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:
Mar. 06, 1984
Filed:
Jul. 28, 1982
Applicant:
Inventor:
Ian G Murdoch, Longview, TX (US);
Assignee:
The Oilgear Company, Milwaukee, WI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
137515 ; 277-9 ; 2771 / ; 277203 ; 285347 ; 285351 ;
Abstract
Coupling joint seals, for oil well head high pressure control equipment particularly for the assemblies of riser tubes thereof on wireline equipment, have the coupling containing a seal constructed and arranged to permit the use of a rigid non-extrusion ring, preferably of yellow brass, as a retainer or back up ring as an element of the seal. The arrangement includes a groove cut into a cylindrical surface of a coupling member that enters an annular slot therein that shall contain the seal means to be disposed therein. The rigid non-extrusion ring is screwed or threaded through the groove and into the annular slot.