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| Number | Title | Issue Date |
| 7261506 | Washer and threaded fastener assembly incorporating same A washer for a threaded fastener assembly and a threaded fastener assembly incorporating such a washer. The washer includes a body having a central axis including two opposed sides an outer periphery and an inner periphery defining a central aperture extending betwe... | 08/28/2007 |
| 7226259 | Locking fastener assembly A locking fastener assembly comprising a nut and a washer. The nut and washer each have opposed load bearing surfaces which include a series of annularly extending, slightly inclined faces forming shallow undulations around each surface. The load bearing surface on ... | 06/05/2007 |
| 7198445 | Washer with crush zone A conical washer having a crush zone wherein the inner annular projection comprises a top and bottom elevation where the top elevation lies at an approximately 100 to 165 degree angle to the inner annular wall of the washer and the bottom elevation is substantially ... | 04/03/2007 |
| 7192232 | Self-locking fastening device A self-locking fastening device which includes a screw or nut for fastening at least one first part to a second part and a shim (10) which is provided with a central borehole (11). The two surfaces of the shim (10) include rib profiles (12,14... | 03/20/2007 |
| 7168343 | Limited access building connection A limited access building connection for connecting a holding structure and a held structure which includes an anchor member having a threaded end adapted for connection to holding structure. A nut having an inner threaded wall threadably engages the threaded end of... | 01/30/2007 |
| 7168902 | Wedge cam lock washer for threaded fasteners A locking device for a threaded fastener comprises a pair of washers each having a plurality of wedge cam sets that include a base-cam and a raised tooth-cam. When the washers are mated together in use, the wedge cam sets of each washer are placed into confronting e... | 01/30/2007 |
| 7056162 | Anti-loosening device for screw or nut An anti-loosening device for locking the head of a locking screw or nut, in particular for connection of an electrical terminal to a contact lug, wherein the device essentially comprises a plate having at least one catch element rotationally stationary in relation t... | 06/06/2006 |
| 6966735 | Screw mechanism In a screw locking assembly a pair of washers having inclined surfaces are interposed between a screw member on a tightening side and a member to be tightened, with the inclined surfaces being mutually contacted. These inclined surfaces circle around once in spiral ... | 11/22/2005 |
| 6935823 | Anchor nut device for attachment to a structure An anchor nut device for attachment to a structure, the device defining a threaded bore for the reception therein of a corresponding member. The device includes an anchor nut which is fabricated from a first material, the nut defining the bore and a plurality of rad... | 08/30/2005 |
| 6024177 | Sprinkler head escutcheon locking ring An escutcheon locking ring for an automatic sprinkler head having an externally threaded section with a top portion having an engaging member extending therefrom comprises a ring having a plurality of tabs extending from the inner perimeter, and an outer ... | 02/15/2000 |
| 5314279 | Locking fastener A locking threaded fastener of the wedge-action type is disclosed with threaded and threadless nut members with wedge elements therebetween for wedging the nut members apart when the threaded nut member is turned in the loosening direction. In a two-piece... | 05/24/1994 |
| 5190423 | Locking fastener A locking threaded fastener of the wedge-action type is disclosed with threaded and threadless nut members with wedge elements therebetween for wedging the nut members apart when the threaded nut member is turned in the loosening direction. In a two-piece... | 03/02/1993 |
| 5090855 | Locking fastener assembly A locking fastener assembly in which coacting cam surfaces are employed to generate wedging forces in response to backing off movement of the associated nut or washer at the conclusion of the normal tightening operation, thereby urging the nut into tighte... | 02/25/1992 |
| 5011351 | Wedge lock die washer A lock washer, a locking fastener assembly, and a method of providing a secure, inexpensive fastener joint. The lock washer has a convexly conical upper surface including circumferentially spaced cam surfaces separated by radial shoulders and a concavely ... | 04/30/1991 |
| 4283091 | Shock proof fastener assembly for vehicle wheels and other applications A shock and vibration-proof fastener of general application and particularly suitable to hold dual wheels demountably assembled to a cargo vehicle hub. The fastener is designed to isolate the threads thereof from radial and torsion stresses utilizing a sp... | 08/11/1981 |
| 4034788 | Fastener assembly A fastener assembly for use in securing one member to another includes a bolt and a washer telescoped onto the bolt. The washer is formed with a central protruding section and an integral annular flange extending radially outward from the base of the prot... | 07/12/1977 |
| 4031936 | Preassembled spring washer fastener unit A locking fastener unit including a spring washer preassembled to a rotary fastener member with mounting means having an axis disposed eccentrically to the axis of the thread convolutions so that retrograde motion of these threaded fastener units is resis... | 06/28/1977 |
