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. 07, 1993
Filed:
Jun. 08, 1992
Applicant:
Inventor:
Bobby J Corte, Houma, LA (US);
Assignee:
Cor-Val, Inc., Houma, LA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ;
U.S. Cl.
CPC ...
137315 ; 137312 ; 166 91 ; 285 92 ; 285924 ;
Abstract
An improved choke valve apparatus for use in controlling oil well flow for example includes an improved interlock system for warning of a pressurized condition within the valve prior to removal of the valve wing nut member. The safety bleeder plug assembly includes a plug body threadably attached to an opening in the choke body. A pair of spaced apart spring loaded washers interfaces the bleeder plug body and the choke body to several hundred pounds per square inch of pressure so that inadvertent removal of the plug body and body is prevented.