Animal husbandry – Confining or housing – Stall
Reexamination Certificate
2000-07-27
2002-03-05
Jordan, Charles T. (Department: 3644)
Animal husbandry
Confining or housing
Stall
C119S740000, C119S750000
Reexamination Certificate
active
06352052
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to cattle stanchion apparatus, and more particularly to an improved cattle stanchion apparatus capable of actuation to quickly and easily release downed cattle. In Albers U.S. Pat. No. Re 32,728 there is shown cattle stanchion apparatus in which a plurality of fixed and release stanchions define a row of head openings for animals, the release stanchions tending to automatically pivot to open positions. Double latches at the upper extremities of the release stanchions are engageable by couplers carried by a rotatable and axially moveable positioner rod. An operating mechanism is actuable to axially move the positioner and engage the latches of the release stanchions to move them in unison, and an associated rotating mechanism is actuable to rotate the positioner and thereby move the couplers into and out of possible engagement of the latches. This arrangement gives the operator the capability of moving all of the release stanchions to closed positions to lock the animals in the feeding stalls, or allowing the animals individually to actuate the system to lock themselves in, or allowing the animals to enter and leave the stalls as they wish. The latches are manually manipulable to quickly release downed cattle from individual feeding stalls. Each release stanchion is provided with double latches and associated couplers which can be quickly and easily operated to allow movement of the individual release stanchions to enlarge the head opening and permit easy removal of a cow downed in the stall.
Albers U.S. Pat. No. 5,309,869 discloses a modified construction of the cattle stanchion apparatus of Re 32,728.
SUMMARY OF THE INVENTION
The present invention provides cattle stanchion apparatus having improvements over the cattle stanchion apparatus of U.S. Pat. Nos. Re 32,728 and 5,309,869. More particularly, the cattle stanchion apparatus of the present invention utilizes a smoother, quieter latching mechanism for the release stanchions in place of the latch mechanisms shown in U.S. Pat. Nos. Re 32,728 and 5,309,869. The cattle stanchion apparatus of the present invention also facilitates removal of a downed cow from the stanchion apparatus while providing maximum safety for a dairyman. The present apparatus additionally permits training of younger cows that are not yet familiar with the operation of self-locking release stanchions and attempt to enter the stanchion apparatus the wrong way, i.e. by means of the lower space between a release stanchion and a fixed stanchion. The present apparatus selectively permits a cow to enter the stanchion apparatus only through the upper space between a release stanchion and a fixed stanchion.
Other objects and advantages of the present invention will become apparent from consideration of the following detailed description taken in conjunction with the accompanying drawings.
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: RE32728 (1988-08-01), Albers, Sr.
patent: 4867105 (1989-09-01), Hatfield
patent: 4930452 (1990-06-01), DaSilveria
patent: 5309869 (1994-05-01), Albers, Jr.
Fulwider Patton Lee & Utecht
Lofdahl J
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