Screw Actuated Patents (Class 24/136B)
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Patent number: 5802680Abstract: A wire rope clip comprising a two-piece bolt and saddle. The clip comprises first and second bolts, each having a head, a threaded end, and a plurality of splines fashioned proximate the head. The clip further comprises first and second saddles, each having a base, a first orifice and a second orifice. A first nut engages the threaded end of the first bolt and a second nut engages the threaded end of the second bolt.Type: GrantFiled: August 15, 1997Date of Patent: September 8, 1998Assignee: The Crosby Group, Inc.Inventor: Larry L. Postelwait
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Patent number: 5594977Abstract: An apparatus for gripping a smooth, fiberglass rod, the apparatus comprising a housing, a jaw cluster within the housing, and a force tube for positioning the jaw cluster within the housing. The rod-gripping apparatus includes a first aperture and a second aperture which facilitate passage of a rod through the apparatus. The force tube is mechanically interfitted with the jaw cluster. The jaw cluster comprises a plurality of elongated jaw members which are generally wedge-shaped and complementary to an inner tapered wall of the housing. The jaw cluster, which surrounds the rod, is set to or released from the rod, as desired, in response to a repositioning of the force tube relative to the housing.Type: GrantFiled: December 30, 1993Date of Patent: January 21, 1997Inventor: James P. McCallion
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Patent number: 5487679Abstract: An electric connector disclosed for a wide range of conductor sizes has interfitting female and male connector members that flare conductive strands of an electric conductor or cable. The outer contact surface is provided by a malleable material having a hardness less than the hardness of the strands and the strands are pressed into said outer contact surface to increase the contact surface area between the strands and male connector member. A converging passage between the connecting members provides a substantially uniform distribution of the strands around the periphery and press the strands against an outer contact surface of the male connector member and the surfaces of the connector members are shaped in such a way as to provide increased contact surface area and avoid breaking, weakening or kinking of the strands.Type: GrantFiled: May 23, 1994Date of Patent: January 30, 1996Inventor: Laythol W. Quaintance
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Patent number: 5392496Abstract: A cable clamping mechanism (10) having first and second jaws (24, 26) for clamping a cable (12). First and second backstops (20, 22) are fixed to a top plate (18) on opposite sides of the jaws. A first wedge (52) is slidably mounted between the jaws and the second backstop. A second wedge (56) is slidably mounted between the top plate and the first wedge. A hydraulic cylinder (60) slidably forces the second wedge across the first wedge, thereby forcing the first wedge against the jaws to clamp the cable therebetween.Type: GrantFiled: May 13, 1993Date of Patent: February 28, 1995Assignee: Newnes Machine Ltd.Inventor: Emeric W. Johnson
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Patent number: 5228875Abstract: A positive quick connect electrical connector for connecting the bare ends of a pair of electrical wires is constituted by a molded non-conductive female coupling member having a connection chamber therein and threaded walls. A metal connector member is secured to an end of one of the pair of electrical wires, the metal connector member being positioned in the connection chamber and having a conically-shaped end surface to provide a wire guiding and engaging surface for the bare end of the other of the pair of electrical wires. A non-conductive male coupling member has a bore therethrough. A first end of the bore has a conically-shaped annular wall which is complementary to the conically-shaped end surface on the metal connector member.Type: GrantFiled: September 12, 1991Date of Patent: July 20, 1993Inventor: Roger M. Swenson, Sr.
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Patent number: 5192144Abstract: A reusable end finishing apparatus for rope, cord, wire, cable and the like is provided. The end finishing apparatus has an outer rigid sleeve, an inner compressible barbed gripping member which engages the end to be finished, and an eyebolt which has a threaded rod which extends through holes in both the compressible gripping member and the outer rigid sleeve. In assembly for use, the termination of the device to be finished is threaded through the eyebolt and doubled back. The eyebolt is then placed in the compressible gripping member with grooves in the gripping member provided for the eyebolt eye. The threaded rod end of the eyebolt is moved through a hole in the compressible gripping member until the eye of the eyebolt bottoms in the gripping member.Type: GrantFiled: June 4, 1991Date of Patent: March 9, 1993Inventor: Michael B. Doninger
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Patent number: 5157814Abstract: An improved conductor clamp adapted to securely clamp conductors having various sized diameters. The clamp includes a first pair of generally rectangular bar clamping members movable in a first direction toward each other and in an opposite direction away from each other. Each of the first pair of clamping members has a generally V-shaped groove extending the length of the member with a contact area extending therefrom. A third clamping member is positioned intermediate the first pair of clamping members. The third clamping member includes a tail portion and a head portion having a conductor contact portion.Type: GrantFiled: September 19, 1991Date of Patent: October 27, 1992Assignee: Square D CompanyInventor: Steven W. Mann
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Patent number: 5090924Abstract: A tubular anode includes an electrical connector formed of a diagonally split two-part generally cylindrical slug. The diagonal slit provides an elliptical wedge interface between the two parts and a jack screw is threaded in one part and extends through an enlarged hole in the other. Tightening the jack screw within the tube causes the two parts to offset and wedge against the inside of the tube. The two parts include an aligned slot which intersects the major axis of the elliptical interface and a lead wire or cable is electrically secured to one of the parts within its slot. The slot is configured to press the lead or cable against the interior of the tube. The lead wire for a string anode extends through the slot of the other part. In the formation of an anode string the tubular anodes are threaded onto unspooled insulated wire or cable, a short portion of the insulation is removed at each connector location, and with the tubular anode offset, a connector is secured to the bare wire.Type: GrantFiled: April 24, 1991Date of Patent: February 25, 1992Assignee: Materials Protection CompanyInventors: Mathew A. Pfaller, Kenneth N. Baker, Richard E. Say
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Patent number: 5018251Abstract: A cable anchorage for anchoring a submarine cable wire strength member comprises conically tapered parts (2,4,5), at least one of which has a surface (2C, 4B), roughened by tungsten carbine grit evenly distributed over and firmly bonded to the surface, prior to assembly of the parts of the anchorage. The grit size is chosen so that a sufficient locking mechanism is achieved but the grit indentations in the wire strength member are not deep enough to weaken the wires (3B, 3C).Type: GrantFiled: November 9, 1989Date of Patent: May 28, 1991Assignee: STC PLCInventor: Charles J. Brown
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Patent number: 4757809Abstract: A pin clamp particularly adapted for use in an external skeletal fixation device to clamp pins inserted in the distal segment and/or proximal segment of a fractured bone for positioning and immobilizing the bone segments to reduce the fracture. The pin clamp employs a wedge lock construction including a block having a tapered, hollow interior which receives a wedge element having opposed, tapered sidewalls connected to a slotted top wall. The pins are inserted between the sidewalls of the wedge element into the slot, and are clamped therebetween as the wedge element is moved into the block. A screw carried by the block threads into a bore in the top wall of the wedge element to move the wedge element in and out of the block. Both the block and wedge element are formed of a composite material and the sidewalls of the wedge element which contact the pins are preferably coated with a grit material having a high coefficient of friction.Type: GrantFiled: February 10, 1986Date of Patent: July 19, 1988Assignee: Orthotic Limited PartnershipInventors: James B. Koeneman, Thomas M. Hansen, Mark Phillips, Allan M. Weinstein
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Patent number: 4598443Abstract: A device for providing a clamping joint comprises two elements (1,2) with complementary threads, each having a flange constituting a clamping surface. Clamping takes place upon relative axial displacement of the elements (1,2) which can be brought about by screws (4) arranged axially in bores in a flange (5) on one element. In order to prevent accidental disengagement of the elements, at least one of the threads adjoins at one end to a part (6) which is wedged against an opposing thread flank when the elements (1,2) are rotated in relation to each other over a predetermined end position.Type: GrantFiled: January 23, 1984Date of Patent: July 8, 1986Assignee: SKF Nova ABInventors: Sture Ostling, Bengt Lundgren
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Patent number: 4471846Abstract: The clamping arrangement has a pair of elements which are provided with mating conical surfaces in the self locking range. The elements can be axially displaced relative to each other by axial clamping screws for clamping purposes. Auxiliary rings are provided between the elements and have through bores for the clamping screws. With the clamping screws removed, the auxiliary rings can be turned to align a tapped bore in one ring and an abutment surface in the other ring with a clamping screw so that this screw can be used for separating the clamped elements from each other.Type: GrantFiled: May 13, 1982Date of Patent: September 18, 1984Inventor: Ralph Mullenberg
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Patent number: 4178687Abstract: A clamp, particularly suitable for orthodontia, comprises a threaded screw member and a threaded nut member which is threadably engageable therewith. The screw member has a notch thereacross to receive a wire therethrough, the notch being directed generally towards one end of the thread on the screw. The notch opens on a surface of the screw for accepting a wire and has a first portion adjacent the opening which is defined by substantially parallel opposing walls, and has a second bottom portion which is adjacent the first portion and remote from the opening, the second bottom portion being generally V- or U-shaped and defined by inclined walls which are directed toward each other and toward the bottom of the notch.Type: GrantFiled: February 28, 1977Date of Patent: December 18, 1979Inventor: Melvin Wallshein
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Patent number: 4145566Abstract: A housing for an electric plug or the like is formed with an axial bore which tapers toward an inlet opening. A pressure member received in the bore for movement toward and away from the inlet opening in conforming engagement with the housing has a face which radially approaches a counter face in the bore for clamping a cable therebetween during axial movement of the pressure member toward the inlet opening. A tubular clamping member, substantially coaxial with the bore of the housing, carries threads matingly engaging threads on the pressure member about the axis. An abutment of the clamping member engages an external rim portion of the housing about the inlet opening and limits threaded movement of the clamping member inward of the bore, whereby the pressure member is moved axially toward the inlet opening, and a cable passing through the tubular clamping member into the bore of the housing is clamped between the face of the pressure member and the counter face.Type: GrantFiled: October 21, 1976Date of Patent: March 20, 1979Assignee: Neutrik AktiengesellschaftInventor: Bernhard Weingartner
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Patent number: 4027939Abstract: A simplified, low-cost connector assembly for attaching tap lines to overhead electrical transmission or distribution conductors is provided which minimizes potential damage to the connected lines by provision of a cable-receiving housing and a complemental line-wedging block received therein along with means for gradually drawing the block into operative wedging position so as to preclude line damage which can occur with connector assemblies using driven-in-place wedge elements. The assembly hereof preferably includes a tapered, generally transversely C-shaped, line-receiving housing, in conjunction with a complementally tapered wedge block and bolt means for gradually drawing the block into tight, line-connecting engagement with the respective cable sections received within the C-shaped housing.Type: GrantFiled: March 3, 1976Date of Patent: June 7, 1977Inventor: Thomas William White
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Patent number: 3973297Abstract: The invention is concerned with cable couplers which enable cables used in the stressing of contiguous concrete construction units to be joined together with the ends of the units close together. The coupler consists of a housing having at least one blind passage therein of generally rectangular cross-section and with one pair of walls oppositely divergent towards the blind end of the passage which houses a wedge assembly co-operating with the divergent walls and adapted to secure at least one cable end in the housing. The invention also provides for the housing to have a further passage therethrough with a pair of walls oppositely inclined to those of the first mentioned passage so that a cable may be similarly secured in the housing from the opposite direction.Type: GrantFiled: September 30, 1974Date of Patent: August 10, 1976Assignee: Triple Bee & Prestress (Proprietary) LimitedInventor: Konstant E. Bruinette
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Patent number: 3939594Abstract: A fish line holder comprising a housing having an internal cavity with a pair of parallel tapering walls into which a wedge is fitted. The wedge has a plurality of rollers along one edge, and a spring which forces it toward the narrow end of the tapering cavity. There is an opening at the small end of the housing, leading into the cavity into which can be positioned a fishing line or cord, usually a monofiliment line. After the cord is inserted in the space between the wedge and the wall of the cavity, the force of the spring pressing the wedge makes it possible to grip the cord. A release rod is inserted in the side of the wedge, which extends to the outside of the housing through a slot which is parallel to the internal surface on which the rollers run. Pressure on the release rod forces it back against the spring toward the large end of the cavity, thus releasing the grip of the wedge on the cord.Type: GrantFiled: August 12, 1974Date of Patent: February 24, 1976Inventor: Lawrence R. Wagner