Cast, substantially hollow, piston body

Details Cast, substantially hollow, piston body Cast, substantially hollow, piston body

1997-12-05

1999-03-09

Ryznic, John E.

Expansible chamber devices

Piston

Plural separable parts

92172, F16J 100

Patent

active

058786520

ABSTRACT:
In the embodiment shown, the body is formed of cast aluminum, and is devoid of clean-out holes in the upper and bottom ends thereof. Instead, the clean-out holes are formed in the outer, annular wall, through an annular recess formed in the outer wall, To close off the clean-out holes, a steel band is nested in the recess, in circumscription of the body. Further, the steel band has grooves formed therein in which to accommodate piston rings.

REFERENCES:
patent: 680465 (1901-08-01), Reynolds
patent: 1326692 (1919-12-01), Rogatchoff
patent: 1811737 (1931-06-01), Van Bezel
patent: 1860141 (1932-05-01), Ducommun
patent: 2478179 (1949-08-01), Brockmeyer
patent: 3149543 (1964-09-01), Naab

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