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US3261418A Expired / Lapsed US ⏱️ 0.0 years remaining

Air cushion track arrangement for vehicle

Assignee: Bertin Technologies SAS
•
Filing: 1964-03-10
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Granted: 1966-07-19
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Expires: 1984-03-10
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Abstract

No abstract record available.

Inventors

  • 👤 Bertin Jean Henri

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 07:01
CPC Classifications
B; B60; B60V; B60V3/00; B60V3/02; B60V1/00; B60V1/11; B60V1/115; B60V3/04; B62; B62D; B62D55/00; B62D55/08; B62D55/104; B62D55/112; B62D55/1125

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 141 words
IN A COMBINED AIR-CUSHION AND ENDLESS TRACK VEHICLE, A FLUID-CUSHION BORNE BODY, RADIALLY DEFORMABLE TERMINAL ROLLERS OF ELASTIC MATERIAL CARRIED BY SAID BODY AND HAVING A SELECTED DEFORMATION CAPACITY, AT LEAST ONE ENDLESS, FLEXIBLE, GROUND-ENGAGING TRACK HAVING AN INNER SIDE ENGAGED BY AND PASSING OVER SAID TERMINAL ROLLERS AND AN OUTER SIDE FOR BEARING AGAIST THE GROUND ALONG A LOWER RUN OF SAID TRACK, A SOURCE OF PRESSURE FLUID ON SAID BODY, MEANS FED WITH PRESSURE FLUID FROM SAID SOURCE FOR FORMING A VERTICALLY DEFORMABLE FLUID CUSHION SUSTAINING SAID BODY AND ACTIVE ON THE INNER SIDE OF SAID LOWER RUN OF THE ENDLESS TRACK AND MEANS PROVIDING A CONTINUOUS FLUID CONNECTION BETWEEN SAID CUSHION FORMING MEANS AND SAID TERMINAL ROLLERS, SO THAT THE DEFORMATION CAPACITY OF SAID FLUID CUSHION IS SUBSTANTIALLY EQUAL TO THE SELECTED DEFORMATION CAPACITY OF SAID TERMINAL ROLLERS.
Claim 2
Dependent Claim 141 words
IN A COMBINED AIR-CUSHION AND ENDLESS TRACK VEHICLE, A FLUID-CUSHION BORNE BODY, RADIALLY DEFORMABLE TERMINAL ROLLERS OF ELASTIC MATERIAL CARRIED BY SAID BODY AND HAVING A SELECTED DEFORMATION CAPACITY, AT LEAST ONE ENDLESS, FLEXIBLE, GROUND-ENGAGING TRACK HAVING AN INNER SIDE ENGAGED BY AND PASSING OVER SAID TERMINAL ROLLERS AND AN OUTER SIDE FOR BEARING AGAIST THE GROUND ALONG A LOWER RUN OF SAID TRACK, A SOURCE OF PRESSURE FLUID ON SAID BODY, MEANS FED WITH PRESSURE FLUID FROM SAID SOURCE FOR FORMING A VERTICALLY DEFORMABLE FLUID CUSHION SUSTAINING SAID BODY AND ACTIVE ON THE INNER SIDE OF SAID LOWER RUN OF THE ENDLESS TRACK AND MEANS PROVIDING A CONTINUOUS FLUID CONNECTION BETWEEN SAID CUSHION FORMING MEANS AND SAID TERMINAL ROLLERS, SO THAT THE DEFORMATION CAPACITY OF SAID FLUID CUSHION IS SUBSTANTIALLY EQUAL TO THE SELECTED DEFORMATION CAPACITY OF SAID TERMINAL ROLLERS.

References Cited (Backward Citations)

US2698667A Cited
US3117643A Cited
US3095938A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-07-18 1970-01-17 1970-07-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-07-18 1974-01-17 1974-07-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-07-18 1978-01-17 1978-07-19 $7700.00 Window Closed / Lapsed

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