US3176853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile lift apparatus
Assignee: DROTT Manufacturing CORP
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Filing: 1964-07-08
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Granted: 1965-04-06
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Expires: 1984-07-08
Abstract
No abstract record available.
Inventors
- 👤 George J Baudhuin
- 👤 Arnold C Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:43
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/22; B66C1/223; B66C19/00; B66C19/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
227 words
MOBILE LIFT APPARATUS INCLUDING FIRST AND SECOND GANTRY-TYPE FRAMES EACH INCLUDING A BRIDGE PORTION AND DEPENDING LEGS, A SIDE BEAM ATTACHED TO EACH OF THE LEGS OF SAID FIRST FRAME, A BEARING MEMBER SLIDABLY MOUNTED ON EACH OF SAID SIDE BEAMS, THE LEGS OF SAID SECOND FRAME BEING ATTACHED TO SAID BEARING MEMBERS FOR MOVEMENT TOWARD AND AWAY FROM SAID FIRST FRAME, SUPPORT WHEELS ATTACHED TO SAID FIRST AND SECOND FRAMES, FIRST AND SECOND TRANSVERSE BEAMS RESPECTIVELY EXTENDING BETWEEN THE LEGS OF SAID FIRST AND SECOND FRAMES, POWER MEANS MOUNTED ON EACH OF SAID FIRST AND SECOND FRAMES AND HAVING CABLES ATTACHED TO THE ENDS OF THE RESPECTIVE ONES OF SAID TRANSVERSE BEAMS FOR ELEVATING AND LOWERING THE SAME, A VERTICAL GUIDE RAIL ON EACH OF THE LEGS OF SAID FIRST AND SECOND FRAMES, A GUIDE ON EACH OF SAID RAILS, MEANS CONNECTING THE GUIDES TO THE RESPECTIVE TRANSVERSE BEAMS TO INHIBIT MOVEMENT OF THE TRANSVERSE BEAMS IN A DIRECTION LONGITUDINALLY OF THE LIFT APPARATUS, CARRIAGE MEANS ON EACH TRANSVERSE BEAM, A CRADLE INCLUDING FIRST AND SECOND SECTIONS ATTACHED TO SAID CARRIAGES RESPECTIVELY AND ADJUSTABLE RELATIVE TO EACH OTHER IN A DIRECTION LONGITUDINALLY OF THE LIFT APPARATUS AS SAID FIRST AND SECOND FRAMES ARE MOVED TOWARD AND AWAY FROM EACH OTHER, AND MEANS ON SAID CRADLE FOR SUPPORTING THE OBJECT TO BE LIFTED BY THE LIFT APPARATUS.
Claim 2
Dependent Claim
227 words
MOBILE LIFT APPARATUS INCLUDING FIRST AND SECOND GANTRY-TYPE FRAMES EACH INCLUDING A BRIDGE PORTION AND DEPENDING LEGS, A SIDE BEAM ATTACHED TO EACH OF THE LEGS OF SAID FIRST FRAME, A BEARING MEMBER SLIDABLY MOUNTED ON EACH OF SAID SIDE BEAMS, THE LEGS OF SAID SECOND FRAME BEING ATTACHED TO SAID BEARING MEMBERS FOR MOVEMENT TOWARD AND AWAY FROM SAID FIRST FRAME, SUPPORT WHEELS ATTACHED TO SAID FIRST AND SECOND FRAMES, FIRST AND SECOND TRANSVERSE BEAMS RESPECTIVELY EXTENDING BETWEEN THE LEGS OF SAID FIRST AND SECOND FRAMES, POWER MEANS MOUNTED ON EACH OF SAID FIRST AND SECOND FRAMES AND HAVING CABLES ATTACHED TO THE ENDS OF THE RESPECTIVE ONES OF SAID TRANSVERSE BEAMS FOR ELEVATING AND LOWERING THE SAME, A VERTICAL GUIDE RAIL ON EACH OF THE LEGS OF SAID FIRST AND SECOND FRAMES, A GUIDE ON EACH OF SAID RAILS, MEANS CONNECTING THE GUIDES TO THE RESPECTIVE TRANSVERSE BEAMS TO INHIBIT MOVEMENT OF THE TRANSVERSE BEAMS IN A DIRECTION LONGITUDINALLY OF THE LIFT APPARATUS, CARRIAGE MEANS ON EACH TRANSVERSE BEAM, A CRADLE INCLUDING FIRST AND SECOND SECTIONS ATTACHED TO SAID CARRIAGES RESPECTIVELY AND ADJUSTABLE RELATIVE TO EACH OTHER IN A DIRECTION LONGITUDINALLY OF THE LIFT APPARATUS AS SAID FIRST AND SECOND FRAMES ARE MOVED TOWARD AND AWAY FROM EACH OTHER, AND MEANS ON SAID CRADLE FOR SUPPORTING THE OBJECT TO BE LIFTED BY THE LIFT APPARATUS.
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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |