US3191546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Movable bulkhead
Assignee: Pullman Standard Inc
•
Filing: 1961-03-13
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Granted: 1965-06-29
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Expires: 1981-03-13
Abstract
No abstract record available.
Inventors
- 👤 Franklin P Adler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:13
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/006
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
155 words
A MOVABLE BULKHEAD CONSTRUCTION FOR A CARGO COMPARTMENT HAVING A PAIR OF SPACED TRACKS EXTENDING ALONG THE UPPER PORTION OF THE SIDE WALLS THEREOF COMPRISING A BULKHEAD, A BULKHEAD SUPPORTING TROLLEY SPANNING THE DISTANCE BETWEEN AND RIDING ON SAID TRACKS, SAID TROLLEY COMPRISING TWO U-SHAPED YOKES, ONE AT EACH END, AND EACH YOKE PROVIDING A SUPPORTING PLATFORM, A PAIR OF ROLLERS SUPPORTED BY EACH YOKE, AND MEANS CONNECTING SAID YOKES TO EACH OTHER, SAID BULKHEAD HAVING LATERALLY EXTENDING HANGERS LOCATED AT THE UPPER CORNER PORTIONS THEREOF AND RECEIVED IN SAID YOKES AND OVERLYING SAID PLATFORMS, A COIL SPRING DISPOSED BETWEEN EACH SUPPORTING PLATFORM AND ONE OF SAID HANGERS AND ORIENTED FOR NORMALLY URGING SAID BULKHEAD TO A RAISED POSITION AND RESILIENTLY SUPPORTING SAID BULKHEAD FROM SAID TROLLEY, OPERATING MEANS ON SAID BULKHEAD AND REACTING AGAINST THE STRUCTURE OF SAID CARGO COMPARTMENT FOR URGING SAID BULKHEAD DOWNWARDLY AGAINST THE FORCE OF SAID COIL SPRING SO THAT
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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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |