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:
May. 26, 1981
Filed:
Apr. 14, 1980
Raymond D Carter, Bryan, OH (US);
Allen L Clark, Pioneer, OH (US);
The Aro Corporation, Bryan, OH (US);
Abstract
A resettable overrun control valve includes a housing with a throughbore defining an inlet, an outlet and an intermediate valve seat. A valve disc is normally biased from the valve seat by a coil spring projecting the disc toward the inlet. An actuator stem connects to the valve disc and is responsive to a manually operable control rod projecting through the housing to engage the stem. Normal pneumatic pressure through the inlet permits air flow about the valve disc and through the outlet. If the pressure drop on the downstream side of the valve disc exceeds a predetermined limit, the valve disc is forced against the valve seat. This terminates air flow. Once the reason for the excessive air flow through the valve is corrected, the valve may be reset by actuating the manual rod against the stem. The biasing force on the valve disc is adjusted by means of a telescoping housing that cooperates with the valve body. The housing serves as an adjustable platform for the coil spring which biases the valve disc.