Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5215336 | Coupling joint assembly with integral retention mechanism A locking assembly for fastening two components together, such as a fluid coupling assembly, is disclosed. A first member has a serrated annular surface and fastening threads adjacent a bearing surface. A second member has a flexible projection or project... | 06/01/1993 |
| 5143499 | Deformable cylinder locknut A temperature-sensitive, deformable cylinder locknut for use in high temperature applications associated with the operation of a gas turbine engine provides a secure fastener lock which resists torsional and vibrational stresses which may otherwise act to... | 09/01/1992 |
| 4940377 | Laminated nut having cage with nested fingers and method of manufacture A laminated nut comprising a plurality of conical spring discs or spring washers and a cage for receiving and holding the spring discs in a stacked, aligned relationship to define a central opening threaded to the matably received upon an associated threa... | 07/10/1990 |
| 4930962 | Nut and stud assembly A nut and stud assembly for securing workpieces via threaded engagement of the stud with one of the workpieces and engagement of the nut with another of the workpieces and with the nut preassembled on the stud with the stud having a stop preventing the nu... | 06/05/1990 |
| 4759237 | Self-locking nut and tightening tool A self-locking nut is provided having, at its periphery, a number of longitudinal channels (3) with semi-circular section intended to cooperate with drive balls carried by an appropriate tightening tool, said balls causing, at the end of tightening, the f... | 07/26/1988 |
| 4013110 | Locking thread Threads for a fastener of a type having an opening in one member with internal helically-shaped threads around the inner periphery thereof, and another member having helical threads around the outer periphery of a cylindrical portion thereof, wherein the ... | 03/22/1977 |
