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:
Sep. 22, 1992
Filed:
Nov. 20, 1991
Applicant:
Inventors:
Jacob Gil, Kiron, IL;
Zvi Rubenstein, Timrat, IL;
Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01G / ;
U.S. Cl.
CPC ...
137 783 ; 137529 ; 239 63 ;
Abstract
A moisture-responsive valve includes a water-swellable body within a housing adjacent a moisture-permeable wall thereof for controlling the movements of a valve member with respect to a valve seat in response to the moisture passing through the moisture-permeable wall. The valve member is floatingly mounted between a first spring interposed between the valve member and the housing and urging the valve member away from the valve seat, and a second spring interposed between the valve member and the water-swellable body and urging the valve member towards the valve seat.