Pipe cleaning device
Abstract
Abstract A CLEANING DEVICE FOR THE OUTSIDE SURFACE OF A PIPE COMPRISES A PAIR OF SEMI-ANNULAR MEMBERS EACH HAVING A PAIR OF OPPOSITE FREE ENDS 180* APART, EACH OF THE SEMI-ANNULAR MEMBERS HAVING A SEMI-CIRCULAR INNER SURFACE AND A SEMI-CIRCULAR OUTER SURFACE. A HINGE DEVICE AT A CORRESPONDING FREE END OF EACH OF THE MEMBERS HINGEDLY JOINS THE MEMBERS TO EACH OTHER. A RELEASABLE FASTENER AT THE OTHER CORRESPONDING FREE END OF EACH OF THE MEMBERS RELEASABLY AFFIXES THE MEMBERS TO EACH OTHER IN SUBSTANTIALLY O-SHAPED CONFIGURATION. A PLURALITY OF WIRE BRUSH BRISTLES ARE AFFIXED TO THE INNER SURFACE OF EACH OF THE MEMBERS AND EXTEND SUBSTANTIALLY RADIALLY INWARD. A HOUSING ENCLOSES PART OF THE SEMI-ANNULAR MEMBERS. A DRIVING DEVICE IN THE HOUSING IS COUPLED TO THE SEMI-ANNULAR MEMBERS FOR ROTATING THE MEMBERS ABOUT THEIR COMMON AXIS.
Inventors
- 👤 J Stone
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |