Patent US3231240A successfully refreshed from Google Patents.
US3231240A
Expired / Lapsed
US
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Rope drawing apparatus
Assignee: Individual
•
Filing: 1964-01-22
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Granted: 1966-01-25
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Expires: 1984-01-22
Abstract
No abstract record available.
Inventors
- 👤 Naito Ichinosuke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:12
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/60; B66D1/74; B66D1/7415; B66D3/00; B66D3/12; B66D3/14; Y; Y10; Y10T; Y10T24/00; Y10T24/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A ROPE DRIVING APPARATUS FOR LIFTING LOADS BY MEANS OF A ROPE, COMPRISING A FRAME, A GROOVED DRIVING PULLEY ROTATABLY MOUNTED ON SAID FRAME AND ADAPTED TO HAVE A LOAD CARRYING ROPE MEMBER THEREAROUND, A FLEXIBLE BAND EXTENDING AROUND AT LEAST A PORTION OF THE PERIPHERY OF THE DRIVING PULLEY, SAID BAND HAVING ONE END FIXED TO SAID FRAME AND BEING ADAPTED TO BEAR ON THE LOAD CARRYING ROPE MEMBER AND PRESS IT INTO THE GROOVE IN THE PULLEY, A FRAME SUPPORTING MEMBER ADAPTED TO SUPPORT SAID APPARATUS FROM A FIXED SUPPORT, AND COUPLING MEANS SECURED TO THE FREE END OF SAID BAND AND ADAPTED TO BE COUPLED TO ONE OF SAID MEMBERS FOR TRANSMITTING THE TENSION IN SAID ONE OF SAID MEMBERS DUE TO A LOAD ON SAID LOAD CARRYING ROPE MEMBER TO SAID BAND, SAID TENSION BEING PROPOR-
Claim 2
Dependent Claim
140 words
A ROPE DRIVING APPARATUS FOR LIFTING LOADS BY MEANS OF A ROPE, COMPRISING A FRAME, A GROOVED DRIVING PULLEY ROTATABLY MOUNTED ON SAID FRAME AND ADAPTED TO HAVE A LOAD CARRYING ROPE MEMBER THEREAROUND, A FLEXIBLE BAND EXTENDING AROUND AT LEAST A PORTION OF THE PERIPHERY OF THE DRIVING PULLEY, SAID BAND HAVING ONE END FIXED TO SAID FRAME AND BEING ADAPTED TO BEAR ON THE LOAD CARRYING ROPE MEMBER AND PRESS IT INTO THE GROOVE IN THE PULLEY, A FRAME SUPPORTING MEMBER ADAPTED TO SUPPORT SAID APPARATUS FROM A FIXED SUPPORT, AND COUPLING MEANS SECURED TO THE FREE END OF SAID BAND AND ADAPTED TO BE COUPLED TO ONE OF SAID MEMBERS FOR TRANSMITTING THE TENSION IN SAID ONE OF SAID MEMBERS DUE TO A LOAD ON SAID LOAD CARRYING ROPE MEMBER TO SAID BAND, SAID TENSION BEING PROPOR-
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |