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:
Sep. 11, 1984
Filed:
May. 06, 1982
Applicant:
Inventor:
Bruce R Johnson, Petaluma, CA (US);
Assignee:
Jandy Industries, Inc., San Rafael, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ;
U.S. Cl.
CPC ...
137270 ; 137556 ; 13762541 ; 13762546 ; 251286 ;
Abstract
A three-way rotary plug valve comprising upper and lower radial arms carried on top and bottom shafts and supporting an integral arcuate closure member between them. The upper shaft extends through a bearing in the top closure and carries a sector position indicator having an arcuate outer surface which overlies and is coextensive with the arcuate closure sealing surface so that the precise position of the closure is apparent at all times. Marks on the top cover depict the locations of the flow passages and cooperating stop means on the cover and the position indicator prevent complete blockage of the inlet passageway from the pump.