Tubular one-way closure for injecting a material into a hole

Details Tubular one-way closure for injecting a material into a hole Tubular one-way closure for injecting a material into a hole

1976-11-09

1979-03-27

Purser, Ernest R.

Wells

Packers or plugs

With expanding anchor

166139, E21B 2300

Patent

active

041460944

ABSTRACT:
A tubular one-way closure for injecting a material, particularly synthetic plastic foam material, into a hole has a throttle channel through which the material is to be injected, and a central tube rotatable about its axis and movable in its axial direction. The closure also comprises an expandable anchoring member actuated by said central tube so as to anchor said closure in said hole while being expanded, and an elastic sealing member also actuated by said central tube so as to seal said hole after anchoring of the same.

REFERENCES:
patent: 904202 (1908-11-01), Heeter
patent: 1136904 (1915-04-01), Stinson
patent: 2139983 (1938-12-01), Stone
patent: 2383453 (1945-08-01), Crickmer
patent: 2531791 (1950-11-01), Silvey
patent: 2825410 (1958-03-01), Brown
patent: 3256437 (1966-06-01), Muse
patent: 3695045 (1972-10-01), Williams
patent: 3908386 (1975-09-01), Williams
patent: 3986536 (1976-10-01), Janson

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