US3189306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fifth wheel stand elevating mechanism
Assignee: Pullman Standard Inc
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Filing: 1962-07-02
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Granted: 1965-06-15
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Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Willis H Knippel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:40
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/001; B61D45/004; B61D45/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A TRAILER SUPPORTING STANCHION MOUNTED ON A RAILWAY CAR FOR MOVEMENT BETWEEN A RETRACTED POSITION AND AN ELEVATED TRAILER SUPPORTING POSITION AND INCLUDING A SUPPORT STRUCTURE CARRYING A SUPPORT PLATE ASSEMBLY FOR SUPPORTING THE TRAILER AND HITCHING THE LATTER TO A RAILWAY CAR THE IMPROVEMENT COMPRISING, A STANCHION LIFTING DEVICE COMPRISING A SCREW DRIVE MEANS CONNECTED AT ONE END TO SAID SUPPORT STRUCTURE FOR RAISING SAID LOWERING SAID STANCHION OF SAID RETRACTED AND ELEVATED POSITIONS, A POWER INPUT MEANS CONNECTED TO SAID OTHER END OF SAID SCREW DRIVE MEANS, AND MEANS MOUNTING SAID SCREW DRIVE MEANS ON SAID CAR, AND RESILIENT MEANS DISPOSED BETWEEN SAID SCREW DRIVE MEANS AND SAID MOUNTING MEANS TO YIELDABLY SUPPORT SAID SCREW DRIVE MEANS AND PROVIDE A FORCE OPPOSING THE FORCES EXERTED ON SAID SCREW DRIVE MEANS BY SAID STANCHION.
Claim 2
Dependent Claim
136 words
IN A TRAILER SUPPORTING STANCHION MOUNTED ON A RAILWAY CAR FOR MOVEMENT BETWEEN A RETRACTED POSITION AND AN ELEVATED TRAILER SUPPORTING POSITION AND INCLUDING A SUPPORT STRUCTURE CARRYING A SUPPORT PLATE ASSEMBLY FOR SUPPORTING THE TRAILER AND HITCHING THE LATTER TO A RAILWAY CAR THE IMPROVEMENT COMPRISING, A STANCHION LIFTING DEVICE COMPRISING A SCREW DRIVE MEANS CONNECTED AT ONE END TO SAID SUPPORT STRUCTURE FOR RAISING SAID LOWERING SAID STANCHION OF SAID RETRACTED AND ELEVATED POSITIONS, A POWER INPUT MEANS CONNECTED TO SAID OTHER END OF SAID SCREW DRIVE MEANS, AND MEANS MOUNTING SAID SCREW DRIVE MEANS ON SAID CAR, AND RESILIENT MEANS DISPOSED BETWEEN SAID SCREW DRIVE MEANS AND SAID MOUNTING MEANS TO YIELDABLY SUPPORT SAID SCREW DRIVE MEANS AND PROVIDE A FORCE OPPOSING THE FORCES EXERTED ON SAID SCREW DRIVE MEANS BY SAID STANCHION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |