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. 14, 1992
Filed:
May. 14, 1991
Applicant:
Inventors:
Gerald V Rathay, Suffield, CT (US);
Leon Stoltze, Hartland, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
25112114 ; 137901 ; 251337 ;
Abstract
A center flow ball valve assembly includes a pre-loaded spring positioned in line with the valve fluid inlet port for seating the ball in the valve orifice, the spring configured in stepped diameter coil sctions including a smaller diameter ball mounting section for cradling the ball and a larger diameter pedestal section which straddles the inlet port, the spring, with actuation of the ball valve permitting fluid to pass with minimum pressure drop through an unobstructed circumferential path between the different diameter coil sections.