1417 results about "Counterbore" patented technology

A novel method and apparatus for riveting a two-piece suture tray package. A two-piece suture tray assembly is provided having a top member and a bottom member. The top member has a top and a bottom, and plurality of rivet members extending down from the bottom of the top member. The rivet members have free ends. The bottom member has a top and a flat bottom surface, and a plurality of rivet receiving openings extending therethrough. A counterbore surrounds each rivet receiving opening in the flat bottom surface. An ultrasonic riveting apparatus is provided having a clamp member with a cavity, and an ultrasonic horn member having a flat bottom moveably mounted in the cavity. The assembly is mounted in the riveting apparatus and engaged by the clamp member. The flat bottom of the horn member engages the free ends of the rivet members, and when energized by an ultrasonic generator, causes the free ends of the rivet members to deform into the counterbores, such that the free ends are flat and in alignment with the bottom surface of the bottom member.

The invention discloses a manufacturing process of an adjusting nut. The steel billet raw materials are manufactured into wire rod materials, surface treatment is performed on the wire rod materials by using phosphate, spheroidizing annealing, phosphating and fine-drawing and sizing treatment are respectively performed on the wire rod materials after roughing, and finally, the molding working procedure of the adjusting nut is carried out in a cold-heading molding machine; the molding working procedure of the adjusting nut comprises the following steps: material fracturing; material shaping and upsetting, upsetting an inner chamfer at the upper end; material turning, shaping and upsetting a positioning hole at the upper end and an inner chamfer at the lower end; material translating, upsetting a counterbore at the front end and a positioning hole at the rear end; material turning, upsetting a counterbore at the other end; material translating, upsetting a plane in the middle by using the PKO male die technology; discharging the residual scrap iron at a middle hole out and manufacturing a through hole product; and performing tapping to an inner hole of a blank of the adjusting nut. The invention is molded at one time by adopting a cold heading machine, thereby improving the production efficiency and the product quality of the adjusting nut, saving the raw material and reducing the manufacturing cost.

A bolt carrier for use with the ARI5 / MI6 family of firearms is provided. The bolt carrier includes an integrally formed carrier key and spherical strike face surrounded by a cylindrical counterbore made with a downward angle to act against the tilting force imparted by the operating rod of the firearm's gas operating system. The outer surface of the carrier includes upper and lower running rails that all extend fully to the front face of the carrier to lengthen the carrier's rail support or bearing surfaces against the receiver.

A threaded fastener for securing workpieces with a determinable desired clamp load and including a nut assembly and a bolt with the nut assembly including a nut member with a lock base having a load ring portion and a boss portion with the boss portion adapted to be located in a retention counterbore in the nut member and being of a length to provide a gap between the load ring portion and nut and at a predetermined load to collapse and close the gap and be deformed radially into compressive engagement with the threads of the bolt to provide prevailing torque type lock structure resisting loosening of the nut assembly from the bolt with the predetermined collapse load providing the desired clamp load and with the gap closure visibly indicating attainment of the desired clamp load.

A secure connection between the bottom nozzle of a nuclear fuel assembly and the control rod guide thimbles having two or four crimped pockets in the side wall of a bottom nozzle leg counterbore which are formed by drilling two or four blind holes through the top surface of the bottom nozzle. After attaching the bottom nozzle to the fuel assembly with a crimp bolt a pneumatic tool is then inserted into a flanged cup feature on the crimp bolt head and the flanged portion of the cup feature of the crimp bolt is deformed into the crimp pockets. The crimp pockets are contained within the leg counterbore and prevent the screw from rotating or falling out of the assembly in the event of preload loss or screw fracture.

A variable vane shroud for a gas turbine engine comprises a cylindrically shaped body, a hole arranged at a circumference of the body, and a counterbore arranged concentrically around the hole on a radially inward facing surface of the body. The hole is for receiving a trunnion from a variable vane and the counterbore is for receiving a hub from the variable vane. A liner is inserted into the hole and counterbore such that the trunnion and hub are provided with a contact surface. The invention also provides a method for repairing a damaged counterbore in a variable vane shroud. A liner having a shape corresponding to a layer of material removed from the shroud is inserted into the void left by removing damaged material such that the counterbore is restored to pre-damaged dimensions.

A boot binding system is shown for use especially on skiboards, having a binding plate, boot supports, bails, a lever, a resilient material, and a size adjustment locking mechanism. Boot supports and binding plate are complimentary shaped for slideable affixation to each, without requiring additional fasteners. A simple fastener locks the relative position of the boot support on the binding plate while also immobilizing any boot support motion. In the locked position, the fastener mates with counterbores in the binding plate's surface. The binding plate is rectangular in top view and its longitudinal edges have a chamfer, which complements a chamfer on the boot supports. The binding plate has mounting holes in its central region, which are used to affix the binding to a skiboard. Resilient material exists between the binding plate and the skiboard, thereby allowing the skiboard to flex more freely. The boot supports have slots to retain the bails. The lever also has a slot to accept a bail. The binding is simple to manufacture and assemble making it cost competitive for production. An alternate embodiment includes a version that eliminates the need for resilient material. A second alternate embodiment eliminates the central mount and mounts to the skiboard in the region of the boot supports.

Compressor wheel and techniques for manufacturing such a wheel are provided. The wheel may include a hub with a counterbore internally treated to impart residual compressive stresses for enhanced endurance to stress-induced fatigue. The surface treatment allows extending the counterbore relatively closer to a plane of typical maximum stress of the wheel. This design flexibility advantageously allows avoiding or reducing overhang of the compressor wheel, thereby improving rotor dynamics and reducing the axial length of the hub, and the overall foot print of the compressor wheel.

A polymer extrusion crosshead assembly for forming a spirally-striped extrusion. The assembly includes conventional components for admitting, turning, and accelerating primary molten polymer toward a novel rotating die sub-assembly. A body element includes an axial counterbore for receiving a manifold supply block in communication with a source of secondary striping polymer. A wear plate is attached to the manifold block. The die sub-assembly includes a striping die having an annular passage for conveying the primary polymer to form an extruded tube or a core material coating. The die is loaded against the wear plate by a Belleville washer. The die includes one or more striping nozzles in communication with the manifold block for injecting secondary striping polymer into the annular stream of primary polymer flowing through the die, creating a longitudinal stripe of striping polymer. Rotating the die while extruding both polymers yields a helically striped (spiral) extrusion.

A mounting assembly for rotatably mounting a surface processing tool holder on at least one motor driven rotatable arm of a surface processing apparatus, such that the tool can spin freely as the arm is driven by the motor, includes an elongate shank having a smooth surfaced, cylindrical portion intermediate its ends adapted for positioning within an aperture in the tool holder with one threaded end portion projecting through the aperture for attachment to an elongate mounting bar adapted for attachment to the arm. A bearing supported by the tool body and surrounding the smooth surfaced portion of the shank is rotatable relative to the shank. The mounting bar includes a threaded aperture for receiving the threaded end portion of the shank and the threaded aperture includes a counterbore for receiving the end portion of the smooth surfaced shank portion which is adjacent the threaded end portion.

An extractor system for a plasma ion source has a single (first) electrode with one or more apertures, or a pair of spaced electrodes, a first or plasma forming electrode and a second or extraction electrode, with one or more aligned apertures. The aperture(s) in the first electrode (or the second electrode or both) have a counterbore on the downstream side (i.e. away from the plasma ion source or facing the second electrode). The counterbored extraction system reduces aberrations and improves focusing. The invention also includes an ion source with the counterbored extraction system, and a method of improving focusing in an extraction system by providing a counterbore.

A fastener system for retaining a loose elongate fastener in a counterbore, including an elongate fastener, such as a bolt, having a head for being received and retained in a counterbore in a structure and in generally flush relation to a surface of the structure surrounding the counterbore, and a retaining member for being secured to the structure proximate the counterbore and overlapping the counterbore to trap the loose fastener in the counterbore.

A bolt carrier for use with the AR15 / M16 family of firearms is provided. The bolt carrier includes an integrally formed carrier key and spherical strike face surrounded by a cylindrical counterbore made with a downward angle to act against the tilting force imparted by the operating rod of the firearm's gas operating system. The outer surface of the carrier includes upper and lower running rails that all extend fully to the front face of the carrier to lengthen the carrier's rail support or bearing surfaces against the receiver. To improve the robust operation of the firearm in over the beach operations, the bottom and rear of the receiver extension has drain holes formed through which water is forced out of the receiver extension by the reciprocating action of the bolt carrier when the weapon is fired.

A tee-nut fastener which includes a nylon locking ring located distally from the entrance to a passageway ensures proper fastening upon coupling with a threaded stud. The tee-nut is used use in combination with a track for efficient delivery. The track comprises an upper guide spaced apart relatively farther than a lower guide. The process for making the tee nut uses a cold heading process. The tee-nut includes a flange having an upper portion and a lower portion. A shank extends perpendicularly from the upper portion and a head extends oppositely from the shank and perpendicularly from the lower portion. The flange includes at least two teeth extending in the direction of the shank and a passageway through the shank, flange and head. The passageway includes a bore countersunk at both ends thereof, a cavity, and threads therein. A locking ring resides in the cavity and is relatively thin compared to the length of the teeth to ensure that the tee-nut is not extricated from a substrate in which the prongs or teeth are embedded upon coupling with a threaded stud.