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:
Oct. 31, 1978
Filed:
Jun. 07, 1976
Applicant:
Inventor:
Bernard W Braukmann, Mosbach, DE;
Assignee:
Braukmann Armaturen AG, Rothrist, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137557 ; 7320 / ; 210;95 ;
Abstract
A differential pressure overflow valve has a housing with a differential pressure indicator therein consisting of a cylinder containing a piston moving against the force of a spring; the piston is spaced from said cylinder to provide an annular gap. The housing also has an inlet and an outlet pressure chamber; the inlet pressure chamber is connected by a passage to one end of the cylinder and the outlet chamber by another passage to the other end of the cylinder. To provide a choke effect the cross sectional area of the annular gap is substantially smaller than the cross sectional area of the connecting passages.