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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 7338247 | Quick release fastener A releasable fastener for releasably engaging a bolt body has a generally cylindrical sleeve member having an inner surface closely spaced from an outer surface of the bolt body. A latch member having a contact surface is mounted on the sleeve member for movement be... | 03/04/2008 |
| 6974289 | Pressure flank screw and fastening system therewith A male threaded fastening member is provided with depressions in at least one or several helix wraps of the thread adjacent the head, the depressions extending inwardly from an edge of the thread at least part way toward a shank of the male fastening member. In a fa... | 12/13/2005 |
| 6428257 | Lock nut A locking nut includes a threaded main bore for receiving a threaded portion and a number of oblique bores in each of which is positioned a locking pin having a forward end for engagement against the threaded portion. The oblique bore and the associated l... | 08/06/2002 |
| 6217269 | Mechanical latching device A mechanism is disclosed which can be used to selectively establish the amount of resistance to un-screwing associated with common fittings, especially those with high pitch-angle threads. Such a mechanism is useful in a variety of applications, including... | 04/17/2001 |
| 5931621 | Locking mechanism for a rotatable fastener The present locking mechanism for rotatable fastener functions to reliably and inexpensively secure a rotatable fastener in place once it is seated. This is accomplished by the formation of an aperture into the body of the rotatable fastener in a lengthwi... | 08/03/1999 |
| 4725174 | Triple redundant shear bolt A bolt is provided with a radial, spring-loaded pawl, and an associated nut is provided with cooperating detents on its inner diameter that cooperate with the pawl so that the nut does not back off the bolt. The nut is also castellated for insertion of a ... | 02/16/1988 |
| 4681497 | Encapsulated fastener An encapsulated metal bolt comprises a head portion having an encapsulating cap thereon with a plurality of conductive fibers therein electrically isolated from the head but electrically exposed to the surface of a complementary aperture.... | 07/21/1987 |
