Patent EP0978990A3 successfully refreshed from Google Patents.
Patent US6788339B1 successfully refreshed from Google Patents.
US3302931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ratchet winch
Assignee: Individual
•
Filing: 1966-06-15
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Granted: 1967-02-07
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Expires: 1986-06-15
Abstract
No abstract record available.
Inventors
- 👤 Walter L Blackburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:28
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/02; B66D1/04; B66D1/06; B63; B63B; B63B21/00; B63B21/16; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1558; Y10T74/1565; Y10T74/1576
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A RATCHET WINCH FOR INTERCONNECTING A BARGE TRAIN BY CABLE INCLUDING, A BASE PLATE, SIDE MEMBERS ATTACHED TO SAID BASE PLATE, A SHAFT MOUNTED FOR ROTATION BETWEEN SAID SIDE MEMBERS, A FREELY ROTATABLE DRUM MOUNTED ON SAID SHAFT HAVING A RATCHET WHEEL WITH TEETH AND A HAND WHEEL CONNECTED THEREWITH, WEDGE MEANS MOUNTED ON SAID DRUM TO FORCIBLY ATTACH THE CABLE TO THE DRUM, MEANS MOUNTED ON SAID BASE PLATE TO EXPEDITIOUSLY SECURE AS WELL AS REMOVE SAID WEDGE MEANS BY OSCILLATING OPERATION OF THE HAND WHEEL, BRAKE MEANS ENGAGEABLE WITH SAID HAND WHEEL, MEANS FOR LIMITING THE NUMBER OF WINDS OF CABLE ON SAID DRUM SO AS TO MAINTAIN HIGH MECHANICAL ADVANTAGE OF THE RATCHET WINCH, MANUALLY OPERABLE RECIPROCATING MEANS TO DRIVE THE RATCHET WHEEL, FREELY RELEASABLE DOG MEANS ENGAGING SAID RATCHET WHEEL AND LIMITING ROTATION OF SAID RATCHET WHEEL RELATIVE TO SAID SHAFT, AND MEANS FOR PIVOTALLY INTERCONNECTING ONE END OF SAID BASE PLATE TO A BARGE WHEREBY THE RATCHET WINCH IS HORIZONTALLY AND VERTICALLY MANEUVERABLE.
Claim 2
Dependent Claim
168 words
A RATCHET WINCH FOR INTERCONNECTING A BARGE TRAIN BY CABLE INCLUDING, A BASE PLATE, SIDE MEMBERS ATTACHED TO SAID BASE PLATE, A SHAFT MOUNTED FOR ROTATION BETWEEN SAID SIDE MEMBERS, A FREELY ROTATABLE DRUM MOUNTED ON SAID SHAFT HAVING A RATCHET WHEEL WITH TEETH AND A HAND WHEEL CONNECTED THEREWITH, WEDGE MEANS MOUNTED ON SAID DRUM TO FORCIBLY ATTACH THE CABLE TO THE DRUM, MEANS MOUNTED ON SAID BASE PLATE TO EXPEDITIOUSLY SECURE AS WELL AS REMOVE SAID WEDGE MEANS BY OSCILLATING OPERATION OF THE HAND WHEEL, BRAKE MEANS ENGAGEABLE WITH SAID HAND WHEEL, MEANS FOR LIMITING THE NUMBER OF WINDS OF CABLE ON SAID DRUM SO AS TO MAINTAIN HIGH MECHANICAL ADVANTAGE OF THE RATCHET WINCH, MANUALLY OPERABLE RECIPROCATING MEANS TO DRIVE THE RATCHET WHEEL, FREELY RELEASABLE DOG MEANS ENGAGING SAID RATCHET WHEEL AND LIMITING ROTATION OF SAID RATCHET WHEEL RELATIVE TO SAID SHAFT, AND MEANS FOR PIVOTALLY INTERCONNECTING ONE END OF SAID BASE PLATE TO A BARGE WHEREBY THE RATCHET WINCH IS HORIZONTALLY AND VERTICALLY MANEUVERABLE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |