US3221962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cutting pipe
Assignee: Ridge Tool Co
•
Filing: 1963-11-22
•
Granted: 1965-12-07
•
Expires: 1983-11-22
Abstract
No abstract record available.
Inventors
- 👤 Charles B Small
- 👤 John W Meese
- 👤 Heinrich H Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:20
CPC Classifications
B; B23; B23D; B23D21/00; B23D21/06; B23D21/08; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/371
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A PIPE CUTTER COMPRISING A PAIR OF LEVERS CONNECTED TOGETHER INTERMEDIATE THEIR ENDS AND EACH HAVING A CUTTER MEMBER AT ITS END FOR ENGAGEMENT WITH THE PIPE, A LINK CHAIN HAVING ONE END CONNECTED TO ONE LEVER AND THE OTHER END CONNECTED TO THE OTHER LEVER, SAID CHAIN HAVING LINK PINS AND CUTTER MEMBERS CARRIED BY SAID LINK PINS AND ARRANGED TO BE PLACED IN SURROUNDING RELATION TO SAID PIPE, MEANS TO ACTUATE SAID LEVERS TO PLACE TENSION ON SAID CHAIN COMPRISING SCREW MEANS CONNECTED BETWEEN THE ENDS OF SAID LEVERS REMOTE FROM THE PIPE RATCHET MEANS IN ENGAGEMENT WITH SAID SCREW MEANS AND INCLUDING A RATCHET HANDLE MOVABLE LONGITUDINALLY OF THE PIPE.
Claim 2
Dependent Claim
113 words
A PIPE CUTTER COMPRISING A PAIR OF LEVERS CONNECTED TOGETHER INTERMEDIATE THEIR ENDS AND EACH HAVING A CUTTER MEMBER AT ITS END FOR ENGAGEMENT WITH THE PIPE, A LINK CHAIN HAVING ONE END CONNECTED TO ONE LEVER AND THE OTHER END CONNECTED TO THE OTHER LEVER, SAID CHAIN HAVING LINK PINS AND CUTTER MEMBERS CARRIED BY SAID LINK PINS AND ARRANGED TO BE PLACED IN SURROUNDING RELATION TO SAID PIPE, MEANS TO ACTUATE SAID LEVERS TO PLACE TENSION ON SAID CHAIN COMPRISING SCREW MEANS CONNECTED BETWEEN THE ENDS OF SAID LEVERS REMOTE FROM THE PIPE RATCHET MEANS IN ENGAGEMENT WITH SAID SCREW MEANS AND INCLUDING A RATCHET HANDLE MOVABLE LONGITUDINALLY OF THE PIPE.
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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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |