Inflatable packer with roughened mandrel

Details Inflatable packer with roughened mandrel Inflatable packer with roughened mandrel

1983-01-24

1989-10-03

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 1, 166187, 285328, 2853324, F16J 1546, E21B 33127, F16L 3316

Patent

active

048711799

ABSTRACT:
An inflatable packer including a tubular mandrel, a pair of collars secured to the mandrel, and an inflatable sleeve connected between the collars about the mandrel. The exterior surface of the mandrel underlying the sleeve is roughened to increase the coefficient of friction between the mandrel and the sleeve.

REFERENCES:
patent: Re30711 (1981-08-01), Suman
patent: 1955642 (1934-04-01), Laughlin
patent: 2147343 (1939-02-01), Hokanson
patent: 2196668 (1940-04-01), Ragan
patent: 2222014 (1940-11-01), Baker
patent: 3437142 (1969-04-01), Conover
patent: 3604732 (1971-09-01), Malone
patent: 3837947 (1974-09-01), Malone
patent: 3907034 (1975-09-01), Suman
patent: 3918522 (1975-11-01), Suman
patent: 3961667 (1976-06-01), Mitchell
patent: 4311314 (1982-01-01), Suman

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