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 |
| 7344117 | Adjustable lift support apparatus An adjustable lift support apparatus includes a base, a sleeve attached onto the base, at least one meshing device, a shaft, and a support attached at the shaft. At least one groove is formed on an inner surface of the sleeve along a first axial direction. Each mesh... | 03/18/2008 |
| 7281692 | Steam strippers A steam stripper (14) is provided with a support comprising a pole (16) comprised of connected sections (17, 18) and (19). The upper sections 17 and (18) are connected by a resilient spring apparatus (23), and the sup... | 10/16/2007 |
| 7195214 | Stand for display A stand for a display having a base, a supporting case mounted on the base, a supporting member mounted inside the supporting case and having an end seated on the base to support the weight of the display, and a mounting bracket engaged with the the other end of the... | 03/27/2007 |
| 7040831 | Boom positioning mechanism An improved design of positioning mechanism, mountable to an upright, allows smooth, readily accomplished adjustment of the angular, rotational and translational positions of a boom with respect to the upright. A hub is mounted to and rotatable with respect to a bas... | 05/09/2006 |
| 6923410 | Contractible table leg structure The present invention discloses a contractible table leg structure, comprising: an external sleeve; a folding rod, being a rod member with a cross section substantially in successive V-shaped turning surfaces, and having an included angle in the middle, a plurality ... | 08/02/2005 |
| 6675819 | Mounting device for a beach umbrella A mounting device for a beach umbrella includes a hollow tubular base having an open tapered end adapted for penetrating a ground surface and an opposing open end adapted for receiving an elongated mounting post of the beach umbrella. At least one outward... | 01/13/2004 |
| 6527492 | Apparatus for handling, lifting and supporting construction panels An apparatus for handling, lifting and supporting construction panels such as sheet rock or the like includes a pole unit that has telescoping poles supported on a scaffolding unit by supports that are quickly and easily attached and detached from the sca... | 03/04/2003 |
| 6290192 | Adjustable receiver tube An adjustable receiver tube includes an elongated tube having a flat resilient strap extending within the tube from the upper end of the cylindrical side wall. A flange at the bottom of the tube will support an IV pole within the tube, and a threaded shaf... | 09/18/2001 |
| 6186463 | Rib clamping system for display devices A releasable coupling assembly for support ribs associated with sign panels, and the like elongated support members. Force generated by a knob and threaded shaft is applied to a pressure plate through a lever arm. The lever arm is arranged so as to provid... | 02/13/2001 |
| 6082680 | Pedestal seat support The invention is a pedestal mount for a boat seat including means for locking the seat in selected rotational positions or permitting the seat to swivel in either direction. A cylindrical sleeve attached to the seat rotates within the vertical stanchion. ... | 07/04/2000 |
| 5944272 | Bobbin core holder for a bobbin creel A bobbin core holder for a bobbin creel. The bobbin core holder includes a sleeve body securable on a creel rod, on which sleeve body a ring socket is fitted so as to be rotatable into at least one predeterminable rotary position by a releasable spring de... | 08/31/1999 |
| 5560573 | Portable detachable meditation armrest support A portable detachable meditation armrest support including a pair of interconnected armrest supports, a pair of telescoping members, an adjustable sleeve encircling said members for adjusting the overall length forming a monopode, one of the supports havi... | 10/01/1996 |
| 5407249 | Armrest assembly An armrest assembly for attachment to a chair includes a base plate. The base plate can be secured, in a chair of the type including a (i) seat bottom cushion on which a person can sit, (ii) a pedestal assembly supporting the seat bottom cushion, and (iii... | 04/18/1995 |
| 5396993 | Kitchen utensil holder A holder or stand is disclosed herein having a base formed with a central depression and a notched rail for supporting a kitchen implement. A pair of raised receptacles carried on the base may insertably receive other implements while an upright adjustabl... | 03/14/1995 |
| 5154449 | Extensible rod An extensible rod comprising an outer tube, an inner tube fitting in the outer tube and a locking unit consisting of a cylindrical clamp, a movable block, and an eccentric shield. The outer tube and the inner tube are clamped in the locking unit by pivoti... | 10/13/1992 |
| 5139220 | Support stand with sling boom suspension A lightweight support stand particularly suitable for photographic equipment and the like in which a boom is suspended solely by a suspension cable that has its intermediate portion adjustably carried by a retainer at the top of a vertical standard. Oppos... | 08/18/1992 |
| 5078357 | Electric seat lift An electric seat lift mechanism is easily mounted or dismounted from a seat post receptacle by insertion of its depending tube into fixed (but removable) position into the seat post, the depending tube carrying an axially positioned drive nut which is eng... | 01/07/1992 |
| 5037093 | Poolside basketball goal A poolside basketball goal for in-ground swimming pools with a backboard and hoop supported by a support having an extended horizontal component. A support is anchored in the ground by an anchor which is located more than 3 feet away from the in-ground po... | 08/06/1991 |
| 5024303 | Hatchback locking device The locking device may either be used with a conventional liftgate support or incorporated into the design of the liftgate support, to retain a hatchback-type door of a vehicle in an open position. The locking device of the present invention is for use wi... | 06/18/1991 |
| 4818135 | Locking collar for telescoping cylindrical tubes A locking device for securing inner and outer telescoping cylindrical tubes in a selected relationship. A resilient collar attached to one end of the outer tube includes and inner annular flange extending in close-fitting relation between the inner and ou... | 04/04/1989 |
| 4715488 | Collapsible conveyor A collapsible conveyor comprises a frame supporting a plurality of rollers and a support structure comprising a pair of legs pivotally secured to the frame. The conveyor also includes braces which extend between the frame and the legs and maintain stabili... | 12/29/1987 |
| 4589622 | Adjustable support legs Sturdy legs are normally retracted into the housing of an otherwise conventional smoke ejector but are extendable in various adjusted positions to support the ejector freestanding on a supporting surface.... | 05/20/1986 |
| 4576501 | Telescoping rod clamp A clamping or coupling apparatus for clamping an extension rod telescopically extendable from a tubular member includes two separate and independent clamping adjustments. The clamping apparatus is adapted to rotate freely relative to the tubular member, y... | 03/18/1986 |
| 4520981 | Adjustable telescopic support An adjustable telescopic support having a standard providing a hollow core, an elongated telescoping slide bar movable within the hollow core of the standard with the slide bar providing a tapered face extending downwardly and inwardly within the standard... | 06/04/1985 |
| 4405107 | Clamp system for telescoping tubes A novel clamp system for telescoping tubes that is particularly useful with a telescoping centerpost stand adapted to mount, e.g., a music desk or a loud speaker. The novel clamp system is of the split ring type, the split ring being positioned between th... | 09/20/1983 |
| 4163536 | Support device An apparatus for assisting carrying out exact hand movements, especially those performed by a surgeon during complex micro-surgical operations, comprising at least one support accommodated to the human arm or the hand. There is provided only a single upri... | 08/07/1979 |
| 4140415 | Adjustable connector Adjustable connector for connecting two tubular bodies such as pipes includes an outer sleeve connectable to one body, an elastically deformable inner sleeve connectable to the other body and accommodated within the outer sleeve and a fastening element to... | 02/20/1979 |
| 4111575 | Tube coupling Tube coupling for coupling an inner and an outer tube, wherein the inner tube extends into the outer tube and projects out of the terminal end of the outer tube: a receiving member with one sleeve portion that receives the terminal end of the outer tube t... | 09/05/1978 |
| 4085763 | Quad cane A quad cane includes a stabilizing device for improving the strength and rigidity of the cane. The stabilizing device comprises a collar having an interior opening therein and a wing screw which is threadably received in a hole which communicates the inte... | 04/25/1978 |
| 4043139 | Pipe holding tool A tool for positioning and holding pipe to be laid in a ditch at a desired level while the ditch is filled partially with rock, gravel, etc. The tool comprises a rod located in a tubular member and having a pointed end extending out of the tubular member.... | 08/23/1977 |
