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Class 267/225 - Plural mechanical springs for biasing vehicle parts


Subclass of Class 267 - Spring devices
Definition: Spring device including a second discrete nonfluid spring
No. of patents: 50
Last issue date: 04/22/2008


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NumberTitleIssue Date
7360776Method and apparatus for rebound control
A stabilizing apparatus and method that replaces the existing shock absorber of a road vehicle that works to resist the initiation of body roll during cornering. It seeks to counter act the forces being generated by the vehicle suspension springs that exacerbate the...
04/22/2008
7357380Anti-vibration element
In order to reduce the formation of inherent vibrations in the coil spring in an anti-vibration element, in particular for a manually operated tool such as a chainsaw, a parting-off grinder or similar device and having a coil spring, an additional mass is positioned...
04/15/2008
7355307Rotary transformer for supplying electric power to a superconducting rotor
A device for supplying electric energy to at least one superconductor, with the superconductor being cooled in a cooled region to at least one predetermined temperature for achieving superconductivity, includes at least one electric energy source, and a transformer ...
04/08/2008
7350774Long travel, high force combination spring
A long travel, varying spring rate combination spring includes two differing rate springs connected end-to-end in such a way that the lower rate spring is compressed until positive engagement of a plunger with an intermediate flange member occurs with the higher rat...
04/01/2008
7287626Buffer device for elevator
In a buffer device for an elevator, a hydraulic buffer that alleviates shock generated when a traveling body impacts at the bottom of a hoistway is located at the bottom of the hostway. Provided between the traveling body and the bottom of the hoistway is an elastic...
10/30/2007
7278310Non-invasive measurement system
A non-invasive piston-cylinder measurement system of a cylinder and a piston mounted for axial movement within the cylinder. The cylinder comprises a non-magnetic cylinder wall. A magnet is mounted within the piston. A plurality of magnetically activated switches, s...
10/09/2007
7249776Opposing spring resilient tension suspension system
A suspension and method applies the unsprung weight of the wheels and axles to reduce the motion of the sprung weight of chassis. The suspension has a load bolster supporting the sprung weight at a ride height and a rebound member between the wheel axle support and ...
07/31/2007
7237780Apparatus for adjusting vehicle height
An apparatus for adjusting vehicle height, the apparatus being disposed between a vehicle body and a wheel assembly, the apparatus including a first suspension coil spring adapted to be connected to the vehicle body, a second suspension coil spring adapted to be con...
07/03/2007
7201260Subassembly for the amplitude-dependent absorption of shock
A subassembly for the amplitude-dependent absorption of shock, especially in a dashpot for a motor vehicle with a piston and an oscillating piston rod. The piston (3) is accommodated in a housing (2), partitioning the housing into two compartments (...
04/10/2007
7174804Positioning mechanism for tilt steering
A positive lock mechanism having a compression spring rod with a housing, a rod member having an inner end in said housing and an outer end axially outwardly of a housing end. One or more compression springs extend between a guide member and an end of the housing. A...
02/13/2007
7140601Independent and integrated compact air-bump stops
A compact air-bump stop (jounceshock) provides improved motor vehicle suspension system accommodation of jounce and rebound than is provided than by a conventional shock absorber, bump cushion and/or air-bump stop. In an independent jounceshock, a primary shell and ...
11/28/2006
7032913Opposing spring resilient tension suspension system
A suspension and method applies the unsprung weight of the wheels and axles to reduce the motion of the sprung weight of chassis. The suspension has a load bolster supporting the sprung weight at a ride height and a rebound member between the wheel axle support and ...
04/25/2006
6830256Method and apparatus for rebound control
A stabilizing apparatus and method that replaces the existing shock absorber of a road vehicle that works to resist the initiation of body roll during cornering. It seeks to counter act the forces being generated by the vehicle suspension springs that exacerbate the...
12/14/2004
6702265Balanced suspension system
A balance suspension system for a vehicle having a body and at least four wheels (FR, FL, BR, BL) independently supported for movement between upper and lower positions relative to the body, the suspension system includes a balance mechanism adapted to su...
03/09/2004
6491292Piston and cylinder assembly
A piston-cylinder assembly has a principal structural group including a cylinder and another principal structural group including a piston rod which has a part-length axially displaceably arranged within the cylinder. The piston rod adopts a default strok...
12/10/2002
6401886Hydraulic oil cylinder structure with reverse force function
The invention herein relates to a hydraulic oil cylinder structure with reverse force function comprises of a piston rod with one threaded end and ring base on the other end; the piston rod is housed in order with a elastic cushion, a cover body, a cushio...
06/11/2002
5984058Cushioned braking system for a monorail trolley
A cushioned braking system for cushioning the impact of a moving vehicle for amusement for children is disclosed. The braking system comprises a double ended air cylinder having a first cylinder end and a second cylinder end. A first head member and a sec...
11/16/1999
5901947One piece bumper-bellows subassembly
The present invention is directed to a one piece, integrally molded, bumper-bellows subassembly for use in vehicles, for example, for use in suspension systems, rack and pinion steering systems and airsprings. The present subassembly prevents the elements...
05/11/1999
5337864Suspension system with improved resonance damping and a method for regulating the suspension system
A suspension system for motor vehicles is disposed between body (1) and wheel (2) and is provided with a damper (4) with integrated resonance dampers (40, 48) for improved insulation of transmission of road unevenness to the body. The resonance damper is ...
08/16/1994
5263695Suspension of vehicles using two stiffnesses, adapted respectively for obtaining a good level of comfort and a good level of behavior
A suspension for a vehicle wheel, comprising an elongated shock absorber (7) having an elongated body (6) and first and second abutments at opposite ends of the shock absorber. First and second coil compression springs (R20, R30) are aligned with each oth...
11/23/1993
5224689Shock absorbing device allowing reducing the vehicle weight
A shock absorbing device is disclosed, allowing reducing the vehicle weight at least by half. The device includes a tubular housing (TH) and within it a resilient shock dampening assembly (SDS) elastically axially movable is secured, through one or more i...
07/06/1993
5220706Air damper
An air damper utilizing only recirculating internal air for dampening in one direction of movement an openable object includes inner and outer cylinder members, primary and secondary shafts, first and second controllable orifice structures, primary and se...
06/22/1993
5215327Vehicle suspension
The stiffness of the suspension is very much a function of the load in hydro-pneumatic vehicle suspensions. With high loads the vehicle suspension is stiff and with a light load it is relatively soft. In addition, the vehicle suspension of the wheel on th...
06/01/1993
5211379Continuously self-compensating hydraulic positioner
A hydraulic positioner for seats includes a cylinder and piston structure with a piston rod secured to the piston and extending from the cylinder. A reservoir is provided in the cylinder by a gland jointly biased by a first spring located within the cylin...
05/18/1993
5096168Suspension system for vehicle
Among two damping devices arranged in series between wheel side members and body side members, while in one damping device spring constant of a spring member is set low and damping coefficient of a damper member is set high, in the other damping device sp...
03/17/1992
5049795Multivariable adaptive vibration canceller
The total periodically induced vibratory disturbance in a structure having unique structural characteristics is minimized. Actuators are operated in response to complex input signals to produce counteractive forces in the structure. Sensors responsive to ...
09/17/1991
5004206Vehicle seat mounting structure
A vehicle seat mounting structure includes a base, a seat mount, and a mechanism operably interposed between the base and mount for controlling relative motion thereof. The mechanism includes a platform, air springs to cushion roadway induced shock, and l...
04/02/1991
4950966Adaptive vibration canceller
A method and apparatus for cancelling vibrations caused by periodic pulsating forces acting on a rotating shaft which are synchronous with the shaft rotation. An adaptive algorithm is implemented which utilizes the sensed velocity or acceleration of the d...
08/21/1990
4936226Railway truck snubber
A hydraulic snubber device and more particularly, a snubber adapted to be interposed in the spring group between a bolster and a side frame member and having a single primary operating cartridge which is selectively usable with a plurality of differing co...
06/26/1990
4790522Electroviscous fluid control device
An apparatus for connection between relatively movable parts. The apparatus includes a variable volume chamber having a first portion for connection with one of the parts and a second portion for connection with another of the parts. The chamber has fluid...
12/13/1988
4781363Vibration isolator particularly of the antiresonance force type
A vibration isolator is formed with a spring mechanism and a fluid transmion mechanism interposed between a vibrating member and a support member. The fluid transmission mechanism includes a primary fluid chamber and a secondary fluid chamber, with the s...
11/01/1988
4773635Suspension for vehicle
A suspension includes a shock absorber and a bushing. A piston rod of the shock absorber has a bypass path for affording communicating between two liquid chambers partitioned by a piston inside a tube and two paths formed above the bypass path. A bushing ...
09/27/1988
4527674Shock absorber with a hydro-mechanical stop
A shock absorber (10) has a rebound stop assembly (22). The rebound stop assembly (22) rests upon a shoulder (30) fixed to a piston rod (16). The rebound stop assembly (22) includes an elastomeric ring (24) interposed between two collars (26 and 28) formi...
07/09/1985
4518058Engine torgue resisting strut and vibration damper
A front wheel drive vehicle having a frame and an engine set transversely across the width of the frame, and an engine torque strut between the engine and the frame for resisting the torque reactions during engine acceleration and during vehicle forward a...
05/21/1985
4474267Method of hydraulically damping railway car body roll
A method for controlling car body roll in high capacity railraod freight cars, in accordance with which a hydro-pneumatic roll control unit is incorporated in the car truck spring groups that support the respective truck bolsters. The roll control unit co...
10/02/1984
4465300Vehicle suspension for rough terrain
A suspension assembly for a truck type vehicle comprises a trunnion shaft rotatably mounted to the axle with a pair of spring supports mounted to the trunnion shaft, a pair of coil springs extending between the spring supports and the chassis, a pair of t...
08/14/1984
4406473Safety stabilizer for vehicle steering linkage
A self-centering shock dampening stabilizer is connected between a fixed point on a vehicle main frame member and a moving point in the steering linkage which interconnects the vehicle steerable wheels and steering gear. The stabilizer embodies an hydraul...
09/27/1983
4355583Side bearing for a railway car
A side bearing comprises integrally bonded pieces including an elastomeric cushion member secured to top and bottom plates and flexible leveling means secured to the bottom plate. The bearing is designed for connection between the bolster and truck side f...
10/26/1982
4351515Feedback control type shock absorbing suspension system
A feedback control type shock absorbing suspension system is inserted between a body including a vibration source and a foundation for suspension of the body. The absorbing system includes a suspending spring mechanism. A sensor mechanism detects velocity...
09/28/1982
4326733Hydro-pneumatic suspensions for automotive vehicles
A hydro-pneumatic suspension for automotive vehicles has two hydro-pneumatic shock absorbers per wheel. The shock absorbers are installed on a chassis of two C-shaped sections facing each other. A carrier fixed to the vehicle axle is pivotally coupled to ...
04/27/1982
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