US3243878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe cutter
Assignee: Reed Manufacturing Co
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Filing: 1964-01-17
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Granted: 1966-04-05
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Expires: 1984-01-17
Abstract
No abstract record available.
Inventors
- 👤 Bengt G Bjalme
- 👤 Thomas G Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:40
CPC Classifications
B; B23; B23D; B23D21/00; B23D21/06; B23D21/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
IN A CUTTER FOR PIPE OF THE TYPE COMPRISING A PLURALITY OF FRAME SECTIONS ARRANGED END TO END ABOUT THE PIPE WITH ADJACENT ENDS OF THE FRAME SECTIONS SPACED FROM EACH OTHER, A PAIR OF ANGULARLY SPACED WHEELS JOURNALED IN EACH FRAME SECTION BETWEEN THE ENDS THEREOF, A CUTTING TOOL BETWEEN THE WHEELS ON AT LEAST ONE FRAME SECTION IN A PLANE PERPENDICULAR TO THE AXIS OF THE PIPE, MEANS FOR ADVANCING THE TOOL IN THE PIPE, LINKS CONNECTING THE ADJACENT ENDS OF THE FRAME SECTIONS, EACH LINK HAVING A THREADED END PROJECTING THROUGH AN END OF ONE OF THE FRAME SECTIONS, AND A NUT SCREWED ON THE THREADED END OF THE LINK AND IN THRUST RELATION TO THE ASSOCIATED END OF SAID ONE FRAME SECTION, THE IMPROVEMENT WHICH COMPRISES PROVIDING EACH LINK WITH A NOTCHED END OPPOSITE ITS THREADED END, SAID NOTCHED END SLIDABLY PROJECTING THROUGH AN END OF A FRAME SECTION ADJACENT SAID ONE FRAME SECTION, SAID END OF THE ADJACENT FRAME SECTION HAVING A PIN RECEIVABLE IN A NOTCH IN SAID NOTCHED END OF THE LINK, AND SPRING MEANS BIASING THE NOTCHED END OF THE LINK INTO ENGAGEMENT WITH SAID PIN.
Claim 2
Dependent Claim
194 words
IN A CUTTER FOR PIPE OF THE TYPE COMPRISING A PLURALITY OF FRAME SECTIONS ARRANGED END TO END ABOUT THE PIPE WITH ADJACENT ENDS OF THE FRAME SECTIONS SPACED FROM EACH OTHER, A PAIR OF ANGULARLY SPACED WHEELS JOURNALED IN EACH FRAME SECTION BETWEEN THE ENDS THEREOF, A CUTTING TOOL BETWEEN THE WHEELS ON AT LEAST ONE FRAME SECTION IN A PLANE PERPENDICULAR TO THE AXIS OF THE PIPE, MEANS FOR ADVANCING THE TOOL IN THE PIPE, LINKS CONNECTING THE ADJACENT ENDS OF THE FRAME SECTIONS, EACH LINK HAVING A THREADED END PROJECTING THROUGH AN END OF ONE OF THE FRAME SECTIONS, AND A NUT SCREWED ON THE THREADED END OF THE LINK AND IN THRUST RELATION TO THE ASSOCIATED END OF SAID ONE FRAME SECTION, THE IMPROVEMENT WHICH COMPRISES PROVIDING EACH LINK WITH A NOTCHED END OPPOSITE ITS THREADED END, SAID NOTCHED END SLIDABLY PROJECTING THROUGH AN END OF A FRAME SECTION ADJACENT SAID ONE FRAME SECTION, SAID END OF THE ADJACENT FRAME SECTION HAVING A PIN RECEIVABLE IN A NOTCH IN SAID NOTCHED END OF THE LINK, AND SPRING MEANS BIASING THE NOTCHED END OF THE LINK INTO ENGAGEMENT WITH SAID PIN.
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |