Animal husbandry – Watering or liquid feed device – Drop-delivering
Patent
1994-08-23
1996-03-26
Swiatek, Robert P.
Animal husbandry
Watering or liquid feed device
Drop-delivering
251339, A01K 706
Patent
active
055011772
ABSTRACT:
An animal watering valve has a diaphragm and a domed valve stem head which provide improved control of the forces applied to the domed valve stem head and which interact to reduce the actuating forces necessary to open the valve by increasing the mechanical advantage of the valve stem/diaphragm combination. The diaphragm and valve stem also interact with each other and with an associated elastomeric ring to provide improved centering of the valve stem on the diaphragm and to permit flow rates through the valve to be adjusted without adversely affecting valve operation. An elastomeric cup shaped shield may also be employed and, if provided, imparts reduced resistance to valve stem deflection and inhibits accumulation of fluid in areas which may be contaminated.
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Edstrom, Sr. William E.
Grkavac George J.
Abbott Yvonne
Edstrom Industries, Inc.
Swiatek Robert P.
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