Piston and cylinder assembly

Details Piston and cylinder assembly Piston and cylinder assembly

1987-10-23

1989-04-18

Garrett, Robert E.

Expansible chamber devices

Annular working member or annular linearly extending chamber...

277206A, 277212C, 192 91A, 192 85CA, 403265, F01B 3100

Patent

active

048216275

ABSTRACT:
A piston and cylinder assembly for the annular type in which the cylinder defines an annular housing chamber slidably receiving an annular piston. The inboard end of the annular piston is enlarged to define an enlarged annular inboard end edge and an annular seal is positively secured to the enlarged inboard end edge of the piston and sealingly engages the associated cylindrical surfaces of the housing member. The enlarged annular inboards end edge of the piston is convoluted to maximize the area of the bonding interface between the piston and the seal so as to preclude extrusion of the seal and twisting of the seal during operation of the piston and cylinder assembly.

REFERENCES:
patent: 2895773 (1959-07-01), McConnaughey
patent: 4585106 (1986-04-01), Shirley
patent: 4585107 (1986-04-01), Monstevens
patent: 4585108 (1986-04-01), Monstevens
patent: 4585109 (1986-04-01), Shirley et al.
patent: 4601374 (1986-07-01), Ladin
patent: 4624290 (1986-11-01), Compton et al.
patent: 4660694 (1987-04-01), Nix et al.
patent: 4664393 (1987-05-01), Hazebrook
patent: 4683810 (1987-08-01), Afimiwala
patent: 4684003 (1987-08-01), Monstevens
patent: 4687084 (1987-08-01), Monstevens et al.

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