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:
Apr. 19, 1977
Filed:
Sep. 10, 1975
Applicant:
Inventor:
James A Burns, Lake Elmo, MN (US);
Assignee:
Airco, Inc., Montvale, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; G05D / ;
U.S. Cl.
CPC ...
137113 ; 137102 ;
Abstract
An automatic switchover valve is described having a unique venting system whereby any areas which may cause a buildup in pressure during shuttling are normally vented to atmosphere. The shuttle is of a simple, easy to manufacture design having a central inwardly tapered portion which allows communication with internal parts of the valve to atmosphere. The valve also features sealing means which seal against moving surfaces without being subjected to rubbing on sharp surfaces or orifices, thus prolonging seal life.
Burns, James. (1977). Automatic switchover valve and system utilizing same (U.S. Patent No. 4018244). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4018244
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile