Method and apparatus for manufacturing structural semijoist
Abstract
Abstract AN APPARATUS AND METHOD FOR PRODUCING PARTIAL STRUCTURAL GIRDERS OR SEMIJOISTS FROM TWO ELONGATED STRAND MEMBERS BY FORMING ONE STRAND MEMBER INTO A V-SHAPED CONFIGURATION WITH AN APEX, WHICH APEX CONTACTS THE SECOND STRAND MEMBER, AND IS JOINED THERETO. THE FIRST STRAND MEMBER IS FIXEDLY SUPPORTED AT TWO PRESELECTED END POINTS BY TWO SUPPORT MEANS WHILE A POWER FORMING MEANS, OPERATIVE THROUGH A PREDETERMINED DISTANCE, OPERATES AGAINST THE STRAND TO FORM AND STRETCH IT INTO THE V-SHAPED CONFIGURATION. MOVEMENT OF THE POWER FORMING MEANS FORCES ONE SUPPORT MEANS TOWARDS THE OTHER DURING THE FORMING OPERATION. AT THE BOTTOM OF THE FORMING STROKE, THE APEX OF THE V-SHAPED CONFIGURATION CONTACTS THE SECOND STRAND MEMBER AND IS JOINED THERETO BY JOINING MEANS. THIS PROCESS IS REPEATED UNTIL A SEMIJOIST IS COMPLETED HAVING A SUCCESSION OF V-SHAPED CONFIGURATIONS.
Inventors
- 👤 Anatol Michelson
- 👤 Robert W Cruger
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) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |