Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface.

Abstract: A combination low-pressure, high-pressure hydraulic pump which allows a constant differntial pressure is disclosed. This pump features dual concentric pistons, each with its own chamber. The pistons reciprocate together at low pressures; as the system pressure increases, a spring resists the stroke of the low pressure piston, so that ultimately only the smaller, high pressure piston reciprocates.

Abstract: A fluid coupling for a conduit which features a quick connect-disconnect construction between first and second coupling members. The first coupling member is connected to the conduit and is generally cylindrical, having a main portion and a reduced diameter portion. Peripheral grooves on the reduced portion contain sealing rings which form a fluid-tight seal with a second coupling member that fits over the first member, the sealing rings contacting an internal bore. The principal seal is provided by a resilient O-Ring which is located in the groove located at the intersection of a wall that intersects the reduced diameter portion of the first coupling member. This contacts a shoulder formed on a wall which intersects part of the bore of the second coupling member. This provides both axial and radial compression between the coupling members. The second peripheral groove is spaced from the first groove and contains another O-Ring as well as a fluoroelastomeric backup ring to enhance the seal.

Abstract: A tool used for removal and installation of a fluid coupling retaining pin. The tool consists of long, narrow handle terminating in a body having a flat upper surface and an arcuately curved lower surface, one end of the upper surface being notched to fit under the loop of the retaining pin. The curved lower surface fits against the coupling, acting as a fulcrum for pulling the pin out of its groove. The tool also has sufficient mass so that it may be used to drive the pin into its groove as well.

Abstract: A button fastener for use with a storage carton having a stud on one button member which is extended through the side wall of the storage carton. Another button member then is engaged with the stud so as to receive the stud in a bore in it and the two button members are pressed together to force the stud through the bore until locking shoulders formed by an enlarged head on the stud and the cavity about the bore lockingly engage with one another to affix the two button members together. A longitudinal slot in the stud and the enlarged head on it permits the enlarged head to be sufficiently compressed together to be extended into and through the bore, and to then expand to engage the locking shoulders. Conical walls of the enlarged head also assist in inserting the enlarged head into the bore. The enlarged head on the stud is contained substantially or completely within the cavity about the bore and is thereby prevented from puncturing or otherwise damaging the side walls of the storage carton.

Abstract: The present invention relates to a machine for crimping a workpiece. The machine of the invention comprises a bed plate, a conical shaped bowl adjacent the bed plate, and a ram reciprocal substantially upward and downward along an axis toward and away from the bowl. A crimping die assembly comprising a plurality of circumferentially disposed die fingers attached to a die retaining ring is disposed adjacent to the bowl for receiving a workpiece. A driving means is provided for advancing the ram toward the die assembly, and a pusher assembly comprising a single pusher ring is provided to transmit the forces of the ram to the die assembly. The driving means has a variable length stroke, and the length of the stroke is controlled by matching a reference voltage with a comparative voltage on a balancing circuit. The diameter of the circle embraced by the die fingers is correspondingly reduced as the die fingers are advanced into the conical shaped bowl.

Abstract: A crimping die assembly comprising a plurality of die fingers, a holding unit for holding the die fingers in a working relationship, the holding unit comprising a retaining ring having a plurality of substantially evenly spaced openings for receiving the die fingers therein for holding the die fingers at one end of the die assembly, each die finger having a connecting part connecting the die finger to the retaining ring, each connecting part permitting radial movement of its respective die finger with respect to the central axis of the retaining ring, and a springing arrangement integrally associated with the connecting parts tending to force the die fingers radially outwardly with respect to the retaining ring, the top surfaces of the die fingers extending beyond the top surface of the retaining ring so as to receive pressing forces directly from a ram through a pusher ring that engages the top surfaces of the die fingers when the crimping die is used to crimp a workpiece.

Abstract: An improved transfer storage carton having complimentary fastening means affixed to each of the respective end flaps and to at least one of the top flaps which are folded in overlapped relationship atop the open compartment of the carton in conventional fashion to effectively close and seal the carton. In this respect, it is preferred to use complimentary fasteners of the type sold under the trademark "VELCRO" by Velcro Corp. The complimentary fasteners are fixed to and carried by clips which are generally u-shaped in configuration. These clips are extended through slots formed in the end and top flaps to secure the fasteners to the flaps. In addition, one side flap is formed to expose the complimentary fasteners secured to the end flaps when the side flap is folded to overlie the end flaps so that the complimentary fastener affixed to the other one of the side flaps automatically lockingly engage to seal shut the carton.

Abstract: A fluid coupling for a conduit which features a quick connect-disconnect construction between first and second coupling members. The first coupling member is connected to the conduit and is generally cylindrical, having a main portion and a reduced diameter portion. Peripheral grooves on the reduced portion contain sealing rings which form a fluid-tight seal with a second coupling member that fits over the first member, the sealing rings contacting an internal bore. The principal seal is provided by a resilient O-Ring which is located in the groove located at the intersection of a wall that intersects the reduced diameter portion of the first coupling member. This contacts a shoulder formed on a wall which intersects part of the bore of the second coupling member. This provides both axial and radial compression between the coupling members. The second peripheral groove is spaced from the first groove and contains another O-Ring as well as a fluoroelastomeric backup ring to enhance the seal.