Prong forming and driving mechanism
Abstract
Abstract PRONG FORMING AND DRIVING MECHANISM FOR PARTICULAR USE IN A MACHINE FOR FORMING LOOP FASTENERS ON WIREBOUND CONTAINERS, HAVING A LOOP BAR WITH A HOOK LIKE EXTENSION AT ITS LOWER END, A FORMER BAR WITH FOR ENGAGING THE END PORTION OF A BINDING WIRE PROJECTING BEYOND THE HOOK-LIKE EXTENSION AND BENDING IT DOWNWARDLY TO FORM A PRONG WHICH IS SUPPORTED ON ITS INSIDE BY THE HOOK-LIKE EXTENSION AND ON THE OTHER THREE SIDES BY THE WALLS OF A GROOVE IN THE FORMER BAR, AND A DRIVER BAR WHICH DRIVES THE PRONG THROUGH THE FACE MATERIAL OF A BOX BLANK WHILE CAMMING THE HOOK-LIKE EXTENSION PROGRESSIVELY OUT OF THE WAY, WITH LATCHING MEANS FOR AUTOMATICALLY LATCHNG AND UNLATCHING THE FORMER BAR TO THE DRIVER BAR AT APPROPRIATE STAGES OF THE CYCLE, SO THAT THE ENTIRE MECHANISM CAN BE DRIVEN BY A SINGLE VERTICALLY RECIPROCABLE CROSSBAR IN A CONVENTIONAL LOOP FASTENER MACHINE.
Inventors
- 👤 Leroy M Varga
- 👤 Thomas L Voorhees
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |