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US 4,059,073 AGranted
Head gate
OwnerThomas A. Roarkinventor
Life of this patent
Estimating the term…
Abstract
A multi-action head gate is disclosed which, by actuation of a single element, selectively opens a passageway or closes it about the neck of an animal for secure engagement therewith. The engagement apparatus consists primarily of a vertically movable ear block and a pair of opposing pivotable jaw locks, all three of which simultaneously move to engage or release the animal.
Claims10
A head gate comprising:
- a. an upright main frame having a pair of transversely spaced side members and a horizontal member affixed at its ends to said side members;
- b. a vertical slide member vertically slidably engaged with said horizontal member, said slide member having a first end below said horizontal member and a second end thereabove;
- c. an ear block affixed to, and depending from, said first end of said vertical slide member, said ear block including a curved surface for engaging the back of the neck of an animal;
- d. a pair of elongate jaw locks pivotally connected, respectively, to said side members such that the lower ends thereof are between said side members;
- e. a pair of pivot arms pivotally connected, respectively, to said elongate jaw locks, above the pivot point thereof with said side members, and said vertical slide member, above said horizontal member;
- and
- f. means for moving said vertical slide member in a vertical direction whereby said ear block and jaw locks may be selectively moved together to substantially close the opening therebetween or moved apart to increase the opening.
4 more elements
Dependencies are inferred from the claim text.