Patent US3333822A successfully refreshed from Google Patents.
US3333822A
Expired / Lapsed
US
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Electric hoist
Assignee: Individual
•
Filing: 1966-07-29
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Granted: 1967-08-01
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Expires: 1986-07-29
Abstract
No abstract record available.
Inventors
- 👤 Horvath Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:02
CPC Classifications
B; B66; B66B; B66B5/00; B66B5/02; B66B5/16; B66B5/18; B66B5/185; B66B5/20; B66C; B66C13/00; B66C13/18; B66C13/22; B66C2700/00; B66C2700/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A LOAD CARRYING DEVICE FOR MOVING ALONG A CABLE COMPRISING A FRAME CAPABLE OF ATTACHMENT TO A LOAD TO BE SUPPORTED THEREBY, A DRIVEN GEAR WHEEL ROTATABLY MOUNTED ON SAID FRAME, A CABLE DRUM OPERATIVELY CONNECTED TO SAID GEAR WHEEL FOR ROTATION THEREWITH, A BLOCK MOUNTED ON SAID FRAME, A SHAFT ROTATABLY MOUNTED THROUGH SAID BLOCK, SAID BLOCK HAVING A FIRST RECESS, AN ELONGATED RECESS WITH A SLANTING SIDE AND A CYLINDRICAL OPENING FOR THE CABLE EXTENDING BETWEEN AND COMMUNICATING WITH BOTH OF SAID RECESSES, A CAM CARRIED BY SAID SHAFT FOR ROTATION THEREWITH WITHIN SAID FIRST RECESS AND CAPABLE OF AT TIMES ENGAGING THE CABLE IN SAID BLOCK OPENING, A SECOND BLOCK SLIDEABLY POSITIONED IN SAID ELONGATED RECESS HAVING A SLANTING SIDE POSITION ON SAID ELONGATED RECESS SLANTING SIDE AND AN OPPOSITE TOOTHED SIDE POSITION IN SAID FIRST BLOCK OPENING, A PAWL PIVOTALLY CARRIED BY SAID SHAFT CAPABLE OF ENGAGING SAID GEAR WHEEL FOR STOPPING THE SAME AND HAVING A RECESS AND A STUB AXLE CARRIED BY SAID SECOND BLOCK AND EXTENDING INTO SAID PAWL RECESS.
Claim 2
Dependent Claim
177 words
A LOAD CARRYING DEVICE FOR MOVING ALONG A CABLE COMPRISING A FRAME CAPABLE OF ATTACHMENT TO A LOAD TO BE SUPPORTED THEREBY, A DRIVEN GEAR WHEEL ROTATABLY MOUNTED ON SAID FRAME, A CABLE DRUM OPERATIVELY CONNECTED TO SAID GEAR WHEEL FOR ROTATION THEREWITH, A BLOCK MOUNTED ON SAID FRAME, A SHAFT ROTATABLY MOUNTED THROUGH SAID BLOCK, SAID BLOCK HAVING A FIRST RECESS, AN ELONGATED RECESS WITH A SLANTING SIDE AND A CYLINDRICAL OPENING FOR THE CABLE EXTENDING BETWEEN AND COMMUNICATING WITH BOTH OF SAID RECESSES, A CAM CARRIED BY SAID SHAFT FOR ROTATION THEREWITH WITHIN SAID FIRST RECESS AND CAPABLE OF AT TIMES ENGAGING THE CABLE IN SAID BLOCK OPENING, A SECOND BLOCK SLIDEABLY POSITIONED IN SAID ELONGATED RECESS HAVING A SLANTING SIDE POSITION ON SAID ELONGATED RECESS SLANTING SIDE AND AN OPPOSITE TOOTHED SIDE POSITION IN SAID FIRST BLOCK OPENING, A PAWL PIVOTALLY CARRIED BY SAID SHAFT CAPABLE OF ENGAGING SAID GEAR WHEEL FOR STOPPING THE SAME AND HAVING A RECESS AND A STUB AXLE CARRIED BY SAID SECOND BLOCK AND EXTENDING INTO SAID PAWL RECESS.
References Cited (Backward Citations)
US2508187A
Cited
US2922623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |