Anti-crease friction weld strapping tool
Abstract
Abstract A hand tool for joining thermoplastic strapping about an article has a strap tensioning wheel, a manually operated tension plate cooperating with the wheel, oscillating and fixed welding jaws, and an air motor for driving both the tension wheel and one of the jaws. A clutch is provided for disconnecting the motor drive from the tension wheel although the motor always remains connected to the oscillating jaws. A amnual release lever releases the tension plate from the tension wheel, and a weld lever is manually operated for closing the welding jaws and declutching the motor from the strap tensioning wheel, whereupon the motor oscillates the welding jaw to make the joint. A cam is mounted on the weld lever and positioned to engage and operate the release lever to retract the tension plate after the weld jaws have been closed on the strap. This elimanates crease failure of the strap between the weld jaws and the tensioning assembly during the friction weld oscillation.
Inventors
- 👤 C Gilmore
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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |