Rotary-rake haymaking machine with pivotal arms
Abstract
Abstract A HAYMAKING MACHINE (E.G. A RAKE OR TEDDER) HAS TWO ROTARY RAKES MOUNTED ON OPPOSITE ENDS OF A SUPPORT BEAM EXTENDING TRANSVERSE TO THE DIRECTION OF TRAVEL WITH A WHEEL PARALLEL TO THAT DIRECTION UNDER EACH RAKE. EACH BEAM END CARRIES AN ARM WITH A FURTHER RAKE PIVOTAL THROUGH 90* OR MORE FROM A WORK POSITION ALIGNED WITH THE BEAM TO A TRANSPORT POSITION EXTENDING ALONG BEHIND THE BEAM THERETO. EACH WHEEL OF EACH OUTER RAKE CAN BE ARRESTED TO LIE GENERALLY TRANSVERSE TO THE ARM BY A LOCK MECHANISM. WHEN THE ARM IS FREED AT THE PIVOT AND STARTS TO SWING TOWARD THE REAR, A FORCE-TRANSMITTING MEMBER ENGAGEABLE WITH THE BEAM IS AUTOMATICALLY ACTUATED AND FREES THE WHEEL LOCK MECHANISM THEREBY ALLOWING FOR FREE SWIVELING OF THE OUTER WHEEL.
Inventors
- 👤 Josef Purrer
- 👤 Martin Maier
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |