Patent US3175518A successfully refreshed from Google Patents.
US3175518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trough type hatch operating arrangement
Assignee: Pullman Standard Inc
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Filing: 1963-06-04
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Granted: 1965-03-30
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Expires: 1983-06-04
Abstract
No abstract record available.
Inventors
- 👤 William A Warheit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:35
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/12; B61D17/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN A COVERED HOPPER CAR WHEREIN A PLURALITY OF HOPPERS WHICH ARE ALIGNED LONGITUDINALLY OF THE CAR ARE EXPOSED ALONG TOP PORTIONS THEREOF FOR SIMULTANEOUS LOADING THROUGH A LONGITUDINALLY CONTINUOUS HATCH OPENING IN COMMUNICATION WITH EACH OF SAID HOPPERS, AND A CONTINUOUS HATCH OPENING COVER MEANS EXTENDS OVER SAID HOPPERS IN VERTICALLY DOWNWARDLY SEALING ENGAGING RELATION WITH SAID HOPPERS ABOUT SAID HATCH OPENING, THE PROVISION OF OPERATING MEANS FOR SAID COVER MEANS, SAID OPERATING MEANS INCLUDING LIFTING MEANS MOUNTED IN SAID HATCH OPENING, PIVOT SUPPORT MEANS ENGAGED WITH SAID LIFTING MEANS AND ENGAGED WITH SAID COVER MEANS, AND MEANS EXTENDING EXTERNALLY OF SAID HATCH OPENING AND COVER MEANS AND ENGAGING SAID LIFTING MEANS TO OPERATE THE SAME TO RAISE SAID SUPPORT MEANS AND COVER MEANS FROM SAID HATCH OPENING FOR MOVEMENT OF SAID COVER MEANS ON SAID SUPPORT MEANS OUT OF COVERING RELATION WITH SAID HATCH OPENING.
Claim 2
Dependent Claim
147 words
IN A COVERED HOPPER CAR WHEREIN A PLURALITY OF HOPPERS WHICH ARE ALIGNED LONGITUDINALLY OF THE CAR ARE EXPOSED ALONG TOP PORTIONS THEREOF FOR SIMULTANEOUS LOADING THROUGH A LONGITUDINALLY CONTINUOUS HATCH OPENING IN COMMUNICATION WITH EACH OF SAID HOPPERS, AND A CONTINUOUS HATCH OPENING COVER MEANS EXTENDS OVER SAID HOPPERS IN VERTICALLY DOWNWARDLY SEALING ENGAGING RELATION WITH SAID HOPPERS ABOUT SAID HATCH OPENING, THE PROVISION OF OPERATING MEANS FOR SAID COVER MEANS, SAID OPERATING MEANS INCLUDING LIFTING MEANS MOUNTED IN SAID HATCH OPENING, PIVOT SUPPORT MEANS ENGAGED WITH SAID LIFTING MEANS AND ENGAGED WITH SAID COVER MEANS, AND MEANS EXTENDING EXTERNALLY OF SAID HATCH OPENING AND COVER MEANS AND ENGAGING SAID LIFTING MEANS TO OPERATE THE SAME TO RAISE SAID SUPPORT MEANS AND COVER MEANS FROM SAID HATCH OPENING FOR MOVEMENT OF SAID COVER MEANS ON SAID SUPPORT MEANS OUT OF COVERING RELATION WITH SAID HATCH OPENING.
References Cited (Backward Citations)
US2899912A
Cited
US3019743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |