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:
Feb. 13, 1990
Filed:
Jun. 21, 1989
Applicant:
Inventor:
Marius R Junier, Houston, TX (US);
Assignee:
Triten Corporation, Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
220-3 ;
Abstract
There are disclosed two embodiments of a stuffing box for a movable stem of a valve, wherein each stuffing box includes first and second primary packing assemblies at its inner and outer ends, respectively, a third packing assembly intermediate the first and second packing assemblies and including axially spaced inner and outer packing sections between which sealant may be injected, as well as a bleed ring intermediate the first and second packing sections and surrounding the stem with small clearance, whereby purge fluid may be introduced into the small clearance for flow past the inner primary packing assembly in the event it fails.