Stone ejection door mechanism for harvesting equipment

Details Stone ejection door mechanism for harvesting equipment Stone ejection door mechanism for harvesting equipment

1987-08-31

1988-09-06

Husar, Stephen F.

56 102, A01F 700

Patent

active

047685255

ABSTRACT:
A stone ejection door mechanism for harvesting equipment comprising a stone sensing mechanism which will sense the presence of stones being ingested into the combine. A trap door mechanism including front and rear doors which are opened when stones are detected in the entering crop. The front door is moved to the open position when the presence of stones is sensed, and this opening movement acts through a chain and sprocket to rapidly open the rear door. After the stones have been ejected, the front door is closed followed by the rear door.

REFERENCES:
patent: 3576188 (1971-04-01), Tanis
patent: 4275546 (1981-06-01), Bohman
patent: 4322933 (1982-04-01), Seymour
patent: 4335563 (1982-06-01), Rice et al.
patent: 4353199 (1982-10-01), Chow et al.

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