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. 08, 1983
Filed:
Oct. 26, 1981
Robert J Diehl, Wallis, TX (US);
William L Godare, Rohnert Park, CA (US);
Frederic D Wells, Shreveport, LA (US);
W-K-M Wellhead Systems, Inc., Shreveport, LA (US);
Abstract
A packing support assembly (10) adapted to be sleeved about a well casing ('C'), or the like, and secured thereto without the need for piercing the casing wall or welding thereto. The support assembly (10) comprises an anchor ring (11) which is sleeved about the casing ('C') and secured thereto by a first fastening means in the form of a plurality of circumferentially located fastening means such as radial bores (22) and set screws (31). The anchor ring (11) is provided with flexible fingers (61) having ridged surfaces (16) which are also adapted to rip the external wall of the casing ('C'). The flexible fingers (61) are wedged inwardly to grip the casing ('C') by means of a retainer ring (71) which is threaded onto the exterior of the anchor ring (11) and provided with an internal wedging surface (75) which is slidably engageable with cooperating wedging surfaces (52) on the exterior of the flexible fingers (61) of the anchor ring (11 ). The gripping force is adjustable as determined by the degree of turning of the set screws (31) and the amount of rotation and threaded connection of the retainer ring (71) on the anchor ring (11). The upper annular edge (81) of the retainer ring is configured to support and retain an annular packing, or the like, thereon.