Class 280/124.174 - Plural cooperating leaf springs (e.g., full elliptical spring, helper springs)

Subclass of Class 280 - Land vehicles
Definition: Subject matter including multiple leaf springs associated
No. of patents: 32
Last issue date: 02/23/2010

Number	Title	Issue Date
7665753	Insert pin for leaf spring suspension A leaf spring suspension includes a plurality of leaf springs fixedly secured together by a bolt in the form of a stack. A first leaf spring of the plurality of leaf springs has ends configured to be coupled to a vehicle frame. A pin extends through each leaf spring...	02/23/2010
7360776	Method 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
7246808	Wheel suspension for vehicles A wheel suspension for vehicles that includes leaf spring assemblies mounted in pairs on each side of the vehicle in the longitudinal direction of the vehicle and also at least one damper device mounted on the vehicle in conjunction with at least one wheel axle. The...	07/24/2007
7213825	Leaf spring retaining bracket A one-piece leaf spring retaining bracket may be welded to a longitudinal member of a vehicle frame. The leaf spring retaining bracket is symmetrical along two planes, and the same bracket may be used on either side of the vehicle frame. The bracket has an upper sec...	05/08/2007
7144031	Suspension isolator equalizer An isolator for use in a suspension system includes a front shaft and a rear shaft. A front spring arm and a front transitional arm are mounted to the front shaft. A rear spring arm and a rear transitional arm are mounted to the rear shaft. A resilient member is mou...	12/05/2006
6910743	Stable wheel assembly A stable wheel assembly has wheels, a connector, a wheel stand with a bracket and a resilient body. Each wheel has a center. The connector has two spindles and two protrusions. Each protrusion has a free end and an upright step integrally formed with the free end of...	06/28/2005
6863290	Suspension A suspension includes: wheel supporting members for supporting wheels, a leaf spring having both end portions each arranged on an upper side of the respective wheel supporting member; a pivot supporting the leaf spring, and receiving pieces interposed between the wh...	03/08/2005
6832773	Suspension A suspension includes wheel supporting members for supporting wheels; a first leaf spring having both end portions each disposed on an upper side of one of the wheel supporting members; a second leaf spring extending along the first leaf spring; a pivot for supporti...	12/21/2004
6425595	Automotive suspension system incorporating splay reduction device Automotive suspension system having a leaf spring assembly. A splay reduction device is employed for maintaining alignment of leaf members....	07/30/2002
6273441	Vehicle suspension stabilizing device An anti-roll suspension stabilizer for a vehicle having a leaf spring suspension system. The device features an elongated stabilizing spring communicating roll resistance to the attached axle of the vehicle at a center section and concurrent force at each...	08/14/2001
6206407	Vehicle suspension system A vehicle suspension system is provided for coupling elongated frame rails to first and second axles, the axles extending in a direction transverse to the frame rails. Each axle has opposed outer end portions projecting outwardly beyond the frame rails. A...	03/27/2001
5992831	Stabilizer for leaf spring suspension A leaf spring suspension device for stabilizing a multi-leaf type vehicle spring connected to the axle of the vehicle including a unitary length of metallic spring material adapted to be connected directly to the multiple-leaf type vehicle spring at oppos...	11/30/1999
5320192	Rear wheel steering device A rear wheel steering device is provided in a vehicle with a simple structure in which rear wheels are supported at both end portions of a rear axle housing along a width direction of a chassis in order to drive the vehicle more stably at high speeds. The...	06/14/1994
5137300	Vehicle suspension with auxiliary leaf spring and squat control system Selectively engagable auxiliary leaf springs (38) for vertically supporting a vehicle chassis (32) on an axle assembly (22) in parallel with main suspension springs (34). Forward and rear ends (38b, 38a) of the auxiliary leaf springs are pivotally attache...	08/11/1992
5129671	Vehicle suspension with auxiliary leaf spring with load control system Selectively engagable auxiliary leaf springs (38) for vertically supporting a vehicle chassis (32) on an axle assembly (22) in parallel with main suspension springs (34). Forward and rear ends (38b, 38a) of the auxiliary leaf springs are pivotally attache...	07/14/1992
5123672	Vehicle suspension with auxiliary leaf spring with roll control system Selectively engagable auxiliary leaf springs (38) for vertically supporting a vehicle chassis (32) on an axle assembly (22) in parallel with main suspension springs (34). Forward and rear ends (38b,38a) of the auxiliary leaf springs are pivotally attached...	06/23/1992
5098121	Vehicle suspension with auiliary leaf springs Selectively engagable auxiliary leaf springs (38) for vertically supporting a vehicle chassis (32) on an axle assembly (22 or 102) in parallel with main suspension springs (34 or 114). Forward and rear ends (38b,38a) of the auxiliary leaf springs are pivo...	03/24/1992
5080390	Vehicle with plastic suspension Four wheeled vehicle supporting a ground probing radar antenna 52 has an aluminium alloy square plate 10 and four wheel mountings 14 supported by four pairs of equal-length arms 18,20. The arms as seen in plan are arranged in a square. One arm 18 in any p...	01/14/1992
5039071	Running gear of a railway vehicle Running gear (1) of a railway vehicle, which is suspended on the undercarriage (2) of the railway vehicel by blade support springs (3) and suspension attachment (8), with the additional arrangement of an additional blade spring as absorption spring (12); ...	08/13/1991
5029893	Vehicle suspension with auxiliary leaf springs Selectively engagable auxiliary leaf springs (38) for vertically supporting a vehicle chassis (32) on an axle assembly (22 or 102) in parallel with main suspension springs (34 or 114). Forward and rear ends (38b,38a) of the auxiliary leaf springs are pivo...	07/09/1991
5024463	Manually power mechanical actuator for parallel auxiliary spring Selectively engagable auxiliary leaf springs (38 or 142) for vertically supporting a vehicle chassis (32) on an axle assembly (22 or 102) in parallel with main suspension springs (34 or 114). In three of the disclosed embodiments, both ends (38b,38a) of t...	06/18/1991
4982972	Hydraulic pump and actuator for parallel auxiliary leaf spring Selectively engagable auxiliary leaf springs (38 or 138) for vertically supporting a vehicle chassis (32) on an axle assembly (22 or 102) in parallel with main suspension springs (34 or 114). In three of the disclosed embodiments, both ends (38b,38a) of t...	01/08/1991
4927171	Vehicle suspension system A vehicle suspension unit has two arms joined together at one end by a cr-member. Each arm is formed from two fiber reinforced plastic springs separated by the cross-member at the end, by a spacing member of resilient material, and secured together at an...	05/22/1990
4886292	Elastic suspension of a wheeled vehicle An elastic suspension of a vehicle having a frame with at least one axle includes a lamination (3) of leaf springs interposed between the frame (1) and axle (2) and mechanically connected thereto. A plate bracelike spring (4) extends lengthwise of the lam...	12/12/1989
4687224	Dual offset cantilevered spring suspension A vehicle suspension system is provided with dual offset cantilevered leaf springs. A forward and a rearward extending leaf spring are both mounted to a vehicle axle in a longitudinally overlapping transversely offset manner. The forward and rearward spri...	08/18/1987
4362318	Suspension system including auxiliary spring for lightly loaded conditions A vehicle suspension system including a mainspring connected to at least one axle of the vehicle, a hanger attached to the vehicle frame for retaining the mainspring while permitting vertical travel thereof within a predetermined range, and an auxiliary s...	12/07/1982
4313620	Device for limiting lateral canting of road vehicles The normally generally straight, slightly arcuate main leaf of an auxiliary or "helper" leaf spring bundle is modified to include loops at both ends thereof, enveloping the respective helper leaf bracket of the frame, to provide additional anti-sway resis...	02/02/1982
4227716	Arrangement for attaching spring assemblies to vehicle axle housings An arrangement for attaching a spring assembly to an axle housing 1 in vehicles. At least two housing brackets 10, 11 are rigidly mounted on the front and the rear of an axle housing 1 for supporting a spring retaining seating 30 which is contacting the h...	10/14/1980
4226441	Auxiliary vehicle spring for lightly loaded conditions A vehicle suspension system in which an auxiliary spring having a lower spring rate than the mainspring provides a resilient ride under empty or lightly loaded conditions by urging the mainspring toward the lower limit of its vertical travel. The auxiliar...	10/07/1980
4175772	Vehicle suspension system having auxiliary spring for lightly loaded conditions A vehicle suspension system in which an auxiliary spring having a lower spring rate than the mainspring provides a resilient ride under empty or lightly loaded conditions by urging the mainspring toward the lower limit of its vertical travel. The auxiliar...	11/27/1979
4093272	Unitary lift and spring vehicular suspension An axle suspension with a unitary bracket attachable to a vehicle frame, the bracket having three sets of depending rails, between the first two of which a torque beam is pivoted with members at its other end for connection to an axle, and between the sec...	06/06/1978
4004826	Leaf spring suspension system A leaf spring suspension including a support bracket for supporting the front end of the main leaf of a leaf spring assembly, and laterally deflectable beam means extending forwardly from the vehicular side rail at a predetermined angle of, say, 20 degree...	01/25/1977

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Class 280/124.174 - Plural cooperating leaf springs (e.g., full elliptical spring, helper springs)