Cutter and shearing mechanism
Abstract
Abstract Cutting and shearing structure incorporating cutter blade structure which, upon pin release or failure, can be freed from shaft revolvement even though the shaft upon which it is mounted is still turning. This is preferably accomplished through a split blade construction mounted upon a hub which is keyed to a revolving shaft. The blade construction itself is connected by pin means, such as shear pins, to the hub. These shear pins are designed to break along their respective shear planes upon overloading the blade structure. Both cutter blade and cutter-bar structure includes replaceable and reversable, inter-cooperating cutting means. A multiple member, cutter bar - or stationary support structure - affords necessary rigidity as well as supplying direction of incoming materials to appropriate operative areas of the structure.
Inventors
- 👤 J Brewer
Bibliographic Details
Claims Analysis
Total Claims: 8References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |