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:
Jul. 30, 1996
Filed:
Nov. 16, 1994
Applicant:
Inventor:
Marius R Junier, Houston, TX (US);
Assignee:
Triten Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ; B65G / ; F16K / ;
U.S. Cl.
CPC ...
137240 ; 137375 ; 222148 ; 251214 ; 406132 ;
Abstract
Disclosed is a plug valve adapted to be placed in a chamber or vessel containing fluidized particles to control flow of the fluidized particles between the chamber or vessel and the open end of a conduit which has a contained purging system in a sealed space between the valve stem and guide tube effective to keep the fluidized particles out of the space. A purging medium is provided under pressure to the sealed space as a backup and only purges the space of fluidized particles which enter it due to leakage of one or both of the stuffing boxes. Other features of the plug valve are described.