Piston for a metering device and a method of producing same

Details Piston for a metering device and a method of producing same Piston for a metering device and a method of producing same

1978-02-06

1982-02-16

Cohen, Irwin C.

Expansible chamber devices

Cylinder detail

Nonmetallic piston contacting portion

92248, 92249, 222386, F01B 2908, F16J 102

Patent

active

043154549

ABSTRACT:
A piston for a metering device with a glass cylinder which comprises a cylindrical core of glass, ceramic or metal and a casing of poly(tetrafluoroethylene) reinforced with 10 to 60 weight percent glass fibers.

REFERENCES:
patent: 730557 (1903-06-01), McElroy
patent: 1133778 (1915-03-01), Wrightson, Jr.
patent: 2607342 (1952-08-01), Abel
patent: 3040712 (1962-06-01), Harrah
patent: 3303757 (1967-02-01), Ward
patent: 3940027 (1976-02-01), Marterer
patent: 3995868 (1976-12-01), Smith
"Oil-Free Reciprocating Compressors with PTFE Rings", Braun, Engineers' Digest, Aug., 1970, vol. 31, pp. 45, 47, 49, 50. _

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