Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7315410 | Scanner element having a constant resonance frequency, and optical scanning apparatus and image forming apparatus using such a scanner element A scanner element includes a frame part formed by a substrate, a movable plate formed inside the frame part and a torsion bar swingably supporting the movable plate on the frame part. One of the movable plate and the torsion bar has an adjusting part formed by a pro... | 01/01/2008 |
| 7219882 | Fluid-filled vibration damping bushing A fluid-filled vibration damping bushing including an inner tubular metal member and an outer peripheral sleeve elastically connected via a base rubber interposed therebetween with first and second fluid chambers formed therein. A stopper rubber constituted as a sep... | 05/22/2007 |
| 6927508 | Decoupling device for actuators The invention relates to the decoupling device for an actuator, which has a number of decoupling elements. A securing element is disposed between these decoupling elements. The actuator is fastened to the securing element. The decoupling elements rest against radial... | 08/09/2005 |
| 6910670 | Suspension rubber bushing of vertical mount type A vertical mount rubber bushing including a rubber elastic body elastically connecting inner and outer sleeve, wherein the rubber elastic body having cross sectional shapes viewed in a first direction of prizing force input where rubber legs are affixed to an axiall... | 06/28/2005 |
| 6827343 | Torsion device of an exoprosthesis The invention relates to a torsion device of an exoprosthesis system, with a proximal part (1) which, counter to the action of a resilient torsion element, can be turned in positive and negative directions of rotation (5, 6) in relation to a distal par... | 12/07/2004 |
| 6524692 | Energy absorbing structural laminate An energy absorbing structural laminate comprising: (a) a first layer of composite material comprising x1 plies; wherein at least 0.5x1 plies contain fibers arranged in a shape of a continuous curve; wherein said continuous curve is ... | 02/25/2003 |
| 6343773 | Support structure A support structure includes first and second support members which are interlocked with a body. The second support member is placed in a die such that a hole of the second support member is located at a predetermined position and the body is placed on th... | 02/05/2002 |
| 6324744 | Method of mounting and axially aligning an engine accessory A specialized mounting arrangement for an accessory such as an engine driven air conditioner compressor to an engine is utilized featuring a pair of press fitted bushings in a pair of arms of the mount and a single bolt extending therethrough. The arms of... | 12/04/2001 |
| 6278209 | Decoupling device for an electric motor Decoupling devices for an electric motor in relation to a housing usually have decoupling bushes made of elastic material, which are disposed between a motor mount and the housing and extend along a bush longitudinal axis. The decoupling device includes a... | 08/21/2001 |
| 6095460 | Exhaust system support arrangement A support arrangement for an exhaust system including an upright muffler and an upwardly-extending exhaust stack located behind the cab of a truck. An arm is mounted on a frame member of the truck, and a vibration isolator supported on the arm in turn sup... | 08/01/2000 |
| 5857750 | Seat device A seat device comprises a cushion frame mounted on a floor; a support member for supporting a seat pad; and torsion bars for elastically supporting the support member on the cushion frame, including a torque bar section and an arm section, wherein the tor... | 01/12/1999 |
| 5692727 | Seat device A supporting member in a conventional seat device is supported only by torsion bar arm portions positioned at right and left sides of the device. Accordingly, when a large biased load acts on the device, a sufficient roll rigidity is not obtained and both... | 12/02/1997 |
| 5590506 | Earthquake-resistant architectural system A system for supporting an architectural element such that the supporting structure resists unexpected, infrequent shocks such as might be encountered during an earthquake or other disaster and isolates the architectural element from variations in the lev... | 01/07/1997 |
| 5374012 | Suspension device for linking an on-board equipment item to the structure of a vehicle The invention relates to a suspension device for linking an item of on-board equipment item to the structure of a vehicle, such as a rotary wing aircraft. Advantageously, it comprises first (5) and second (6) elements shaped at least approximately as plat... | 12/20/1994 |
| 5172955 | Bouncing infant seat reclining between upright position and recline position with distinct resilient element An infant seat having a seating surface positionable between upright and reclined orientations, the seating surface being supported by arms which are connected to torsion springs in a base, the torsion springs providing a bouncing motion to the seating su... | 12/22/1992 |
| 5011109 | Suspension device for seat A suspension device for seat which includes a torsion bar interposed between an upper movable frame and a lower base frame, the torsion bar being adapted to bias the upper movable frame upwardly, and a spring provided on a shock absorber which is extended... | 04/30/1991 |
| 4944481 | Balanced monitor stand An adjustable monitor stand for pivoting a monitor about a horizontal axis which is relatively simple to operate and which does not require great effort to adjust is provided. The stand includes a base, a platform for holding the monitor, and a hinge inte... | 07/31/1990 |
| 4890810 | Seat suspension device A seat suspension device which comprises an upper frame, a lower frame, a pair of linkage mechanisms provided between the upper and lower frames, and a torsion bar which elastically supports the seat upon the suspension device. The torsion bar is so arran... | 01/02/1990 |
| 4884777 | Seat suspension device A seat suspension device including an elastic biasing mechanism for elastically biasing a seat frame away from a lower base frame, a locking mechanism for locking the seat frame to thereby place the seat suspension device in a locked state, and a biasing ... | 12/05/1989 |
| 4880201 | Constant natural frequency, mechanical spring seat suspension A suspension system has a base, mountable to the floor of a vehicle, and a frame above the base. The base and frame are coupled by a linkage, for example two, spaced pairs of crossed links. A mechanical spring, preferably in the form of a torsion bar, is ... | 11/14/1989 |
| 4804068 | Vehicle elevating apparatus and method of assembly thereof A vehicle elevating apparatus constructed with a pair of independent runway carrying parallelogram assemblies each being provided with raising and lowering motor of pressure fluid type, and a torsionally stiff component operatively connecting the parallel... | 02/14/1989 |
| 4796950 | Tilt mechanism, particularly for knee-tilt chair The seat and pedestal of a chair are joined by a knee-tilt mechanism which includes a first support fixed to the underside of the seat adjacent the front edge thereof, and a second support fixed to the pedestal and having a sidewardly extending support tu... | 01/10/1989 |
| 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 |
| 4720139 | Variable response load limiting device An energy absorbing device used as a load limiting member in a structure to control its response to applied loads is disclosed and functions by utilizing a spool assembly 20 having flanged ends 36 and an interior cavity 34 of sufficiently large diameter t... | 01/19/1988 |
| 4714228 | Self-adjustable supplemental support system for a cylindrical container in a housing A self-adjustable supplementary support system for a cylindrical container coaxially disposed in a cylindrical housing by upper flanged supports has a plurality of outwardly extending bracket units on the external surface of the container which coact with... | 12/22/1987 |
| 4691782 | Methods for impact and vibration damping and articles therefor This invention relates to a method of and devices for impact and vibration damping and, more particularly, to devices composed of an elastoplastic material including the characteristics of damping, heat and pressure dimensional stability, and moisture non... | 09/08/1987 |
| 4666121 | Spring-tilt mechanism for a chair or seat The spring-tilt mechanism comprises a support frame (4), a seat portion (1) tiltable on the support frame (4) about a substantially horizontal axis (2) between a first and a second position, e.g. defined by stops (13, 13'). One end (15') of a torsion spri... | 05/19/1987 |
| 4664352 | Suspension device for vehicle seat A suspension device for a vehicle seat has a lower frame secured to a vehicle floor, an upper frame disposed above the lower frame in parallel for mounting the vehicle seat, link plates disposed in parallel on the front side and the rear side of a vehicle... | 05/12/1987 |
| 4616799 | Automatic recovery swing sign structure A yieldable highway swing sign is described which swings out of the way when struck by farm equipment or other objects such as wet snow from snow plows. The sign has a torsion bar which returns the sign to its original position after being struck. The sig... | 10/14/1986 |
| 4605334 | Linkage mechanism for coupling two movable members A mechanism is disclosed to provide pivotal motion between two movable members. The mechanism includes a hemispherical yoke connected to one of the movable members. A center support is connected to the remaining movable member and is nested within the yok... | 08/12/1986 |
| 4585216 | Linear actuator suspension system The shaft of a linear actuator driven by a force motor preferably electromagnetic or hydraulic has a bifurcated arm positioned with one of the bifurcations on each side of the shaft and with the opposite end of the arm securely affixed to a torsion bar. T... | 04/29/1986 |
| 4575036 | Advertising stand The disclosure is directed to an advertising stand defined by a pedestal and a frame, the pedestal including a pair of legs bridged by a strut and the frame being adapted to receive therein a poster or the like, a pair of L-shaped brackets carried by the ... | 03/11/1986 |
| 4535964 | Vibration damped suspension for a drive aggregate of a motor vehicle in a body structure A vibration-damped suspension of a drive aggregate in the body structure includes a forward and rear bearing installation; the forward bearing installation supports the transmission by way of two bearing supports whereas the rear bearing installation incl... | 08/20/1985 |
| 4498656 | Universal mechanical linkage A universal joint suspension element has four torsion arms, extending from a central location, forming a substantially planar member. Clamping means with a plurality of grooves fasten the member. The grooves are patterned such that the torsion arms are se... | 02/12/1985 |
| 4438978 | Tilt back mechanism for a chair The subject invention relates to a tilt back mechanism for resiliently controlling the rearward motion of a chair. More particularly, the subject mechanism includes a planar yoke having upstanding braces formed on the side edges thereof. A rocker plate is... | 03/27/1984 |
| 4431157 | Pivotal adjustment mechanism A pivotal adjustment mechanism is disclosed for connection to two mutually movable members. More particularly, an adjustment mechanism is disclosed providing torsionally restricted motion in all axes. The composite structure includes a plurality of tubes ... | 02/14/1984 |
| 4236752 | Rocker swivel assembly for chairs A rocker swivel assembly for mounting a chair on a lower support for both rocking and swiveling movement of the chair. The assembly includes a one-piece plastic torsion bar unit having a center section and a pair of end sections. The end sections are secu... | 12/02/1980 |
| 4235408 | Swivel-chair frame A swinging-seat swivel chair includes a vertical stud that carries a horizontal hollow pin at the end of which are pivoted two supporting arms for a seat. A torsion bar is housed in the interior of the pin with one end coupled to the pin and the other end... | 11/25/1980 |
| 4185803 | Pivotable adjustment mechanism Pivotable adjustment mechanism is provided for the connection of two mutually moveable members. Such members can be a seat portion and a base support portion of a chair, two cooperating, shaft forming members of an apparatus, a machine, etc. The adjustmen... | 01/29/1980 |
| 4161305 | Tilt chair control mechanism A control mechanism for a tilt seat chair includes a control body supported in a relatively stationary position by a fixedly attached vertical post member. A torsion unit comprising a pair of resiliently urged concentric sleeves extends through opposed si... | 07/17/1979 |
