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:
Nov. 12, 2002
Filed:
Nov. 03, 2000
Applicant:
Inventor:
Christopher David Radcliffe, Horsforth, GB;
Assignee:
Hoerbiger Ventilwerke GmbH, Vienna, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 3/303 ;
U.S. Cl.
CPC ...
E21B 3/303 ;
Abstract
A sealing ring packing ( ) includes a cooled packing casing ( ) that can be placed inside a stuffing box borehole ( ), and holds at least one essentially annular slide ring ( ) pressed against the moved component ( ) to be sealed, whose outside periphery ( ) exhibits at least one heat transfer sleeve ( ) expandable until resting on the inside periphery of the stuffing box borehole ( ) when inserted, and which is otherwise not separately cooled. This makes it possible to avoid the disadvantages of a separate liquid cooling in this area without impermissible temperature rises.