Two piece hydraulic piston assembly with swaged piston-sleeve jo

Details Two piece hydraulic piston assembly with swaged piston-sleeve jo Two piece hydraulic piston assembly with swaged piston-sleeve jo

1990-02-26

1991-05-14

Kwon, John T.

Expansible chamber devices

Resilient means interposed between working member and...

92113, 92130R, 92172, 92240, 92245, 403261, 403274, F16J 110, F16J 912, F01B 3100, F16B 900

Patent

active

050145991

ABSTRACT:
A piston and piston support rod assembly in which the piston is formed as a sheet metal stamping. A central sleeve is attached to the end wall of the stamped piston by a swaging operation performed on an annular section of the end wall. An undercut area of the sleeve defines a mandrel surface that effectively grips the end wall material deformed by the coining operation. A principal advantage of the new structure is a relatively low manufacturing cost.

REFERENCES:
patent: 3080890 (1963-03-01), Papa
patent: 3103991 (1963-09-01), Flinn
patent: 3182362 (1965-05-01), Dobrikin
patent: 3183795 (1965-05-01), Kirk
patent: 3557911 (1971-01-01), Ellard
patent: 3571903 (1971-03-01), Persson
patent: 4881453 (1989-11-01), Armstrong

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