Packing support for mounting a well casing packing

Details Packing support for mounting a well casing packing Packing support for mounting a well casing packing

1981-10-26

1983-02-08

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277124, 277166, 277188R, 166124, F16J 1506, E21B 3312

Patent

active

043725635

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.

REFERENCES:
patent: 1804619 (1931-05-01), Humason
patent: 2189697 (1940-02-01), Baker
patent: 3024845 (1962-03-01), Courad
patent: 3389918 (1968-06-01), Burns
patent: 3588130 (1971-06-01), Fowler et al.

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