Class 280/6.152 - Occupant ingress or egress

Subclass of Class 280 - Land vehicles
Definition: Subject matter wherein the accommodated cargo movement is
No. of patents: 22
Last issue date: 11/23/2010

Number	Title	Issue Date
7837203	Wheelchair converted vehicle having independent rear suspension and method of manufacturing A wheelchair conversion vehicle and a method of manufacturing a wheelchair conversion vehicle include replacing the OEM trailing arm with a trailing arm substitute and substantially reproducing the movement of the rear wheel OEM spindle along first or second arc pat...	11/23/2010
7802801	Mass transit vehicle A mass transit vehicle includes one or a combination of the following: floor portions that are angled for creating an incline of a floor of the buss; a door or entranceway that is angle relative to a fore-aft axis of the vehicle; and/or an entranceway that opens a r...	09/28/2010
7434521	Mason's adjustable chimney-platform arrangement An adjustable, articulable platform, changeable to and from a “U” shape to an “H” shape, is attachable to the distal end of an articulable support arm of a transport vehicle. The platform is arranged to adjustably surround an elevated chimney on at least thr...	10/14/2008
7416190	Air suspension system for a vehicle An air suspension system for a load bearing vehicle which includes a pair of air springs fluidly connected to a pair of auxiliary air reservoirs and to a main air reservoir. The system includes control valves which permit the air in the air springs to be exhausted t...	08/26/2008
7237779	Vehicle height adjusting apparatus A vehicle height adjusting apparatus includes a suspension spring supporting a sprung weight of a vehicle, a pivotal unsprung member carrying a road wheel and connected to a lower end of the suspension spring so as to pivot in response to deformation of the suspensi...	07/03/2007
6824144	Kneeling valve A kneeling valve assembly for transport vehicles to enable a quick and convenient kneeling operation to permit safe ingress and egress from the vehicle. The kneeling valve assembly employs a suspension member positioned between the vehicle body and the axle of the t...	11/30/2004
6752402	Level control system for a motor vehicle A level control system for a motor vehicle having a vehicle body includes a plurality of air springs which can be filled or discharged with pressurized air to control the level of the vehicle body. A first control apparatus controls the functions of filling and disc...	06/22/2004
6234493	Level control system A level control system controls the distance between the vehicle axles and the vehicle frame of a vehicle. The suspension is a full or partial air suspension, wherein the vehicle frame over the vehicle axles is supported via air suspension bellows. A vehi...	05/22/2001
6098995	Vehicle suspension for providing kneeling function to a vehicle having a lowered floor An improved vehicle suspension system for providing kneeling function to a vehicle having a modified lower floor. The suspension system includes a pair of springs each of which is respectively mounted at one of the rear wheels of the vehicle. The system a...	08/08/2000
5863049	Retractable and extendable wheel assembly A retractable and extendable wheel assembly for mounting to a vehicle at wheel positions of the vehicle. The assembly comprises an axle shaft on which a wheel having a central axis can rotate, and a strut having a first end pivotally mounted at a first st...	01/26/1999
5700026	Vehicle body lowering system A vehicle body lowering system for installation in a motor vehicle having a wheeled carriage, a cargo/passenger compartment body, a door in the passenger compartment body for cargo loading and unloading or passenger embarking and debarking, and a spring s...	12/23/1997
5452919	Suspension system for a vehicle A vehicle air suspension can be controlled between a Standard setting of ride height and a lower, Kneel, setting. Movement to or from the Kneel setting is frozen if a door is opened or if the footbrake is applied. Alteration to the Kneel setting is preven...	09/26/1995
5344189	Vehicle height adjusting device A vehicle height adjusting device capable of kneeling without exhausting air in air springs into the atmosphere. It is possible to perform the kneeling in addition to a forward inclination without using supporting legs, a specific pump, and a moving devic...	09/06/1994
5193849	Kneeling omnibus A level control system for an omnibus, especially a low-loading omnibus, having an omnibus body supported on axles and wheel suspension, is comprised of a compressed air system that is self-contained for each axle. The following vertical adjustments are p...	03/16/1993
5135065	Vehicular height controlling arrangement in automotive vehicle A vehicular height controlling arrangement changing a length of a suspension cylinder by supplying or draining the hydraulic oil through a damping force selector valve. The damping force selector valve changes a damping force of a suspension cylinder by c...	08/04/1992
5046754	Vehicle height control device adapted also for operation after turn off of ignition switch A vehicle height control device is adapted to operate even after turning off of the engine ignition switch within a first period only for lowering vehicle height when it exceeds a limit value which is higher than a limit value normally employed for vehicl...	09/10/1991
4886290	Device making it possible to lower the rear of a road vehicle to bring it to ground level The device includes, at each end of rear axle, an approximately vertical beam, whose lower end is fastened to the axle, and in which is mounted, with insertion of a bearing; a shaft passing through the beam, oriented parallel to the axle, to whose outside...	12/12/1989
4341398	System for controlling the kneeling operation of air suspension equipped transit vehicles A system for controlling the kneeling operation of air suspension equipped transit vehicles includes air suspension members (20, 22, 24, 26, 28, 30) mounted at the wheels of the transit vehicle (10) and a fluid reservoir (32). A fluid circuit is included ...	07/27/1982
4248455	Heavy-duty suspension system The invention relates to an air suspension system uniquely disposed and mounted between the vehicle underbody and the wheel-supporting sub-frame to facilitate minimum clearance between the vehicle floor and the ground, to enhance vehicle roll stability, a...	02/03/1981
4238128	Combination load-leveling and kneeling air suspension system A combination load-leveling and kneeling air suspension system for a vehicle having a sprung member and an unsprung member. The system has a pair of laterally spaced air springs, a pressurized air reservoir with a first tubing line connecting the pressuri...	12/09/1980
4213625	Pneumatically suspended bus A bus arranged in accordance with the present invention permits the boarding level to be minimized at bus stops without unduly reducing the ground clearance to be maintained during operation. When supporting struts are being extended at a bus stop, the bu...	07/22/1980
4212484	Hydropneumatic suspension system A hydropneumatic suspension system selectively lowers the level of a vehicle body above the ground to afford entry/exit and loading/unloading ease. A normally open solenoid valve is operative to cut supply of fluid under pressure to self-levelling suspens...	07/15/1980

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Class 280/6.152 - Occupant ingress or egress