Hinge with quadrilateral swing joint and mounting plate therefor
Abstract
Abstract A HINGE OF THE TYPE HAVING A PAIR OF PIVOT MEMBERS FORMING A QUADRILATERAL SWING JOINT. OPPOSITE END PORTIONS OF THE PIVOT MEMBERS ARE PIVOTALLY CONNECTED TO A HOLDER MOUNTED UPON A DOOR AND A CARRIER ARM REMOVABLY MOUNTED IN A MOUNTING MEMBER FASTENED TO A CARRIER WALL. AN INNERMOST ONE OF THE PIVOT MEMBERS IS PIVOTALLY CONNECTED TO THE CARRIER ARM AT A POINT OVERLYING A FASTENING MEMBER SECURING THE MOUNTING PLATE TO THE CARRIER WALL. ADJUSTMENT MEANS PASS THROUGH THE CARRIER ARM IMMEDIATELY ADJACENT THE PIVOT POINT OF THE INNERMOST PIVOT MEMBER AND ENGAGES AGAINST THE MOUNTING PLATE. THE CARRIER ARM IS FURTHER CHARACTERIZED BY A SUBSTANTIALLY U-SHAPED CROSS SECTION FORMING A BASE PORTION INTERMEDIATE A PAIR OF SPACED LEG PORTIONS AND HAS A LONGITUDINALLY ELONGATED SLOT FORMED IN THE BASE PORTION FOR RECEIVING AN ATTACHMENT MEMBER COOPERATING WITH THE SLOT TO SPREAD THE LEGS INTO FIRM ENGAGEMENT WITH OPPOSED, CONFRONTING WALL PORTIONS OF THE MOUNTING PLATE.
Inventors
- 👤 Karl Lautenschlager Jr
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |