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:
Feb. 22, 2011
Filed:
Mar. 14, 2008
Applicant:
Richard C. Stange, Oceanside, CA (US);
Inventor:
Richard C. Stange, Oceanside, CA (US);
Assignee:
Hunter Industries, Inc., San Marco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 29/00 (2006.01); E03B 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
An irrigation device includes a chamber having a peripheral wall made of a material susceptible to damage from the expansion of water in an interior of the chamber during freezing. A freeze member is located in the chamber and is made of a compressible material. The freeze member is configured to allow unfrozen water to pass through the chamber and to accommodate expansion of the water during freezing to prevent cracking or other damage to the peripheral wall.