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. 18, 2000
Filed:
Mar. 17, 1999
Applicant:
Inventor:
Ted J Makowan, Schaumburg, IL (US);
Assignee:
Val-Matic Valve and Manufacturing Corp., Elmhurst, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137527 ; 1375272 ; 251337 ;
Abstract
A resilient disc check valve with a spring return mechanism is provided. The spring return mechanism is contained entirely within the valve body. The spring return mechanism is in the form of a leaf spring or similar structure which engages a back side of the disc and does not require any attachment to the disc by way of fasteners or other mechanisms.