...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 7147417 | Slide mechanism A trailer is configured with a slide mechanism operable to slidably couple a tie-down assembly with the trailer. The trailer includes a trailer frame configured with an axle and a pair of wheels for transporting a load over a distance. The slide mechanism includes a... | 12/12/2006 |
| 7098426 | Electric heating device with heating zones An electric heating device is adapted to be used in particular as an auxiliary electric heating for motor vehicles. The heating device comprises a plurality of PTC heating elements arranged in a plane of said heating device. The PTC heating elements are in electric ... | 08/29/2006 |
| 7066097 | Worksurface support system with power and communication capability and front and rear access covers A table or desk includes a worksurface and leg structure, and a wire management arrangement located below the worksurface. The wire management arrangement includes upper and lower wire management members that support wires or cables for providing power and/or commun... | 06/27/2006 |
| 6619078 | Barrel lock A barrel lock for locking two structures together that includes two lock portions, each portion being generally cylindrical and elongated, one of which is substantially solid and one of which is substantially hollow. The first lock portion has one section... | 09/16/2003 |
| 6524147 | Power assist marine steering system A power steering system for a watercraft comprises a hydraulically actuated, unbalanced steering cylinder assembly, a pressure source, and helm that is spaced from the steering cylinder assembly. The helm includes a helm cylinder having a slave chamber fl... | 02/25/2003 |
| 6471476 | Centrifugal trash pump A centrifugal pump includes a volute and an impeller that are disposed in a pump chamber accessible through an access opening in the front wall of the pump's casing. The access opening is normally closed by a cover attachable to a front wall of the casing... | 10/29/2002 |
| 6441599 | Reference point locator for residential and commercial construction A portable electronic reference point locator facilitates location of a reference point, located on one side of a structure (such as a wall, floor or ceiling), from the opposite side of the structure. The system is particularly useful when installing new ... | 08/27/2002 |
| 6368016 | Concrete finishing trowel having an electronically actuated steering assembly A self-propelled concrete finishing trowel has a power steering control system that steers the machine by tilting the driven shaft(s) of the rotor assembly or assemblies of the machine without requiring the imposition of fatiguing actuating forces by the ... | 04/09/2002 |
| 6365982 | Apparatus and method for positioning an engine throttle A method for controlling the speed of an engine driving a generator supplying electrical current to a load includes the steps of monitoring the current, increasing the speed when the current increases and decreasing the speed when the current decreases. T... | 04/02/2002 |
| 6352004 | Working device with mass balancing at the crank mechanism A working device, especially a ramming device for compacting soil, or a hammer, has a crank mechanism for producing a controlled vibration. The crank mechanism is coupled with a set of springs. According to the invention, the crank disk belonging to the c... | 03/05/2002 |
| 6325308 | Refiner disc and method A refiner disc and segment for a rotary disc fiber refiner which has a plurality of radial fields each having an angular extent no greater than 30° and preferably no greater than 22° for reducing the amplitude and duration of load swings that take place... | 12/04/2001 |
| 6298526 | Tether clip and method of securing the same A securing member or tether clip for swagging a table cloth, fabric or other similar material, has a base for gathering the table cloth to form a swag. The base includes a first end and a second end. A first arm is swingably connected to the first end of ... | 10/09/2001 |