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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 |
| 7997215 | Table adjustable in height The invention relates to a table (1) comprising an up-and-down movable tabletop (2) and operating provisions to move the tabletop (2) up and down, characterized in that the operating provisions are located under the tabletop (2) and that ... | 08/16/2011 |
| 7383923 | Elevating load platforms An elevating load platform comprising a base member and a load supporting member interconnected by a linkage means that facilitates vertical movement of the load supporting member generally parallel to the base member, and a plurality of coil springs positioned to u... | 06/10/2008 |
| 7316326 | Tray apparatus for refrigerator A tray apparatus for a refrigerator is provided which optimizes the use of storage space in the refrigerator. A position of the tray within a storage space of the refrigerator is varied through the use of elastic means which moves the tray toward an upper surface of... | 01/08/2008 |
| 7207764 | Wheel lift system A wheel lift system for efficiently lifting and positioning a wheel and tire onto a wheel hub. The wheel lift system includes a first arm and a second arm pivotally attached to one another, a plurality of caster wheels attached to the lower portion of the arms, and ... | 04/24/2007 |
| 7192082 | Portable bench A portable seating device is provided in the form of at least two horizontal planks having respective coupling ends along which such members may be joined. The underside surfaces of these planks are provided with vertical support containment means. Such vertical sup... | 03/20/2007 |
| 7165498 | Vibrating table assembly for bag filling apparatus A vibrating table assembly for an apparatus for filling and weighing bulk bags comprises a bag support table, a vibrating device for vibrating the bag support table, and a lifting device for raising an lowering the bag support table, the lifting device being located... | 01/23/2007 |
| 7070028 | Frequency dependent damper A gas shock absorber has a pressure tube which defines a working chamber. A piston divides the working chamber into an upper working chamber and a lower working chamber. A flow path extends through the piston to provide fluid communication between the upper and lowe... | 07/04/2006 |
| 7032870 | Methods and apparatus for generating force and torque A system for providing support and position control of a monitor. In one embodiment, a method of supporting a monitor includes converting an ascending energy storage member force curve into a substantially constant supporting force against the monitor. In one aspect... | 04/25/2006 |
| 7014197 | Cassette-based money storage and transportation system and apparatus A coin bag storage apparatus including a bag storage cassette tower having a compartment sized to store a plurality of bags, one on top of the next, and a spring-mounted platen located within the storage compartment for receiving each of the bags and progressively l... | 03/21/2006 |
| 6997422 | Stand Methods and apparatus for providing an adjustable balancing force are provided. This mechanism can be used as a lifting force, a counter balancing mechanism or as a horizontal or other force mechanism. A stand in accordance with an exemplary embodiment of the presen... | 02/14/2006 |
| 6997531 | Tray apparatus for refrigerator A tray apparatus for a refrigerator is provided which optimizes the use of storage space in the refrigerator. A position of the tray within a storage space of the refrigerator is varied through the use of elastic means which moves the tray toward an upper surface of... | 02/14/2006 |
| 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 |
| 6817587 | Mobile computer rack A mobile computer rack is constructed to include a mounting plate and a carrier plate relatively slidably coupled to each other, a spring connected between the carrier plate and the mounting plate and adapted to pull the carrier plate and the mounting plate toward e... | 11/16/2004 |
| 6786162 | Space-saver workbench A space-saver workbench is disclosed which is pivotally movable between a work position wherein the table thereof is in a horizontal position to a stored position wherein the table portion thereof is in a vertically disposed position. A pair of springs are operative... | 09/07/2004 |
| 6598545 | Vibration damper for optical tables and other structures A table that includes a damper attached to a first faceplate and a second faceplate. The damper can dampen flexural loads introduced to the table by either shock or vibration. The damper may include a damping layer that is attached to a first plate and a ... | 07/29/2003 |
| 6450360 | Spring-loaded tube assembly A plurality of spring tubes is provided in an assembly to make a worker's practice of "pearl diving" unnecessary. A container has one tube attached in each corner and each tube has an internal coil spring secured at a bottom of an inner chamber but extend... | 09/17/2002 |
| 6398176 | Supporting assembly for articles A supporting assembly includes a mounting seat secured to an object, an inner connecting member having a first end pivotally connected to the mounting seat, an outer connecting member having a first end pivotally connected to the mounting seat by an axle,... | 06/04/2002 |
| 6364330 | Ergonomic platform truck A dual ergonomic platform truck includes a frame assembly having a pair of first and second segments, a pair of guide rods each having a first end connected to one of the first segments and a second end connected to one of the second segments. A pair of p... | 04/02/2002 |
| 6044932 | Ergonomic parts bin elevator with integral springs A device for and method of ergonomically removing parts from a parts bin, so that an operator does not have to unnecessarily bend to remove parts, using an open-ended bin, a platform removably contained within the bin, and a mechanism for lifting the plat... | 04/04/2000 |
| 6019154 | Self leveling operation stage for ultrasonic welding A manufacturing process, such as that used for ultrasonic welding, employs a self-leveling fixture (20) including a base (12) and an operation stage (14) that are separated by leveling devices (16) and 18). The leveling devices include a centrally located... | 02/01/2000 |
| 6017040 | Self-levelling platform for trolley container A self-levelling platform arrangement comprises a platform which may form the base of a trolley container, supported on a biasing mechanism that comprises a scissors jack arrangement incorporating a tension spring to provide the biasing force whereby the ... | 01/25/2000 |
| 5649493 | Device for adjusting the height position of a table top A table includes a table support; a slide guide secured to the table top; a sliding member received in the slide guide for displacements relative to the table top and parallel to its main plane; a stationary table support; first and second link bars artic... | 07/22/1997 |
| 5626206 | Device for and method of vertically adjusting parts in a bin A device for and method of ergonomically removing parts from a parts bin, so that an operator does not have to unnecessarily bend to remove parts, using an open-ended container, a platform removably contained within the container, and a mechanism for lift... | 05/06/1997 |
| 5478043 | Control apparatus for vertical vibration elimination table A vertical vibration elimination table apparatus has a vibration elimination table supported by actuators at four portions thereof. The actuators are operable in response to signals which are fed back thereto and which are indicative of vertical positions... | 12/26/1995 |
| 5421481 | Self-biasing system A self-biasing system for articles has an article support, a frame for controlling the movement of the support and a biasing structure capable of moving the support. The system can be a self-leveling article dispenser with the frame including elongate cha... | 06/06/1995 |
| 5374556 | Flexure structure for stage positioning An apparatus for positioning an operational member, particularly for use in an optical laser system for optically trapping and manipulating microscopic particles in a particle manipulation chamber. A flexure member, is provided which has a pair of substan... | 12/20/1994 |
| 5356110 | Pneumatic isolation systems for damping vertical, horizontal and rotational vibrations Methods and apparatus for isolating a load structure from vertical, horizontal and rotational vibrations of a supporting structure operate with the aid of displacement of a pneumatic fluid from and to a fluid chamber of a pneumatic vibration isolation sys... | 10/18/1994 |
| 5322171 | Dispenser apparatus A dispenser apparatus for trays, plates or the like. The dispenser apparatus includes a top member having an opening therethrough for the trays, plates or the like and includes a base. A plurality of post assemblies are provided with each post assembly ex... | 06/21/1994 |
| 5181620 | Counterbalance mechanism A mechanism for use in counterbalancing a shelf or the like incident to vertical movement thereof along a trackway featuring a linkage assembly and coupling assemblies for effecting a relatively large displacement of the shelf incident to a relatively sma... | 01/26/1993 |
| 5167302 | Truck having vertically movable goods-receiving portion In a truck having a vertically movable goods-receiving portion, a plurality of resilient elements are arranged between an upper beam interconnecting the upper end of a righthand post and the upper end of a lefthand post and lower frames for mounting the v... | 12/01/1992 |
| 5119946 | Cantilever tray dispenser A self-leveling dispenser for trays or the like. At least two parallel, hexagonal posts extend longitudinally. A roller mechanism extends between the two posts, the roller mechanism having a plurality of rollers engaging the hexagonal posts in order for t... | 06/09/1992 |
| 4921202 | Vertical vibration-damping apparatus A vibration-damping floor is supported by one ends of flexible coupling members, such as chains or ropes whose the other ends are connected through guide sprockets and movable spring frames to tension springs set horizontally under the floor. A vertical v... | 05/01/1990 |
| 4909473 | Shock absorber assembly for a table or the like A shock absorber assembly for a table top is disclosed. The table top has on its bottom side a downwardly open cup recess. An insert is positioned in the recess and the insert is connectable to a table leg. A dampening filler material is positioned in the... | 03/20/1990 |
| 4898103 | Desk construction A desk has a vertically adjustable top and at least one vertical guide member movable upwardly and downwardly on a support or frame. A spring leg is disposed between the frame and vertically adjustable desk components. The spring leg is pivoted at one end... | 02/06/1990 |
| 4883249 | Counterbalancing A counterbalancing mechanism allows a weight or constant force to be counterbalanced for any practical linear range of travel, including means for effortlessly adjusting the mechanism for a constant force or load of any practical magnitude. A load support... | 11/28/1989 |
| 4831681 | Sponge supporting device with guide rod springs A device for supporting a sponge has a container filled with liquid, a sponge supporting plate in the container, and a resilient member urging the supporting plate with the sponge away from the liquid and depressable by a user into the liquid to moisten t... | 05/23/1989 |
| 4768762 | Means and method to counterbalance the weight of a body The weight of a pivoted body is counterbalanced by a spring acting on a cam connected to that body to pivot therewith. A band, connected to that spring, attaches to the cam and wraps around the cam. The cam's profile is contoured to produce moment arms of... | 09/06/1988 |
| 4764075 | Load elevator A load elevator for pallets comprising a load supporting platform connected to a base frame through scissor linkages, a pair of compression springs interposed between the platform and the base frame, the capacity of said springs being selected according t... | 08/16/1988 |
| 4729539 | Seat suspension device A seat suspension device for use in an automotive seat which comprises a pair of right and left X-shaped links for connecting a lower frame with an upper frame and a torsion bar journaled to the pivotally-connected portions of the two X-shaped links. The ... | 03/08/1988 |
| 4679760 | Spring arrangement A springing arrangement comprises a coil spring and a spring-engaging member acting thereon between the two ends of the spring and in a direction which differs from the longitudinal direction of the spring, thereby to provide non-linear dependency of the ... | 07/14/1987 |
