Double-release bar for a cow stanchion apparatus

Details Double-release bar for a cow stanchion apparatus Double-release bar for a cow stanchion apparatus

2008-04-08

2008-04-08

Nguyen, Son T. (Department: 3643)

Animal husbandry

Animal controlling or handling

Stanchion

C119S739000

Reexamination Certificate

active

11010967

ABSTRACT:
Cow stanchion apparatus having a fixed support structure that carries a plurality of pairs of like double release stanchion bars which simultaneously swing towards and away from one another to control movement of cattle relative to such apparatus. The stanchion release bars are disposed in the path of vertically movable flaps which lock and unlock the stanchion release bars for relative swinging movement. The flaps are operatively connected to a positioner rod that is manipulated by a dairyman.

REFERENCES:
patent: 4037566 (1977-07-01), Albers
patent: 4051813 (1977-10-01), Albers
patent: 4185592 (1980-01-01), Albers, Sr.
patent: 4476815 (1984-10-01), Albers, Sr.
patent: 4495897 (1985-01-01), Albers, Sr.
patent: 4867105 (1989-09-01), Hatfield
patent: 4930452 (1990-06-01), DaSilveira
patent: 5309869 (1994-05-01), Albers, Jr.
patent: 5975027 (1999-11-01), DaSilveira
patent: 03611868 (1986-10-01), None

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