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:
Jul. 01, 1997
Filed:
Apr. 17, 1996
Rand H Ackroyd, Methuen, MA (US);
Watts Investment Company, Wilmington, DE (US);
Abstract
A temperature sensitive safety valve assembly includes a housing for mounting at a faucet outlet and a safety valve element consisting of a rigid cap and an elastic bellows containing a body of temperature sensitive material. Below a predetermined temperature, the bellows has a first condition permitting flow of water towards the faucet outlet. Above the predetermined temperature, the bellows has a second condition restricting flow of water. The bellows also has a third condition, actuated by loss of at least a portion of the body of temperature sensitive material, in which a seal surface of the cap engages with an opposed seat surface of the housing to restrict flow of water towards the faucet outlet.