Method of bending pipe
Abstract
Abstract THE BENDING METHOD OF THIS INVENTION UTILIZES LOADING MECHANISM FOR THE ACCEPTANCE OF LENGTHS OF METAL TUBE, A TUBE FEED MECHANISM FOR POSITIONING THE TUBE AXIALLY AND ROTATIVELY WITH RESPECT TO THE BENDING HEAD, A BENDING HEAD TO FORM THE DESIRED BENDS IN THE TUBE, AND A NUMERICAL CONTROL SYSTEM FOR CONTROLLING THE TUBE FEED MECHANISM AND BENDING HEAD TO BEND THE TUBE AT THE AXIAL AND ROTATIVE POSITION AND TO ANY DESIRED ANGLE OF BEND DICTATED BY THE NUMERICAL INPUT INTELLIGENCE. AFTER EACH BEND IS ACCOMPLISHED, THE TUBE IS AXIALLY ADVANCED TO THE POSITION OF THE NEXT BEND, AND ROTATED IF NECESSARY, BY THE FEED MECHANISM THE SEQUENCE BEING REPEATED FOR ANY DESIRED NUMBER OF BENDS. AFTER THE TUBE IS MOVED THROUGH THE MACHINE BY THE FEED MECHANISM AND THE DESIRED BENDS ARE COMPLETED, THE FEED MECHANISM EJECTS THE TUBE AND INDEXES TO AN INITIAL POSITION FOR THE ACCEPTANCE OF THE NEXT TUBE FROM THE LOADING MACHANISM. SUITABLE ELECTRICAL AND HYDRAULIC CONTROLS, AUXILIARY TO THE NUMERICAL CONTROL SYSTEM, PROVIDE FOR AUTOMATIC OPERATION OF FUNCTIONS NOT REQUIRING NUMERICAL CONTROL. D R A W I N G
Inventors
- 👤 Floyd Inda
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |