.~ Position of thrust member relative to chamber {4}
285
.~.~ Having a fluid flow passage adjusted manually (e.g., threaded plug, threaded rod, gearing)
DEFINITION
Classification: 188/285
Having a fluid flow passage adjusted manually e.g., threaded plug, threaded rod, gearing:
(under subclass 284) Piston movement varies resistance in which the degree to which the restraining effort varies is controlled by a hand or hand tool moving a short slender dowel with a projecting helical rib, a toothed plate, etc.
(1) Note. In this subclass, passage of fluid is permitted in an amount regulated by, and responsive to, the position of a piston relative to the cylinder in which it moves, and a valve is regulated by a user of the device to additionally permit or restrict the amount of fluid passed.
(2) Note. Included in this subclass are needle valves.
