Connector for joining rectangular and circular conduits
Abstract
Abstract A CONNECTOR FOR ADJOINING A CONDUIT OF RECTANGULAR CROSS SECTION WITH ANOTHER CONDUIT OF CIRCULAR CROSS SECTION IS PROVIDED AT ITS ENDS WITH A PORTION OF RECTANGULAR CROSS SECTION AND WITH ANOTHER PORTION OF CIRCULAR CROSS SECTION WHICH PORTIONS ARE ADJOINED TO FORM A UNITARY STRUCTURE. THE JUNCTION BETWEEN THE END PORTIONS OF THE CONNECTOR IS FORMED IN SUCH A WAY THAT THE CIRCULAR PORTION IS BEVELLED AND ARRANGED IN TANGENTIAL RELATIONSHIP TO THREE INTERCONNECTING SIDES OF THE PORTION OF RECTANGULAR CROSS SECTION AND THE FOURTH SIDE THEREOF IS ADJOINED TO THE BEVELLED END OF THE CIRCULAR PORTION BY AN ARCUATE SEGMENT. THE PORTION OF THE CONNECTOR WHICH IS OF RECTANGULAR CROSS SECTION IS PROVIDED AT ITS OUTER END WITH A COLLAR PORTION FOR RECEIVING THE END OF A RECTANGULAR CONDUIT AND A WATER-TIGHT JUNCTION IS FORMED THEREBETWEEN BY MEANS OF LEAD CAULKING AND TO WHICH IS BONDED A RING OF ALLOY FORMED INTEGRALLY WITH THE RECTANGULAR CONDUIT.
Inventors
- 👤 Frederick A Wrren
Bibliographic Details
Claims Analysis
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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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |