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:
Dec. 11, 1979
Filed:
Nov. 23, 1977
Harold G Brakebill, Concord, TN (US);
Edwin M Dexter, Knoxville, TN (US);
Robertshaw Controls Company, Richmond, VA (US);
Abstract
A condition responsive valve construction for varying the output pressure of the valve construction in relation to a movable part of a condition responsive device that is moved in relation to the condition sensed thereby, the valve construction having a housing provided with an inlet to be interconnected to a fluid pressure source and an outlet separated from the inlet by a main valve unit and being adapted to be interconnected to vent by a vent valve unit. A biasing spring operatively interconnects the movable part of the condition responsive device to a movable vent valve seat of the vent valve unit to urge the same to an open condition relative to a movable vent valve member by a force that is changeable by the condition sensed by the condition responsive device. A sealing and biasing bellows construction is operatively interconnected to the vent valve seat to tend to urge the same to a closed condition thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile