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.
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 |
| 7377555 | Undersea conduit coupling with passageway gate A coupling for tubular goods having male and female coupling halves adapted to provide a straight-through conduit path when joined together. In a preferred embodiment, the male member has a sliding gate which opens automatically when the coupling halves are mated an... | 05/27/2008 |
| 7316430 | Connecting mechanism A connecting mechanism for two parts, which are at least partially insertable into one another, presents a cam-operated component, which runs on bearings and which is adjustable between a passive and an active position, on the one part, for shifting a number of cont... | 01/08/2008 |
| 7243956 | Expandable band and locking mechanism The expandable band is used to secure a sealing element within a generally cylindrical structure, such as a pipe or manhole, or other round hole. The expandable band includes a band body having a first band end portion and a second band end portion. The first band e... | 07/17/2007 |
| 7083201 | Junction plate assembly for undersea hydraulic couplings An apparatus for simultaneously moving male and female coupling members attached to manifold or junction plates together or apart includes sloped cam surfaces on the first or rear junction plate, a central shaft having cam followers that move up the sloped cam surfa... | 08/01/2006 |
| 6471250 | Junction plate assembly for undersea hydraulic couplings An apparatus for moving together simultaneously male and female coupling members attached to manifold or junction plates is disclosed. The apparatus includes a sloped cam surface on the first or lower junction plate, and a central shaft having a cam follo... | 10/29/2002 |
| 6168212 | Twist-lock connector for adjustably interlocking telescopic tubular members A twist-lock connector for adjustably connecting interlocking telescopic tubular members includes a camming surface on the interior surface of a rotatable member which cooperates with the camming member of a seating member attached to a first tubular memb... | 01/02/2001 |
| 6090190 | Closure systems for chromatographic columns A device for establishing a flange connection, having a bearing which can act on a first flange, a counter-bearing which can act on a second flange, and a connecting lever between the two bearings is described. The invention is distinguished by the fact t... | 07/18/2000 |
| 5988697 | Mechanism for uniting valve parts A cam mechanism couples flat-faced, male and female couplers while minimizing the tendency of a pressurized fluid from exerting a force tending to resist the coupling. Internal valve assemblies within the couplers are maintained closed during the coupling... | 11/23/1999 |
| 5868439 | Distribution header for potable water and hot water space heating A water manifold is usable in the construction of a fluid-based heat-transfer system for space heating, the supply and distribution of potable water, and other applications. The water manifold is formed from a number of elements in a flexible manner, in t... | 02/09/1999 |
| 5868441 | Rotatably locking pipe coupling assembly A coupling for attachment to the end portion of a pipe (1) having circumferentially directed shoulder (3a) in such end portion includes a coupling body (6) which receives the end portion of the pipe (1) therein and a set of jaw members (24E-27E) which, af... | 02/09/1999 |
| 5387017 | Coupling for attachment to the end of a pipe for securement to the pipe or for joining pipes together A coupling for attachment to the end portion of a pipe having a circumferential shoulder in such end portion includes a coupling body which receives the end portion of the pipe therein and a set of jaw members which, after the end portion of the pipe is r... | 02/07/1995 |
| 5310225 | Clamping connection made of plastic A releasable connection made of plastic includes a sleeve-shaped central body having a first end connectable with a tube-shaped part and a second end axially receiving a junction piece having a circumferentially extending clamping rib. A rotatable clampin... | 05/10/1994 |
| 4762343 | Tube connector A tube connector has a cylindrical socket for mounting in a hole of a plate and a connector securable to a desired one of a plurality of radially spaced-apart mounting positions of the socket and having opposite end cylindrical portions for tube connectio... | 08/09/1988 |
| 4758027 | Recreational vehicle sewerline adapter An adapter for coupling a flexible corrugated drainpipe to a sewage disposal site inlet, includes a hollow tubular member having an opened drainpipe end portion adapted to engage threadably an end of a corrugated drainpipe. A hollow adapter member has an ... | 07/19/1988 |
| 3995896 | Flexible joint for conduit A flexible joint for conduit includes inner and outer conduit members having telescoped end portions. The end portion on one member has a generally spherical surface portion facing toward the end portion of the other member and lying generally on the surf... | 12/07/1976 |
