The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 1996
Filed:
Aug. 23, 1994
William E Edstrom, Sr, Waterford, WI (US);
George J Grkavac, Milwaukee, WI (US);
Edstrom Industries, Inc., Waterford, WI (US);
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.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile