. Either the coupling end of the spindle or the hollow cavity is axially tapered, and the wedging sleeve is tapered to match so that as the first socket is drawn onto the first coupling end of the spindle, the wedging sleeve is increasingly forced in between the inner radial surface of the hollow cavity of the socket and the outer radial surface of the coupling end of the spindle. The wedging sleeves may be interconnected by flexible, elastic straps to allow each individual shim to move independently of the other.

The invention relates to a cutting machine and a cutting method for mechanical equipment, and is designed aiming at the fact that cleaning of a long section of a pile foundation of the prior building engineering is realized by implementing cutting from the periphery of a steel pipe pile, so that the construction efficiency is reduced. The design key points of the invention comprise that: the cutting machine is arranged inside the steel pipe pile, and the extending depth is adjusted through a central pipe and a fixed plate; the central pipe is fixedly connected with a plane of the steel pipe pile; a rotary platform component which is connected with the radial surface is connected with a rotary disc, a positioning wheel extending mechanism and a positioning wheel component; an output shaft of a rotary motor is connected with a gear component, an electrically conductive sliding block component and the rotary disc; a control motor is connected with a telescopic planker; a cutting motor is connected with the telescopic planker and a grinding wheel; the radial surface of the central pipe is connected with the positioning wheel extending mechanism and an auxiliary wheel carrier which provides a driving force for the grinding wheel; and the high speed rotational grinding wheel forms a circle of cutting line along the inner wall of the steel pipe pile so as to complete cutting of the steel pipe pile which is a section higher from the inside diameter to the outside diameter. The cutting machine and the cutting method solve the technical problems of cutting of the steel pipe pile and are particularly suitable for project cleaning of a complete stage of the pile foundation.

A magnetic screw having a screw shaft of magnetic material having thread crests formed on the outer peripheral surface thereof, and a magnetic nut fitted on the outer periphery of the screw shaft. The magnetic nut includes annular permanent magnets magnetized with magnetic poles of opposite polarities on opposed sides, and annular yokes disposed such that the annular yokes are magnetically coupled with the magnetic poles of the magnets. The inner peripheral surfaces of the yokes are provided with thread crests corresponding with the thread crests of the screw shaft with a minute gap G defined therebetween such that magnetic circuits are formed between the screw shaft and the magnets through the thread crests of the screw shaft. The magnets are magnetized on their inner and outer radial surfaces with magnetic poles of opposite polarities, and the yokes are fitted in the magnets.

An ultrasound surgical apparatus is provided. The apparatus is constructed from a tip mechanically coupled to an ultrasound horn containing an internal chamber. The horn is mechanical coupled to an ultrasound transducer driven by a generator. The ultrasound tip possesses at least one radial surface, a cavity, or some other form of a hollowed out area, within at least one of the radial surfaces, and a sharpened cutting member at the opening of the cavity. The horn contains an internal chamber enabling the creation of therapeutic solution that may serve as or be incorporated into a coupling medium delivered to the cavity of the tip.