US PATENT SUBCLASS 92 / 259-- .~.~ Side wall portion and relatively movable piston part having abutting inclined surfaces

US PATENT SUBCLASS 92 / 259
.~.~ Side wall portion and relatively movable piston part having abutting inclined surfaces

Current as of: June, 1999
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92 /	HD	EXPANSIBLE CHAMBER DEVICES

172	DF	PISTON {19}
255	DF	.~ Plural separable parts {3}
259		.~.~ Side wall portion and relatively movable piston part having abutting inclined surfaces

DEFINITION

Classification: 92/259

(under subclass 255) Apparatus in which the piston includes a side wall portion which abuts and is movable relative to another part, the abutting surfaces of said side wall portion and the other part being bevelled.

SEE OR SEARCH THIS CLASS, SUBCLASS:

207, and the subclasses there noted for a radially adjustable side wall portion, in which the adjustment is effected by relative movement between the side wall portion and a piston part in which said portion and part have abutting bevelled surfaces.