Expansion chamber devices

Details Expansion chamber devices Expansion chamber devices

1984-06-07

1985-12-10

Garrett, Robert E.

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

92 98R, F16J 300

Patent

active

045571821

ABSTRACT:
An expansion device for converting changes in fluid pressure to displacement of a moving machine part or converting displacement of a moving part to changes in fluid pressure, the device featuring a first flexible expansion chamber wall at least partially defining a first expansion chamber region, a first rigid member having a convex surface supporting the chamber wall, a second rigid member having a concave surface facing the convex surface and movably mounted relative to the first rigid member to cause, when the first and second rigid members move together, the wall to fold over so that a portion of the wall's inner surface changes from an expanded concave shape to a convex shape adjacent to the first member, and a displacement connector attached to one of the first and second rigid members for connection to a moving machine part.

REFERENCES:
patent: 1944575 (1934-01-01), Rockwell
patent: 2452176 (1948-10-01), Bent
patent: 3051143 (1962-08-01), Nee
patent: 3137214 (1964-06-01), Feld et al.
patent: 3379411 (1968-04-01), Vanderjagt
patent: 3495502 (1970-02-01), Buosso
patent: 3784255 (1974-01-01), Smock
patent: 4292887 (1981-10-01), Ohta et al.

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