William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 8172496 | Locknut system A locknut system having a projecting screw threaded member with a first external thread. A nut is mountable on the projecting screw threaded member by means of a corresponding thread. A second different screw thread is formed on the projecting screw threaded member.... | 05/08/2012 |
| 7270509 | Fastener assembly A fastener assembly includes a threaded bolt and a locking nut assembly. The threaded bolt includes at least one longitudinal groove. The locking nut assembly includes a nut adapted to threadingly engage the bolt, a locking ring adapted to engage the bolt and the nu... | 09/18/2007 |
| 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 |
| 7172380 | Wheel nut assembly A wheel nut assembly includes a stud (1), a main wheel nut (4) mountable on threads (3) provided on the stud, and a retaining nut (6) engageable with threads (5) provided on the stud to prevent accidental loosening of the wheel nut... | 02/06/2007 |
| 7090454 | Ratchet interlocking housing A fastener, such as a housing, for mounting to a structure, such as a panel, that has an aperture formed therethrough. The fastener includes a shank member and an annular nut member that is configured to align coaxially with the shank member. The shank member is ins... | 08/15/2006 |
| 6994503 | Quick-lock nut for a disc-like tool A quick lock nut (1) for positive friction locking securement of a disc-like tool (2) to an external thread (3) on a working spindle (4) driven about an axis of rotation (A), having an associated inner threaded part (5) and a manua... | 02/07/2006 |
| 6976816 | Combination lock washer and spindle bearing assembly The present invention relates to a connection between a spindle and a bearing assembly to retain the bearing assembly on the spindle. A combination lock washer and spindle bearing assembly is provided to include a spindle, thrust washer, lock washer and nut in which... | 12/20/2005 |
| 6860688 | Lockable nut system A lockable nut system for use with threaded steel bar which includes a screw threaded nut for engagement with the threaded steel bar and a locking member which is slidably engageable with the bar. The locking member is adapted to resist rotation about the bar and is... | 03/01/2005 |
| 6662822 | One-way nut fastener A novel, one-way nut fastener including a nut body with a side wall that is internally threaded and lobes that extend from the side wall of the nut body. Each lobe has a flat portion that extends substantially radially away from the side wall and a curved... | 12/16/2003 |
| 6346114 | Adjustable length member such as a cap of a lancet device for adjusting penetration depth Adjustable length element includes a first member having threads and a second member having threads. The adjustable length member also includes at least one protrusion on one of the first member and the second member, with the at least one protrusion bein... | 02/12/2002 |
| 5092725 | Locking fastener A two member threaded fastener includes integral ribs and/or locking fingers formed concentrically around threaded portions of the two members which make up each fastener. The ribs and/or locking fingers interferingly interengage one another as the two me... | 03/03/1992 |
| 4946181 | Safety device for the steering units of bicycles and the like A safety device for bicycles, for preventing unscrewing, comprises a ring element which can be mounted coaxially on the outer ring of the upper steering bearing and on the lock nut to lock them in position on the tubular sleeve of the fork mounted rotatab... | 08/07/1990 |
| 4557441 | Band tensioning device A tensioning assembly for applying tension to a band-type clamp includes a T-bolt having a shank portion and a T-head portion. The T-bolt is adjustably mounted to a first end of the band clamp and a keeper constructed and arranged to receive the T-head po... | 12/10/1985 |
| 4505628 | Bearing locknut A bearing lockout assembly having a locking cup piece which maintains locking keys in retentive association in counterbores of a lockout is disclosed. The locking cup piece is keyed on its inner diameter to a shaft and provided on the edge of its outer di... | 03/19/1985 |
| 4324036 | "Method of making orthodontic screw-type device" An orthodontic screw-type biassing device comprises: a first member having an internally threaded bore, the threaded bore comprising first and second threaded portions adjacent each other in the axial direction of the bore, the first and second threaded p... | 04/13/1982 |
| 4312145 | Replaceable fastener for cover plates and the like The push frame (12) of a tractor-scraper (10) normally has a plurality of cover plates (14) relasably secured therebelow to provide access internally of the push frame. In standard practice, the cover plates are secured to the push frame by a plurality of... | 01/26/1982 |
| 4285377 | Safety bolt A safety bolt having a headed end, a shank, and a second end with means near the second end to hold the bolt in a hole in a workpiece. An axial passage opening into the second end intersects a laterally-extending passage spaced therefrom, and a dog fits i... | 08/25/1981 |
| 4278120 | Safety bolt A safety bolt having a headed end, a shank, and a second end with means near the second end to hold the bolt in a hole in a workpiece. An axial passage opening into the second end intersects a laterally-extending passage spaced therefrom, and a dog fits i... | 07/14/1981 |
| 4255008 | Electrical connector assembly having anti-decoupling device An electrical connector assembly that is readily coupled or uncoupled is provided with means for retarding premature uncoupling thereof. The connector assembly comprises a first shell 100 having a flange 140 thereabout and bosses 111 on the periphery ther... | 03/10/1981 |
| 4121700 | Disc brakes for vehicles In a disc brake of the kind in which the clamping member straddling the disc consists of pressure plates located on opposite sides of the disc and interconnected at their outermost ends by draw-bars, each draw-bar is provided at one end with a threaded po... | 10/24/1978 |
| 4112992 | Safety bolt A safety bolt having retention means to prevent its removal from a hole unless the retention means is released. The bolt includes a solid shank, and the retention means, which is outside the hole, has a slot with a pivoted latch means which is biased to m... | 09/12/1978 |
| 4010922 | Portable post support A portable post support for cartridge reloading apparatus and like bench-type apparatus includes a central post preferably having threaded upper and lower ends. On the upper end of this post is mounted a collar member which is selectively locked in a desi... | 03/08/1977 |
| 3992259 | Fuel assembly for a nuclear reactor A nuclear reactor fuel assembly having an easily dissassembled threaded connection between the end fitting and the control rod guide tubes. More specifically, the threaded connection is formed between the upper and/or lower alignment posts and the guide t... | 11/16/1976 |
| 3953267 | Safety lock bolt A bolt, lock washer and nut combination which will not loosen under vibration. The bolt includes a pair of longitudinally extending slots which slidably receive inwardly projecting lugs of the lock washer. A plurality of leaf springs integrally mounted to... | 04/27/1976 |