.~ Position of thrust member relative to chamber {4}
288
.~.~ Having varying area of chamber passageway for thrust member
DEFINITION
Classification: 188/288
(under subclass 284) Device wherein a thrust member moves within a variable-volume chamber through a corridor that surrounds the thrust member in a plane perpendicular to its direction of movement, and wherein the size of the corridor in that plane changes along the direction of movement of the thrust member.
(1) Note. In this subclass fluid moved by the piston flows between the periphery of the piston and the interior wall of the chamber. The area of interior wall provided for such fluid flow varies by reason of grooves in, or taper of, the wall, thus the degree of fluid flow is dependent upon the position of the piston along the wall.
SEE OR SEARCH THIS CLASS, SUBCLASS:
316, for a shock absorber in which fluid flows between the periphery of a piston and the interior wall of a chamber.
