Piston for hydraulic translating unit

Details Piston for hydraulic translating unit Piston for hydraulic translating unit

1975-07-07

1976-12-28

Cohen, Irwin C.

Expansible chamber devices

Piston

Nonmetallic portion

92256, F16J 100

Patent

active

039994686

ABSTRACT:
A piston, such as that used in an axial and/or radial piston hydraulic translating unit, comprising a hollow-skirt portion having inner surfaces defining a substantially conical cavity filled with a core of lightweight material, the material being retained in place by snap rings resiliently mounted into annular grooves formed on the inner surfaces of the skirt portion, which mechanically interlock the core material with the piston.

REFERENCES:
patent: 1167975 (1916-01-01), Burlingham
patent: 2846015 (1958-08-01), Pittman
patent: 2860609 (1958-11-01), Roth
patent: 2950132 (1960-08-01), Kocsuta
patent: 3080854 (1963-03-01), Wiggermann
patent: 3469494 (1969-09-01), Frailly
patent: 3633467 (1972-01-01), Watanabe et al.
patent: 3707113 (1972-12-01), Hein et al.
patent: 3741077 (1973-06-01), Hulsebus et al.
patent: 3861278 (1975-01-01), Forster

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