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:
Aug. 20, 1996
Filed:
Jan. 12, 1995
Applicant:
Inventors:
Y Christian Li, Greensboro, NC (US);
Edward S Poleshuk, Greensboro, NC (US);
James R McMordie, Greensboro, NC (US);
Assignee:
Gilbarco, Inc., Greensboro, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ;
U.S. Cl.
CPC ...
1374933 ; 13754319 ; 13754321 ;
Abstract
A check valve for a metering device having a negligible pressure drop thereacross includes a valve seat defining an inlet flow region, an open support frame projecting outwardly from the valve seat to define an outlet flow region having a predetermined flow area greater than the flow area of the inlet flow region and a valve member slidably mounted to the support frame and biased thereagainst for reciprocal movement between a flow blocking position and a flow sustaining position.