Swab cup having an internal reinforcing member

Details Swab cup having an internal reinforcing member Swab cup having an internal reinforcing member

1980-02-19

1982-03-02

Cohen, Irwin C.

Expansible chamber devices

Piston

Side wall portion includes peripheral axially extending...

29460, 166202, 417555A, 264274, 264275, B29F 110, F16J 908, F16J 1532

Patent

active

043174078

ABSTRACT:
A well swab cup has an annular bushing for supporting a plurality of longitudinally extending wire reinforcing members within an elastomeric cup-like body. The reinforcing members are supported by a base cup around the lower portion of the bushing and extending upward within the body. An internal elongated hollow reinforcing member extends upward from the base cup within the pattern of the wire reinforcing members and within the elastomeric, cup-like body.

REFERENCES:
patent: 2305282 (1942-12-01), Taylor, Jr. et al.
patent: 2711939 (1955-06-01), Losey
patent: 3724337 (1973-04-01), Richardson
patent: 4099451 (1978-07-01), Blackwell
patent: 4106182 (1978-08-01), Blackwell

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