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. 10, 1984
Filed:
Dec. 27, 1982
Henry O Tohill, Bossier City, LA (US);
W-K-M Wellhead Systems, Inc., Shreveport, LA (US);
Abstract
A sealing connection for the passage of a fluid control line through adjoining members. The connection comprises a metallic tubular sealing element (10) provided with tapered end portions, each end having internal frusto-conical surfaces (32, 33) and external frusto-conical surfaces (41,43) in coaxial alignment with the bore (31) through the element (10). The external frusto-conical surfaces (41, 43) provide metal-to-metal sealing with aligned frusto-conical seating surfaces (62, 54) in opposed pockets (51, 61) formed in aligned portions (28a, 29) of the control line at their respective openings at the adjoining surfaces of the adjoined member (13, 12). The tubular sealing element (10) is subjected to axial compression between the frusto-conical pocket seating surfaces (62, 54) when the adjoined members (13, 12) are bolted tightly together which results in deformation of its tapered end portions to provide metal-to-metal sealing with the adjoined members (13, 12) which is effective to seal against both internal and external fluid pressurization of the control line and without internally obstructing or restricting the control line. Secondary sealing is provided by elastomeric O-ring seals (36, 39) mounted in circumferential annular grooves formed in the exterior of the tubular sealing element (10).