US3203362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable bulkhead
Assignee: Lukens General Industries Inc
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Filing: 1962-01-12
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Granted: 1965-08-31
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Expires: 1982-01-12
Abstract
No abstract record available.
Inventors
- 👤 Richard L Lich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:21
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
AN ADJUSTABLE BULKHEAD DEVICE FOR USE ON A HORIZONTAL LOAD SUPPORTING SURFACE, COMPRISING UPSTANDING STRUCTURE FIXED ON THE SURFACE, A VERTICALLY DISPOSED MOVABLE BULKHEAD STRUCTURE NORMALLY POSITIONED ADJACENT SAID FIXED STRUCTURE, MEANS FOR MOVING SAID MOVABLE STRUCTURE IN A DIRECTION PERPENDICULAR TO ITS GENERAL PLANE TO SELECTED POSITIONS SPACED FROM SAID FIXED STRUCTURE AND FOR MAINTAINING SAID MOVABLE STRUCTURE SUBSTANTIALLY UPRIGHT AT ALL TIMES, AND MEANS INDEPENDENT OF SAID FIRST NAMED MEANS PROVIDING HORIZONTAL SUPPORTING FOR SAID MOVABLE STRUCTURE FROM SAID FIXED STRUCTURE, SAID FIRST NAMED MEANS COMPRISING A PAIR OF STRUTS EACH PIVOTALLY CONNECTED AT ITS LOWER END TO SAID FIXED STRUCTURE AND AT ITS UPPER END TO SAID MOVABLE STRUCTURE AND NORMALLY SUPPORTING THE SAME IN ELEVATED RELATION TO THE LOAD SUPPORTING SURFACE, THE PIVOT AXES BEING PARALLEL TO THE GENERAL PLANE OF SAID MOVABLE STRUCTURE AND FORMING THE CORNERS OF A PARALLELOGRAM, THE UPPER ENDS OF SAID STRUTS AND SAID MOVABLE STRUCTURE BEING AT THEIR MAXIMUM HEIGHTS WHEN SAID MOVABLE STRUCTURE IS FULLY RETRACTED TOWARD SAID FIXED STRUCTURE WHEREBY MOVEMENT OF SAID MOVABLE STRUCTURE AWAY FROM SAID FIXED STRUCTURE IS EFFECTED BY GRAVITY.
Claim 2
Dependent Claim
186 words
AN ADJUSTABLE BULKHEAD DEVICE FOR USE ON A HORIZONTAL LOAD SUPPORTING SURFACE, COMPRISING UPSTANDING STRUCTURE FIXED ON THE SURFACE, A VERTICALLY DISPOSED MOVABLE BULKHEAD STRUCTURE NORMALLY POSITIONED ADJACENT SAID FIXED STRUCTURE, MEANS FOR MOVING SAID MOVABLE STRUCTURE IN A DIRECTION PERPENDICULAR TO ITS GENERAL PLANE TO SELECTED POSITIONS SPACED FROM SAID FIXED STRUCTURE AND FOR MAINTAINING SAID MOVABLE STRUCTURE SUBSTANTIALLY UPRIGHT AT ALL TIMES, AND MEANS INDEPENDENT OF SAID FIRST NAMED MEANS PROVIDING HORIZONTAL SUPPORTING FOR SAID MOVABLE STRUCTURE FROM SAID FIXED STRUCTURE, SAID FIRST NAMED MEANS COMPRISING A PAIR OF STRUTS EACH PIVOTALLY CONNECTED AT ITS LOWER END TO SAID FIXED STRUCTURE AND AT ITS UPPER END TO SAID MOVABLE STRUCTURE AND NORMALLY SUPPORTING THE SAME IN ELEVATED RELATION TO THE LOAD SUPPORTING SURFACE, THE PIVOT AXES BEING PARALLEL TO THE GENERAL PLANE OF SAID MOVABLE STRUCTURE AND FORMING THE CORNERS OF A PARALLELOGRAM, THE UPPER ENDS OF SAID STRUTS AND SAID MOVABLE STRUCTURE BEING AT THEIR MAXIMUM HEIGHTS WHEN SAID MOVABLE STRUCTURE IS FULLY RETRACTED TOWARD SAID FIXED STRUCTURE WHEREBY MOVEMENT OF SAID MOVABLE STRUCTURE AWAY FROM SAID FIXED STRUCTURE IS EFFECTED BY GRAVITY.
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |