US3613320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe machining method
Assignee: Individual
•
Filing: 1969-10-08
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Granted: 1971-10-19
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Expires: 1989-10-08
Abstract
Abstract A METHOD OF PREPARING THE END OF A TUBULAR MEMBER WHEREIN THE MACHINING OPERATION ON THE SAID END IS INDEXED OR REFERENCED FROM THE OUTERN PERIPHERY OF THE PIPE. A FOLLOWER ROLLER OR INDEXING WHEEL RIDES CIRCUMFRENTIALLY AROUND THE OUTER PERIPHERY OF THE PIPE DURING OPERATION OF A PIPE END PREPARING APPARATUS. A MACHINING OR GRINDING TOOL IS CARRIED BY THE WHEEL SUPPORT STRUCTURE IN SUCH A MANNER THAT THE TOOL MOVES BOTH CIRCUMEFERENTIALLY AND RADIALLY SIMULTANEOUSLY WITH THE INDEXING WHEEL THUS ASSURING THAT THE FUNCTION BEING PERFORMED ON THE PIPE END IS DIRECTED OR REVERSED FROM THE CONTOUR OF THE OUTER PERIPHERY OF THE TUBULAR MEMBER.
Inventors
- 👤 Perciptimus J Mighton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:27
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/16; Y; Y10; Y10T; Y10T82/00; Y10T82/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |