US2631114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cleaning out obstructions from conduits
Assignee: Individual
•
Filing: 1952-10-14
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Granted: 1953-03-10
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Expires: 1972-10-14
Abstract
No abstract record available.
Inventors
- 👤 John V O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:52
CPC Classifications
E; E03; E03F; E03F9/00; E03F9/002; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20474
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE METHOD OF CLEANING OUT OBSTRUCTIONS FROM CONDUITS WHICH CONSISTS IN FEEDING A HOLLOW FREELY FLEXIBLE SPRING WIRE COIL INTO A CONDUIT WORK END FIRST UNTIL THE WORK END ENCOUNTERS AND OBSTRUCTION, THE COIL BEING SUBSTANTIALLY INTERNALLY UNSUPPORTED WHILE IT IS BEING SO FED, THEN AFTER THE WORK END HAS ENCOUNTERED AN OBSTRUCTION REINFORCING THE COIL INTERNALLY THROUGHOUT SUBSTANTIALLY ITS ENTIRE INNER PERIPHERY AND IN TURNING THE COIL AXIALLY, WHILE IT IS SO REINFORCED, TO CLEAR THE OBSTRUCTION FROM THE CONDUIT.
Claim 2
Independent Claim
81 words
THE METHOD OF CLEANING OUT OBSTRUCTIONS FROM CONDUITS WHICH CONSISTS IN FEEDING A HOLLOW FREELY FLEXIBLE SPRING WIRE COIL INTO A CONDUIT WORK END FIRST UNTIL THE WORK END ENCOUNTERS AND OBSTRUCTION, THE COIL BEING SUBSTANTIALLY INTERNALLY UNSUPPORTED WHILE IT IS BEING SO FED, THEN AFTER THE WORK END HAS ENCOUNTERED AN OBSTRUCTION REINFORCING THE COIL INTERNALLY THROUGHOUT SUBSTANTIALLY ITS ENTIRE INNER PERIPHERY AND IN TURNING THE COIL AXIALLY, WHILE IT IS SO REINFORCED, TO CLEAR THE OBSTRUCTION FROM THE CONDUIT.
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) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |