Piston for a pneumatic cylinder

Details Piston for a pneumatic cylinder Piston for a pneumatic cylinder

1978-10-18

1981-01-13

Maslousky, Paul E.

Expansible chamber devices

With lubricating means

Piston has lubricant retaining or conducting means

92193, 92249, 277165, F01B 3110, F16J 106, F16J 900

Patent

active

042442800

ABSTRACT:
A piston for a pneumatic cylinder having a guide and sealing annular member extending around the circumference of the piston, and a resilient bearing member biassing the guide and sealing member in a direction for sealing engagement with the internal surface of the cylinder. The guide and sealing member has a plurality of axially consecutive, radially projecting sections for surface contact with the internal surface of the cylinder, each pair of adjacent sections defining a cavity therebetween. The material of the guide and sealing member between adjacent radially projecting sections of the guide and sealing member define a hinge-like connection therebetween.

REFERENCES:
patent: 343065 (1886-06-01), Purves
patent: 1867718 (1932-07-01), Towell
patent: 1868075 (1932-07-01), Reiland et al.
patent: 2749195 (1956-06-01), Kruger
patent: 2871072 (1959-01-01), Parks et al.
patent: 3583292 (1971-06-01), Garnier
patent: 3814445 (1974-06-01), Bitzon

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