Expansible chamber devices – Convertible – or changeable by assembly or disassembly
Patent
1987-03-26
1988-10-04
Garrett, Robert E.
Expansible chamber devices
Convertible, or changeable by assembly or disassembly
92980, 92128, F01B 2904
Patent
active
047748745
ABSTRACT:
A rolling diaphragm for attachment between a piston and a cylinder, comprises: an inner radial section of circular configuration attachable to the piston, an outer annular skirt attachable to the cylinder, and a rolling wall between said inner radial section and said outer annular skirt. The inner face of the juncture of the inner radial section with the rolling wall is formed with an annular bead receivable within an annular groove formed in the piston for securing the inner radial section of the rolling diaphragm thereto independently of other fastening means. In addition, the outer annular skirt is formed at an intermediate portion of its outer face with an annular groove receivable over the end of an annular wall of the cylinder for clamping the outer annular skirt between the annular wall and an end wall of the cylinder, also independently of other fastening means.
REFERENCES:
patent: 3103855 (1963-09-01), Hager et al.
patent: 3185041 (1965-05-01), Stein
patent: 4086036 (1978-04-01), Hagen et al.
patent: 4505188 (1985-03-01), Weydt et al.
patent: 4569378 (1986-02-01), Bergandy
Barish Benjamin J.
Denion Thomas E.
Garrett Robert E.
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