US3175238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable loading ramp
Assignee: Individual
•
Filing: 1962-03-30
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Granted: 1965-03-30
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Expires: 1982-03-30
Abstract
No abstract record available.
Inventors
- 👤 Pennington Margaret Redick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:07
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/28; B65G69/2805; B65G69/2811; B65G69/2817; B65G69/2829
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A LOADING RAMP FOR BRIDGING THE GAP BETWEEN A LOADING DOCK AND A VEHICLE COMPRISING: (A) A PLATFORM MADE UP OF A PLURALITY OF SPACED PARALLEL ARMS, EACH SAID ARMS BEING HINGED ALONG ONE END TO SAID LOADING DOCK; (B) SLIDE MEMBERS POSITIONED ON EACH OF SAID ARMS AND DISPOSED TO SLIDE INWARDLY AND OUTWARDLY ON SAID ARMS SO AS TO EXTEND BEYOND THE FREE END OF SAID ARMS WHEN EXTENDED OUTWARDLY AND INCREASE THE LENGTH OF SAID PLATFORM; (C) LINKING MEANS PIVOTALLY CONNECTING EACH SAID SLIDE MEMBER WITH ITS ADJACENT SLIDE MEMBER AND DISPOSED TO PERMIT EACH SAID ADJACENT SLIDE MEMBER AND ITS ASSOCIATED ARM TO MOVE UPWARDLY AND DOWNWARDLY IN RESPECT TO ONE ANOTHER FOR A PREDETERMINED DISTANCE WHILE CONNECTING SAID SLIDE MEMBERS SO THAT THEY SLIDE INWARDLY AND OUTWARDLY ON SAID ARMS SUBSTANTIALLY UNIFORMLY; (D) POWER MEANS FOR RAISING AND LOWERING SAID ARMS AND SLIDE MEMBERS AND (E) POWER MEANS FOR SLIDING SAID SLIDE MEMBERS INWARDLY AND OUTWARDLY ON SAID ARMS.
Claim 2
Dependent Claim
164 words
A LOADING RAMP FOR BRIDGING THE GAP BETWEEN A LOADING DOCK AND A VEHICLE COMPRISING: (A) A PLATFORM MADE UP OF A PLURALITY OF SPACED PARALLEL ARMS, EACH SAID ARMS BEING HINGED ALONG ONE END TO SAID LOADING DOCK; (B) SLIDE MEMBERS POSITIONED ON EACH OF SAID ARMS AND DISPOSED TO SLIDE INWARDLY AND OUTWARDLY ON SAID ARMS SO AS TO EXTEND BEYOND THE FREE END OF SAID ARMS WHEN EXTENDED OUTWARDLY AND INCREASE THE LENGTH OF SAID PLATFORM; (C) LINKING MEANS PIVOTALLY CONNECTING EACH SAID SLIDE MEMBER WITH ITS ADJACENT SLIDE MEMBER AND DISPOSED TO PERMIT EACH SAID ADJACENT SLIDE MEMBER AND ITS ASSOCIATED ARM TO MOVE UPWARDLY AND DOWNWARDLY IN RESPECT TO ONE ANOTHER FOR A PREDETERMINED DISTANCE WHILE CONNECTING SAID SLIDE MEMBERS SO THAT THEY SLIDE INWARDLY AND OUTWARDLY ON SAID ARMS SUBSTANTIALLY UNIFORMLY; (D) POWER MEANS FOR RAISING AND LOWERING SAID ARMS AND SLIDE MEMBERS AND (E) POWER MEANS FOR SLIDING SAID SLIDE MEMBERS INWARDLY AND OUTWARDLY ON SAID ARMS.
References Cited (Backward Citations)
FR814162A
Cited
US2624251A
Cited
US2714735A
Cited
US2527653A
Cited
US2689965A
Cited
US2881457A
Cited
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Cited
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Cited
US2993219A
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 |