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:
Aug. 12, 1986
Filed:
Jan. 07, 1985
Applicant:
Inventors:
John W Goldsmith, Humble, TX (US);
Paul B Rullman, Borger, TX (US);
Assignee:
J. M. Huber Corporation, Locust, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285 52 ; 285347 ; 285354 ;
Abstract
An improved insulating union is provided of the type designed to prevent electrolytic corrosion in flow lines. The tail sub is physically separated from both the threaded sub and nut by a plastic layer. An annular groove is conventionally provided in the threaded sub for an O-ring to seal between the plastic layer and the threaded sub. Another O-ring groove is provided in a tail sub for sealing between the tail sub and the plastic layer to prevent leakage of high pressure gas from the union. The O-ring is inserted in the tail sub groove, and the plastic insulating layer is thereafter molded over the end of the tail sub.