Expansible chamber devices – Piston – Side wall portion includes peripheral axially extending...
Patent
1986-11-26
1988-09-20
Garrett, Robert E.
Expansible chamber devices
Piston
Side wall portion includes peripheral axially extending...
92240, F16J 900
Patent
active
047716754
ABSTRACT:
A swabbing apparatus has a plurality of swab cups molded on a single core, with at least two swab cups having a different fluid load carrying capacity, so that the swabbing apparatus will have a relatively broad fluid load carrying capacity. Each swab cup has one or more lips with the fluid load carrying capacity of a swab cup being determined primarily by lip thickness.
REFERENCES:
patent: 2674201 (1951-01-01), Talbott
patent: 2975722 (1967-03-01), Webber
patent: 3209660 (1965-10-01), Taylor
patent: 3266385 (1966-08-01), Scaramucci
patent: 3352212 (1967-11-01), Read
patent: 3487753 (1970-01-01), Read et al.
Grauer James E.
McLaughlin Douglas E.
Denion Thomas
Fails James C.
Garrett Robert E.
Mantooth Geoffrey A.
Petro Rubber Hi-Tec, Inc.
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