Patent US3478835A successfully refreshed from Google Patents.
US3478835A
Expired / Lapsed
US
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Control system for fluid-cushion devices
Assignee: Bertin Technologies SAS
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Filing: 1965-10-23
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Granted: 1969-11-18
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Jean H Bertin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:32
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/16; B60V1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A GROUND EFFECT MACHINE MOVABLE ALONG A BEARING SURFACE IN NARROW SPACED RELATION THEREWITH, OF THE KIND COMPRISING A PLATFORM AND SUPPORT FRAME AND AT LEAST ONE PLENUM CHAMBER CARRIED BY SAID SUPPORT FRAME AND COOPERATING WITH SAID SURFACE TO FORM THEREAGAINST A FLUID CUSHION SUSTAINING SAID MACHINE, SAID PLENUM CHAMBER BEING LATERALLY BOUNDED BY A SIDE WALL EXPOSED INWARDLY TO SAID CUSHION AND OUTWARDLY TO SURROUNDING MEDIUM AND HAVING A LOWER FREE END DESIGNED, IN OPERATION, TO MOVE ABOVE BUT ADJACENT TO SAID SURFACE AND AN UPPER PORTION ATTACHED TO SAID SUPPORT FRAME AND SUBSTANTIALLY FLUIDTIGHTLY CONNECTED TO SAID PLATFORM, WHEREIN THE IMPROVEMENT COMPRISES MEANS MOUNTING SAID SUPPORT FRAME AND ATTACHED PORTION OF SAID PLENUM CHAMBER SIDE WALL FOR BODILY TILTING THE LATTER WITH RESPECT TO SAID PLATFORM, AND CONTROLLABLE MEANS OPERABLE FROM SAID PLATFORM FOR SELECTIVELY TILTING SAID PLENUM CHAMBER SIDE WALL BODILY,
Claim 2
Dependent Claim
145 words
A GROUND EFFECT MACHINE MOVABLE ALONG A BEARING SURFACE IN NARROW SPACED RELATION THEREWITH, OF THE KIND COMPRISING A PLATFORM AND SUPPORT FRAME AND AT LEAST ONE PLENUM CHAMBER CARRIED BY SAID SUPPORT FRAME AND COOPERATING WITH SAID SURFACE TO FORM THEREAGAINST A FLUID CUSHION SUSTAINING SAID MACHINE, SAID PLENUM CHAMBER BEING LATERALLY BOUNDED BY A SIDE WALL EXPOSED INWARDLY TO SAID CUSHION AND OUTWARDLY TO SURROUNDING MEDIUM AND HAVING A LOWER FREE END DESIGNED, IN OPERATION, TO MOVE ABOVE BUT ADJACENT TO SAID SURFACE AND AN UPPER PORTION ATTACHED TO SAID SUPPORT FRAME AND SUBSTANTIALLY FLUIDTIGHTLY CONNECTED TO SAID PLATFORM, WHEREIN THE IMPROVEMENT COMPRISES MEANS MOUNTING SAID SUPPORT FRAME AND ATTACHED PORTION OF SAID PLENUM CHAMBER SIDE WALL FOR BODILY TILTING THE LATTER WITH RESPECT TO SAID PLATFORM, AND CONTROLLABLE MEANS OPERABLE FROM SAID PLATFORM FOR SELECTIVELY TILTING SAID PLENUM CHAMBER SIDE WALL BODILY,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |