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US3689054A Expired / Lapsed US ⏱️ 0.0 years remaining

Combined vehicle chassis and air suspension system

Assignee: GOUIRAND RENE
•
Filing: 1971-01-28
•
Granted: 1972-09-05
•
Expires: 1991-01-28
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Abstract

Abstract A combined vehicle chassis and air suspension wherein elongated air bags having a substantially circular cross-section are physically located within and supported by inverted, U-shaped chassis members. Under no load conditions, the air bags contact the chassis members on only a portion of the circumference and as the load increases, the contact surface between the air bag and the chassis members increases, thereby increasing spring stiffness. The side portions of the inverted U-shaped chassis members are spaced from the sides of the air bags under no load conditions. Under heavy load and when the car turns around a curve, the side portions of the U-shaped members prevent sidesway of the vehicle. Air-bumpers are provided which are coupled to the air system of the suspension system. The air in the airbumpers acts as an additional reservoir for the air bags of the suspension system to effectively soften the ride of the vehicle and additionally, absorb vehicle impacts.

Inventors

  • 👤 Rene Gouirand

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 18:33
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/18; B60R19/20; B60G; B60G11/00; B60G11/26; B60G11/27; B60G2202/00; B60G2202/10; B60G2202/15; B60G2202/152; B60G2206/00; B60G2206/01; B60G2206/60; B60G2800/00; B60G2800/01; B60G2800/014; B60G2800/22; B60G2800/222

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 99 words
A safety air-bumper for use in a vehicle having an air suspension system which includes at least one air spring comprising: a first bumper plate member coupled to the end of a vehicle chassis; a second bumper plate member; an elongated bumper air bag interposed between said first and second bumper plate members, said bag comprising resilient material substantially entirely surrounding the air contained therein; means for coupling said bumper air bag in communication with the air spring of said air suspension system; and, said elongated bumper air bag being secured to said first and second bumper plate members.
Claim 2
Dependent Claim 99 words
A safety air-bumper for use in a vehicle having an air suspension system which includes at least one air spring comprising: a first bumper plate member coupled to the end of a vehicle chassis; a second bumper plate member; an elongated bumper air bag interposed between said first and second bumper plate members, said bag comprising resilient material substantially entirely surrounding the air contained therein; means for coupling said bumper air bag in communication with the air spring of said air suspension system; and, said elongated bumper air bag being secured to said first and second bumper plate members.
Claim 3
Dependent Claim 23 words
A safety air bumper according to claim 1 wherein said second bumper plate member is pivotally secured to said first bumper plate member.
Claim 4
Dependent Claim 33 words
A safety air-bumper according to claim 1, wherein said air bag is secured to said first and second bumper plate members by spaced bolts molded in the resilient material of said air bag.
Claim 5
Dependent Claim 24 words
A safety air-bumper according to claim 1, wherein said air bag is secured to said first and second bumPer plate members by adhesive bonding.
Claim 6
Dependent Claim 33 words
A safety air-bumper according to claim 1, wherein said air bag is secured to said first and second bumper plate members by spaced bolts molded in said air bag and by adhesive bonding.
Claim 7
Dependent Claim 33 words
A safety air-bumper according to claim 1 and slow return valve means incorporated in said means for coupling said bumper air bag in communication with the air spring of said air suspension system.
Claim 8
Dependent Claim 22 words
A safety air-bumper according to claim 6, wherein said second bumper plate member is pivotally secured to said first bumper plate member.
Claim 9
Dependent Claim 29 words
A safety air-bumper according to claim 7, wherein said air bag is secured to said first and second bumper plate members by spaced bolts molded in said air bag.
Claim 10
Dependent Claim 25 words
A safety air-bumper according to claim 7, wherein said air bag is secured to said first and second bumper plate members by bonding with adhesive.

References Cited (Backward Citations)

US1096609A Cited
US2914339A Cited
US2999697A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-09-05 1976-03-06 1976-09-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-09-05 1980-03-06 1980-09-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-09-05 1984-03-06 1984-09-05 $7700.00 Window Closed / Lapsed

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