US3174634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescopic multi-purpose lifting unit
Assignee: U S IND Inc ENGINEERING Ltd
•
Filing: 1962-02-08
•
Granted: 1965-03-23
•
Expires: 1982-02-08
Abstract
No abstract record available.
Inventors
- 👤 Peck Albert William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:36
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/44; B60P1/4414; B60P1/4421; B60P1/4428
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
A LIFTING DEVICE COMPRISING A HOLLOW OUTER MEMBER OF SUBSTANTIALLY RECTANGULAR SECTION, SAID HOLLOW MEMBER BEING OPEN AT EACH END THEREOF AND HAVING A FIRST LONGITUDINALLY EXTENDING SLOT FORMED THROUGH ONE SIDE THEREOF, LIMIT STOP MEANS BEING DISPOSED AT EACH OPEN END OF SAID HOLLOW OUTER MEMBER, A HOLLOW INTERMEDIATE MEMBER OF SUBSTANTIALLY RECTANGULAR SECTION WITH AND APPROXIMATELY THE SAME LENGTH AS SAID OUTER MEMBER AND HAVING A SECOND LONGITUDINALLY EXTENDING SLOT FORMED THROUGH ONE SIDE THEREOF, THE SAID SLOTS IN SAID HOLLOW OUTER MEMBER AND SAID HOLLOW INTERMEDIATE MEMBER REGISTERING WITH ONE ANOTHER, AN INNER MEMBER WITHIN THE INTERMEDIATE MEMBER AND HAVING A PART PROJECTING THROUGH SAID REGISTERING SLOTS, PROJECTIONS RUNNING ALONG SUBSTANTIALLY THE ENTIRE LENGTH OF THE LONGITUDINALLY EXTENDING OUTER EDGES OF THE INTERMEDIATE MEMBER TO PROVIDE BEARING MEMBERS THEREFOR, SAID BEARING MEMBERS BEARING AGAINST MACHINED INNER BEARING SURFACES FORMED ON SAID OUTER MEMBER, PROJECTIONS RUNNING LONGITUDINALLY ALONG SUBSTANTIALLY THE ENTIRE LENGTH OF THE LONGITUDINALLY EXTENDING OUTER EDGES OF THE INNER MEMBER TO PROVIDE BEARING MEMBERS THEREOF, SAID LAST-MENTIONED BEARING MEMBERS BEARING AGAINST MACHINED INNER BEARING SURFACES ON THE INTERMEDIATE MEMBER, OPERATING MEANS CONNECTED BETWEEN SAID INTERMEDIATE MEMBER AND ONE OF THE OTHER TWO MEMBERS SO AS TO
Claim 2
Dependent Claim
200 words
A LIFTING DEVICE COMPRISING A HOLLOW OUTER MEMBER OF SUBSTANTIALLY RECTANGULAR SECTION, SAID HOLLOW MEMBER BEING OPEN AT EACH END THEREOF AND HAVING A FIRST LONGITUDINALLY EXTENDING SLOT FORMED THROUGH ONE SIDE THEREOF, LIMIT STOP MEANS BEING DISPOSED AT EACH OPEN END OF SAID HOLLOW OUTER MEMBER, A HOLLOW INTERMEDIATE MEMBER OF SUBSTANTIALLY RECTANGULAR SECTION WITH AND APPROXIMATELY THE SAME LENGTH AS SAID OUTER MEMBER AND HAVING A SECOND LONGITUDINALLY EXTENDING SLOT FORMED THROUGH ONE SIDE THEREOF, THE SAID SLOTS IN SAID HOLLOW OUTER MEMBER AND SAID HOLLOW INTERMEDIATE MEMBER REGISTERING WITH ONE ANOTHER, AN INNER MEMBER WITHIN THE INTERMEDIATE MEMBER AND HAVING A PART PROJECTING THROUGH SAID REGISTERING SLOTS, PROJECTIONS RUNNING ALONG SUBSTANTIALLY THE ENTIRE LENGTH OF THE LONGITUDINALLY EXTENDING OUTER EDGES OF THE INTERMEDIATE MEMBER TO PROVIDE BEARING MEMBERS THEREFOR, SAID BEARING MEMBERS BEARING AGAINST MACHINED INNER BEARING SURFACES FORMED ON SAID OUTER MEMBER, PROJECTIONS RUNNING LONGITUDINALLY ALONG SUBSTANTIALLY THE ENTIRE LENGTH OF THE LONGITUDINALLY EXTENDING OUTER EDGES OF THE INNER MEMBER TO PROVIDE BEARING MEMBERS THEREOF, SAID LAST-MENTIONED BEARING MEMBERS BEARING AGAINST MACHINED INNER BEARING SURFACES ON THE INTERMEDIATE MEMBER, OPERATING MEANS CONNECTED BETWEEN SAID INTERMEDIATE MEMBER AND ONE OF THE OTHER TWO MEMBERS SO AS TO
References Cited (Backward Citations)
US533667A
Cited
US1096656A
Cited
US1440400A
Cited
US2553156A
Cited
US2626065A
Cited
US2632530A
Cited
US2595120A
Cited
US2741379A
Cited
FR1072041A
Cited
US2698096A
Cited
FR1108626A
Cited
US2915210A
Cited
US2979162A
Cited
US2904201A
Cited
US3011664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |