Elastomeric seal with reinforcing ring

Details Elastomeric seal with reinforcing ring Elastomeric seal with reinforcing ring

1993-04-09

1994-09-27

Britts, Ramon S.

Wells

Expansible anchor or casing

Liner hanger

277163, E21B 2302

Patent

active

053500172

ABSTRACT:
A seal for an oil well apparatus has reinforcing rings embedded within the seal. The seal is elastomeric. The apparatus has an energizing device that deforms the seal to cause it to move radially outward to a set condition. The reinforcing ring does not expand during this radial movement. The reinforcing ring is preferably a cable and is located near the inner diameter of the seal. The seal may also have anti-extrusion rings at the outside corners, which are flexible coil springs. Each anti-extrusion ring is a coil spring with a core of material that has a hardness greater than the hardness of the body of the seal.

REFERENCES:
patent: 595811 (1897-12-01), Katzenstein
patent: 701730 (1902-06-01), Irons
patent: 909983 (1909-01-01), Bomcke
patent: 2957717 (1960-10-01), Bram
patent: 3094337 (1963-06-01), Pippert et al.
patent: 4219204 (1980-02-01), Pippert
patent: 4298067 (1981-11-01), Lawson
patent: 4428590 (1984-01-01), Pippert et al.
patent: 5163514 (1992-11-01), Jennings

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