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| Number | Title | Issue Date |
| 6325740 | Toroidal-type continuously variable transmission The hardness of the outer peripheral surface of a small-diameter portion 47 and one side surface of a collar portion 52, which respectively rub against a belleville spring 39a, is set at HRc45 or higher, thereby enhancing the wear resistance of these surf... | 12/04/2001 |
| 6132153 | Zero on prevailing torque nut A lock nut having a body member with a threaded axial bore and a washer having an axial opening coupled to a bottom end portion thereof so that the opening of the washer is aligned substantially with the threaded axial bore. The washer has one or more fin... | 10/17/2000 |
| 6019559 | Fastener having spiral shaped collar portion An improved fastener comprising a head portion, a flange portion, a shank portion which extends through two aligned apertures formed in adjacent panels and a collar swaged on the shank portion. The shank portion includes a gripping portion having a plural... | 02/01/2000 |
| 6015253 | Multiple washer nut and method of making A cage (28) constructed from a metal blank 26 for encompassing a plurality of nested conical washers (43) having a common threaded bore to form a nut (28). The cage side walls are free of separable openings (22) that would result in relaxation ("blossomin... | 01/18/2000 |
| 5915902 | Undeformed lock nut with slot A lock nut threadably engageable and lockingly retainable about a threaded shaft extending through a workpiece, the lock nut having at least one deformable slot disposed on a side portion thereof and disposed transversely relative to the lock nut bore axi... | 06/29/1999 |
| 5863142 | Applicator device with self-tapping piston The invention relates to an applicator device for applying, e.g., a viscous fluid or a gel, with the use of a self-tapping piston. The device comprises a piston provided with a blade, the cutting edge of which is inclined in relation to the longitudinal a... | 01/26/1999 |
| 5735655 | Lock nut assembly for vehicle axles A lock nut assembly for vehicle axles includes a pair of cooperative annular nut members hang threads formed on the inner peripheral surfaces compliment--and cooperating with the externally threaded shank of axle spindle. The nut members are coupled toget... | 04/07/1998 |
| 5725076 | Spring brake actuator and caging bolt therefor A connector for a spring brake actuator comprises a threaded bolt having at least one flat portion on an outer surface thereof, a nut having a threaded central aperture threaded onto the bolt, and an embossment on the nut, extending inwardly of the centra... | 03/10/1998 |
| 5700121 | Self-locking nut The self-locking nut comprises an hexagonal outer case (10) having front and rear open faces, and a set of cup-shaped or tapered spring members (14a, 14b) having threaded bores (17) axially aligned with the front and rear openings of the case (10). At lea... | 12/23/1997 |
| 5692863 | Self-locking preload controlling nut A self-locking internally threaded nut has a deltoid shaped locking section having circumferentially spaced protrusions. The protrusions form a surface adapted to be engaged by a deltoid driver which tightens the nut onto a bolt to a predetermined axial l... | 12/02/1997 |
| 5669746 | Fastener having spiral shaped collar portion An improved fastener comprising a head portion, a flange portion, a shank portion which extends through two aligned apertures formed in adjacent panels and a collar swaged on the shank portion. The shank portion includes a gripping portion having a plural... | 09/23/1997 |
| 5609456 | Locking nut A locking nut includes a main ring having a threaded bore, a front end face at one end of the bore and a counterbore at the other end of the bore. Actually, the threaded bore opens into the counterbore through a recess which in turn opens out of a shoulde... | 03/11/1997 |
| 5454674 | Lock nut having locking screw A lock nut includes a nut body (10) having outer (12) and inner (14) circumferential surfaces. The inner surface (14) defines a screw-threaded axial through-hole that can be mounted on an externally threaded shaft. A plurality of blind bores (18) is forme... | 10/03/1995 |
| 5452974 | Deformable locking fastener system and method of use An improved deformable locking fastener system comprises a fastener, a deformable collar and a dedicated installation tool. The fastener has a threaded exterior defining a plurality of axial flutes which are configured to prevent of the collar from premat... | 09/26/1995 |
| 5447398 | Fixing means A nut includes a first half having a short shank with an internal screw thread therethrough and an external screw thread thereon and a second half with a threaded bore. The internal screw thread of the first half has a first pitch while the external screw... | 09/05/1995 |
| 5383525 | Threaded ring retention mechanism A method of manufacturing a rolling cutter drill bit of the kind where each cutter is rotatably mounted on a bearing spindle on the bit body and is retained on the spindle by a threaded retention ring in screw-threaded engagement with the cutter. The rete... | 01/24/1995 |
| 5366331 | Shape memory lock fastener A lock fastener includes a tubular collar having a plurality of protuberances extending radially inwardly from an inner surface thereof and adapted for cooperating with a bolt to retain the collar thereon. A lock ring surrounds an outer surface of the col... | 11/22/1994 |
| 5256014 | Nut threaded fastener for applying a predetermined preload Six lobes of a nut have axial surfaces falling on six tangent cylinders of equal radius and having axes lying on a right cylinder concentric with the axis of the nut. The surface of a second concentric right cylinder having a radius greater than the first... | 10/26/1993 |
| 5232323 | Removable threaded fastener with locking plate The present invention provides a threaded insert assembly with a locking plate having a non-circular shape and a non-serrated outer edge instead of a conventional circular shaped locking ring having a circular serrated outer edge. The non-circular locking... | 08/03/1993 |
| 5228817 | Lightweight lockbolt fastener system An improved lockbolt fastener system wherein the pin has a threaded section with at least one axial slot to provide an anti-rotation lock. The wall of the collar has a plurality of axially extending grooves extending radially outwardly from the collar int... | 07/20/1993 |
| 5145300 | Deformable locking fastener and method of use An improved deformable locking fastener system comprises a bolt, a deformable collar and an installation tool. The bolt has a threaded exterior for engaging the collar. The collar has an axial bore threaded to engage the bolt. The exterior of the collar i... | 09/08/1992 |
| 5061132 | Self-locking fastener A self-locking fastener system comprises a pin for receipt in a hole in a workpiece and having an external thread which mates with a collar having an internal thread for carrying a tensile load. A plurality of helically extending flutes in the external th... | 10/29/1991 |
| 5035852 | Tapered leaf support pin for operating plant guide tubes A mounting system for removably mounting the lower flange of a control rod guide tube over an opening in the upper core plate of a nuclear reactor includes support pins having first and second pin portions. The first pin portion passes through the guide t... | 07/30/1991 |
| 5011352 | Deflection type thread lock for a threaded fastener A fastener includes a threaded pin and an internally threaded collar. The threads can freely be run without impediment during tightening. After the fastener is tightened, a tool engages a shoulder on the collar and presses a deflector against the collar o... | 04/30/1991 |
| 4981642 | Apparatus for form-locking torsion prevention in screw connections An apparatus for form-locking torsion prevention in screw connections includes a bolt with a standard bolt thread and a special nut having a free end and nut threads. A thin-walled sheath is disposed on the free end of the special nut. An integral cross-s... | 01/01/1991 |
| 4790703 | Prevailing torque fastener assembly A tri-lobular section of a bolt receives a mating tri-lobular bore of a washer to prevent the washer from rotating. Roll formed male threads on the tri-lobular section of the bolt receive a cooperating nut. The nut has a base shaped for wrench engagement,... | 12/13/1988 |
| 4682520 | Mechanically lockable fastener assembly Disclosed is a mechanically lockable fastener assembly for maintaining workpieces assembled, when an elongated bolt with threads formed along a length thereof, and substantially axially aligned rotation resisting surfaces formed along another length there... | 07/28/1987 |
| 4086946 | Locking nut A locking nut provided with a conventional nut body having two end faces and a longitudinal threaded bore, locking means comprising at least one slot disposed in an end face of said locking nut and means for uniformly deforming the opposite walls of the s... | 05/02/1978 |
| 4069854 | Locknut with segmental locking elements There is disclosed locknut construction comprising a nut of form and size similar to a usual nut which includes a nut body and locking section integral therewith, said section including segments extending angularly, radially, inwardly, which are of pre-de... | 01/24/1978 |
| 4043369 | Edge deformable lock nut A lock nut, which is relatively free running as it is screwed onto a male threaded member, provides a two-way locking action as it is tightened to abutment with a confronting load bearing surface, with the result that a breakaway torque that is a high per... | 08/23/1977 |
| 4033394 | Clamping split lock nut A threaded nut having a through radial slot bridged by a screw and a diametrically opposite partial radial slot that leaves a cross-sectional area of the nut which provides a tensile strength that is related to the ability of the screw to close the throug... | 07/05/1977 |
| 4005740 | Rotation resistant nut A rotation resistant nut having an internally threaded nut body and having a portion of the exterior surface of the nut body provided with an irregular configuration. The rotation resistant nut is adapted to be used as an insert-type nut and upon installa... | 02/01/1977 |
| 3989082 | Nut with asymmetric groove means A free spinning nut is formed with an asymmetric, double size recess in its bearing face. Also, I have discovered flutes in its side faces so as to enhance its holding capacity, particularly when used against softer material.... | 11/02/1976 |
