Patent US2789927A successfully refreshed from Google Patents.
US2789927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe swabbing machine
Assignee: Individual
•
Filing: 1953-04-22
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Granted: 1957-04-23
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Expires: 1973-04-22
Abstract
No abstract record available.
Inventors
- 👤 Oscar R Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:17
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/14; C23C2/16; C23C2/18; C23C2/185
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
82 words
THE METHOD OF TREATING PIPE SECTION BEING REMOVED FROM A BATH FURNACE WHICH COMPRISES THE STEPS OF MAGNETICALLY SUSPENDING AND SIMULTANEOUSLY CONVEYING BY ROLLING ACTION EACH PIPE SECTION IN TURN LONGITUDINALLY ALONG A GIVEN PATH WITHOUT SCRAPING OR MARRING THE PIPE SURFACE, WIPING THE INTERIOR AND EXTERIOR SURFACES OF EACH PIPE SECTION WITH FLUID UNDER PRESSURE AS THEY CONTINUE THEIR MOVEMENT WITHOUT INTERRUPTION ALONG THE GIVEN PATH, AND DISCHARGING EACH WIPED PIPE SECTION IN TURN AT THE END OF THE GIVEN PATH.
Claim 2
Independent Claim
82 words
THE METHOD OF TREATING PIPE SECTION BEING REMOVED FROM A BATH FURNACE WHICH COMPRISES THE STEPS OF MAGNETICALLY SUSPENDING AND SIMULTANEOUSLY CONVEYING BY ROLLING ACTION EACH PIPE SECTION IN TURN LONGITUDINALLY ALONG A GIVEN PATH WITHOUT SCRAPING OR MARRING THE PIPE SURFACE, WIPING THE INTERIOR AND EXTERIOR SURFACES OF EACH PIPE SECTION WITH FLUID UNDER PRESSURE AS THEY CONTINUE THEIR MOVEMENT WITHOUT INTERRUPTION ALONG THE GIVEN PATH, AND DISCHARGING EACH WIPED PIPE SECTION IN TURN AT THE END OF THE GIVEN PATH.
Claim 3
Dependent Claim
74 words
A PIPE SWABBING MACHINE COMPRISING A FRAME, A SERIES OF POWER DRIVEN MAGNETIZABLE ROLLERS ROTATABLY MOUNTED ON THE UNDER SIDE OF SAID FRAME FROM WHICH TO SUSPEND AND CONVEY MAGNETIZABLE PIPE LONGITUDINALLY OF ITS AXIS, A WIPING MEANS MOUNTED UNDER THE FRAME AND HAVING AN INTERIOR AND AN EXTERIOR FLUID DISCHARGE TO WIPE THE INSIDE AND OUTSIDE OF THE PIPE AS IT TRAVELS ALONG THE FRAME WITHOUT INTERRUPTING THE PROGRESSIVE MOVEMENT OF THE PIPE.
Claim 4
Dependent Claim
74 words
A PIPE SWABBING MACHINE COMPRISING A FRAME, A SERIES OF POWER DRIVEN MAGNETIZABLE ROLLERS ROTATABLY MOUNTED ON THE UNDER SIDE OF SAID FRAME FROM WHICH TO SUSPEND AND CONVEY MAGNETIZABLE PIPE LONGITUDINALLY OF ITS AXIS, A WIPING MEANS MOUNTED UNDER THE FRAME AND HAVING AN INTERIOR AND AN EXTERIOR FLUID DISCHARGE TO WIPE THE INSIDE AND OUTSIDE OF THE PIPE AS IT TRAVELS ALONG THE FRAME WITHOUT INTERRUPTING THE PROGRESSIVE MOVEMENT 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) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |