US3151418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe cleaning apparatus
Assignee: Pangborn Corp
•
Filing: 1963-07-16
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Granted: 1964-10-06
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 George W Powell
- 👤 Charles P Croft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:12
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B24; B24C; B24C3/00; B24C3/32; B24C3/325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PIPE CLEANING APPARATUS COMPRISING A BLAST CHAMBER, MEANS FOR FEEDING AND WITHDRAWING A PIPE INTO SAID CHAMBER, MEANS IN SAID CHAMBER FOR ROTATING SAID PIPE, A CARRIAGE, MEANS FOR MOVING SAID CARRIAGE INTO AND OUT OF SAID CHAMBER, AN UPPER ARM SUPPORTED ON SAID CARRIAGE, A LOWER ARM SUPPORTED ON SAID CARRIAGE, AN ABRASIVE BLASTING WHEEL SUPPORTED AT THE FREE END OF EACH ARM, AND MEANS CONNECTED WITH SAID ARMS FOR FEEDING ABRASIVE TO SAID WHEELS SUPPORTED BY EACH ARM, SAID LOWER ARM BEING SO POSITIONED AS TO EXTEND INTO AND TRAVEL ALONG THE PIPE INTERIOR AND SAID UPPER ARM BEING SO POSITIONED THAT IT TRAVELS ALONG THE PIPE EXTERIOR.
Claim 2
Dependent Claim
111 words
A PIPE CLEANING APPARATUS COMPRISING A BLAST CHAMBER, MEANS FOR FEEDING AND WITHDRAWING A PIPE INTO SAID CHAMBER, MEANS IN SAID CHAMBER FOR ROTATING SAID PIPE, A CARRIAGE, MEANS FOR MOVING SAID CARRIAGE INTO AND OUT OF SAID CHAMBER, AN UPPER ARM SUPPORTED ON SAID CARRIAGE, A LOWER ARM SUPPORTED ON SAID CARRIAGE, AN ABRASIVE BLASTING WHEEL SUPPORTED AT THE FREE END OF EACH ARM, AND MEANS CONNECTED WITH SAID ARMS FOR FEEDING ABRASIVE TO SAID WHEELS SUPPORTED BY EACH ARM, SAID LOWER ARM BEING SO POSITIONED AS TO EXTEND INTO AND TRAVEL ALONG THE PIPE INTERIOR AND SAID UPPER ARM BEING SO POSITIONED THAT IT TRAVELS ALONG THE PIPE EXTERIOR.
References Cited (Backward Citations)
US1952848A
Cited
US2089597A
Cited
US2131769A
Cited
US2358557A
Cited
US2460989A
Cited
US2621446A
Cited
US2951319A
Cited
US3058137A
Cited
US3052066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |