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. 24, 2009
Filed:
Aug. 08, 2006
Applicants:
John Derek Guest, Bray, GB;
Timothy Stephen Guest, Bray, GB;
Inventors:
John Derek Guest, Bray, GB;
Timothy Stephen Guest, Bray, GB;
Assignee:
John Guest International Limited, West Drayton, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01G 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A liquid flow control device includes an annular housing having an inlet for liquid in one periphery of the housing and an outlet for liquid in the other periphery. An annular block of water swellable material is located in the housing. A layer of sealing material encircles the annular block on the side thereof adjacent the inlet to close the inlet when the block is swollen through contact with the liquid.