US3352573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinged pipe connectors
Assignee: Alex F Walker & Associates Inc
•
Filing: 1966-06-17
•
Granted: 1967-11-14
•
Expires: 1986-06-17
Abstract
No abstract record available.
Inventors
- 👤 Walter L Canning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:59
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0849; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; F01N13/1838; F01N13/1844; F01N13/1855; F01N2590/00; F01N2590/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A HINGED CONNECTOR FOR TRUCK EXHAUST PIPE STACKS FOR LOWERABLE ERECTING A TOP PIPE ABOVE A BOTTOM PIPE SO AS TO EXTEND THE STACK ABOVE THE TRUCK BODY FOR ROAD TRAVEL AND TO LOWER THE STACK FOR MOVING UNDER LOW OBSTRUCTIONS COMPRISING, A BOTTOM PORTION CONNECTABLE TO A BOTTOM PIPE, A TOP PORTION CONNECTABLE TO A TOP PIPE, A HINGE PORTION BETWEEN SAID TOP AND BOTTOM PORTIONS, AND SECURING MEANS NORMALLY HOLDING SAID TOP AND BOTTOM PORTIONS CLOSED RELATIVE TO ONE ANOTHER, EACH SAID TOP AND BOTTOM PORTION INCLUDING A PLATE HAVING AN APERTURE, AN ANNULAR FLANGE SURROUNDING SAID APERTURE, PAIRED SIDE FLANGES SPACED FROM SAID ANNULAR FLANGE, AND STAGGERED HINGE ARM LOOPS; SAID ANNULAR FLANGE AND SAID SIDE FLANGES HAVING BOLT HOLES FOR RECEIVING BOLTS TO CONNCET TO A PIPE; SAID PLATES BEING OPPOSITELY DISPOSED RELATIVE TO ONE ANOTHER WITH THEIR FLANGES EXTENDING IN OPPOSITE DIRECTIONS; AND EACH SAID PLATE HAVING A PLANE SIDE FACING ONE ANOTHER.
Claim 2
Dependent Claim
158 words
A HINGED CONNECTOR FOR TRUCK EXHAUST PIPE STACKS FOR LOWERABLE ERECTING A TOP PIPE ABOVE A BOTTOM PIPE SO AS TO EXTEND THE STACK ABOVE THE TRUCK BODY FOR ROAD TRAVEL AND TO LOWER THE STACK FOR MOVING UNDER LOW OBSTRUCTIONS COMPRISING, A BOTTOM PORTION CONNECTABLE TO A BOTTOM PIPE, A TOP PORTION CONNECTABLE TO A TOP PIPE, A HINGE PORTION BETWEEN SAID TOP AND BOTTOM PORTIONS, AND SECURING MEANS NORMALLY HOLDING SAID TOP AND BOTTOM PORTIONS CLOSED RELATIVE TO ONE ANOTHER, EACH SAID TOP AND BOTTOM PORTION INCLUDING A PLATE HAVING AN APERTURE, AN ANNULAR FLANGE SURROUNDING SAID APERTURE, PAIRED SIDE FLANGES SPACED FROM SAID ANNULAR FLANGE, AND STAGGERED HINGE ARM LOOPS; SAID ANNULAR FLANGE AND SAID SIDE FLANGES HAVING BOLT HOLES FOR RECEIVING BOLTS TO CONNCET TO A PIPE; SAID PLATES BEING OPPOSITELY DISPOSED RELATIVE TO ONE ANOTHER WITH THEIR FLANGES EXTENDING IN OPPOSITE DIRECTIONS; AND EACH SAID PLATE HAVING A PLANE SIDE FACING ONE ANOTHER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |