Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7073995 | Attachment system An attachment system, which is to be introduced in a mounting opening (5) of a hollow body (3), includes a rear engagement member (4) for engaging from behind holding projection (17.1, 17.2) of the hollow body (3), at least one sto... | 07/11/2006 |
| 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 |
| 7008158 | Bolt or nut locking fastener and fastening system A fastening system and assembly functions as a washer ring components but also provides for locking the bolt head end to prevent rotation of the threaded shaft while tightening the nut. The same device can be used alone on the threaded end of a bolt, or in conjuncti... | 03/07/2006 |
| 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 |
| 5388963 | Flange for high speed rotors The span of the overhung flanges at the rim of the disks of gas turbine engine's compressors are minimized by slotting the one of the adjacent flanges at the distal end to receive the bolt head of the attaching bolt and including an anti-rotational clip a... | 02/14/1995 |
| 5297693 | Closure member locking retainer A closure member for sealing an opening for a cavity in a housing to prevent fluid from being communicated to the surrounding environment. The closure member has a shaft with an end member having a irregular radial surface thereon. A first torque is appli... | 03/29/1994 |
| 5234236 | Pawl assembly A pawl assembly comprising a threaded shaft of noncircular cross section, a pawl of generally elongate shape having a circular through hole, and a clip that is nonrotatably mounted on the shaft and which contacts the pawl to prevent rotation thereof. The ... | 08/10/1993 |
| 5221168 | Device for fixing external part to shaft A device for fixing an external part to a shaft, which clam a boll and roller bearing by a washer and a nut. The washer is provided with a plurality of projecting engageable pawls on the outer periphery thereof and a projecting tongue piece on the inner p... | 06/22/1993 |
| 4787791 | Lock washer for bubble cap assembly A bubble cap assembly is provided with keyways and a special keyed lock washer with locking tabs to securely fasten the bubble cap during operation in a reactor. The unique arrangement also accommodates simple removal for easy maintenance and decoking wit... | 11/29/1988 |
| 4734001 | Locking fastener Locking fastener comprising a threaded part such as a bolt or nut and a locking plate which fits over the bolt or nut and is prevented from rotation by engagement with a stationary object such as a protrusion on the part to be secured. The locking plate h... | 03/29/1988 |
| 4697968 | Locking ring A locking ring for preventing inadvertent unfastening of threaded fasteners comprises a substantially cylindrical ring having a slot extending the entire width of the ring for allowing the ring to be easily compressed to fit into a counterbore that is sli... | 10/06/1987 |
| 4683108 | Locking screw apparatus and method for underwater remote replacement An apparatus and method for under water remote replacement of the screws which secure together first and second structures in the internal region of a nuclear reactor core, wherein the screws are received and counterbored screw bores in the first structur... | 07/28/1987 |
| 4480743 | Conveyor chain and supporting bracket assembly An assembly consisting of a conveyor chain link having sides and ends defining an open center, a supporting bracket having an attachment portion which engages the sides of the link and interlocks longitudinally and transversely within the center of the li... | 11/06/1984 |
| 4315519 | Governor hydraulic pressure supply apparatus for automatic transmissions A governor hydraulic pressure supply apparatus is provided for use with the vehicle automatic transmission system and includes a governor valve mounted on a rotary output shaft from the automatic transmission, the output shaft having an internal input flu... | 02/16/1982 |
