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:
May. 17, 1994
Filed:
Mar. 19, 1993
Applicant:
Inventor:
Keith J Hollingworth, Telford, GB;
Assignee:
BTR Plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251309 ; 251184 ;
Abstract
A tapered plug valve comprising a tapered plug rotatably mounted within a bore in a valve body to intercept a passageway. Spacing means is provided to limit the amount of axial movement of the plug and biassing e.g. spring means is provided to apply an axial force to the plug.