US3262227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cover assembly for access hatch
Assignee: United States Steel Corp
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Filing: 1964-04-17
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Granted: 1966-07-26
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Expires: 1984-04-17
Abstract
No abstract record available.
Inventors
- 👤 Horace T Pentecost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:12
CPC Classifications
A; A62; A62B; A62B13/00; B; B63; B63B; B63B19/00; B63B19/12; B63B19/14; E; E05; E05B; E05B65/00; E05B65/006; E06; E06B; E06B5/00; E06B5/01; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1099; Y10T292/20; Y10T292/202
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
IN A HATCH DEFINED BY A PERIPHERAL FRAME, A HATCH CLOSURE COMPRISING A PLATE HAVING A BOTTOM SURFACE ADAPTED TO COVER SAID HATCH, A PIVOT TUBE HAVING ONE END RIGIDLY AFFIXED TO THE BOTTOM SURFACE OF SAID PLATE ADJACENT AN EDGE THEREOF AND THE OTHER END EXTENDING INTO SAID HATCH, A BEARING SLEEVE ATTACHED TO ONE SIDE OF THE INTERIOR OF SAID HATCH FRAME AND SURROUNDING SAID TUBE, SAID TUBE BEING ROTATABLE IN SAID SLEEVE, A WALL HAVING A CENTER HOLE THERETHROUGH ON THE END OF SAID SLEEVE REMOTE FROM SAID PLATE, A LINK COAXIAL WITH SAID TUBE, RESPECTIVE ENDS OF SAID LINK PROJECTING SLIDABLY THROUGH SAID PLATE AND THE HOLE IN SAID WALL, COMPRESSION SPRING MEANS IN SAID TUBE ACTING BETWEEN THE PLATE AND THE SAID SLEEVE WALL NORMALLY BIASING SAID PLATE AWAY FROM SAID HATCH, AND CAM MEANS CARRIED BY EACH OF THE PROJECTING ENDS OF SAID LINK, SAID CAM MEANS BEING ADAPTED TO COOPERATE WITH SAID PLATE AND SAID WALL, RESPECTIVELY, TO LOCK SAID LINK IN POSITION EXTENDED IN ONE DIRECTION AND LOCK SAID PLATE IN POSITION COVERING SAID HATCH.
Claim 2
Dependent Claim
183 words
IN A HATCH DEFINED BY A PERIPHERAL FRAME, A HATCH CLOSURE COMPRISING A PLATE HAVING A BOTTOM SURFACE ADAPTED TO COVER SAID HATCH, A PIVOT TUBE HAVING ONE END RIGIDLY AFFIXED TO THE BOTTOM SURFACE OF SAID PLATE ADJACENT AN EDGE THEREOF AND THE OTHER END EXTENDING INTO SAID HATCH, A BEARING SLEEVE ATTACHED TO ONE SIDE OF THE INTERIOR OF SAID HATCH FRAME AND SURROUNDING SAID TUBE, SAID TUBE BEING ROTATABLE IN SAID SLEEVE, A WALL HAVING A CENTER HOLE THERETHROUGH ON THE END OF SAID SLEEVE REMOTE FROM SAID PLATE, A LINK COAXIAL WITH SAID TUBE, RESPECTIVE ENDS OF SAID LINK PROJECTING SLIDABLY THROUGH SAID PLATE AND THE HOLE IN SAID WALL, COMPRESSION SPRING MEANS IN SAID TUBE ACTING BETWEEN THE PLATE AND THE SAID SLEEVE WALL NORMALLY BIASING SAID PLATE AWAY FROM SAID HATCH, AND CAM MEANS CARRIED BY EACH OF THE PROJECTING ENDS OF SAID LINK, SAID CAM MEANS BEING ADAPTED TO COOPERATE WITH SAID PLATE AND SAID WALL, RESPECTIVELY, TO LOCK SAID LINK IN POSITION EXTENDED IN ONE DIRECTION AND LOCK SAID PLATE IN POSITION COVERING SAID HATCH.
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |