.~ Piston type expansible chamber reciprocating valve actuator {3}
63.4
.~.~ Lost motion, abutment or resilient connection between actuator and valve
DEFINITION
Classification: 251/63.4
(under subclass 62) Subject matter in which working or movable member of the expansible chamber device is not rigidly secured to the movable control member but is capable of transmitting movement to such member through (1) direct engagement of separable engaging surfaces or (2) through a spring or other resilient means.
(1) Note. One of the separable engaging surfaces is carried on the cylinder, piston or piston rod of the expansible chamber device and the other is on the movable control member of the valve or actuating rod of the valve.
(2) Note. The spring or resilient means through which motion is transmitted is positioned between an element rigid with the movable working member of the expansible chamber device and an element rigid with the control member and is adapted to engage both.
SEE OR SEARCH CLASS
92, Expansible Chamber Devices,
84, for apparatus comprising a resilient means interposed between the working member of an expansible chamber device and a relatively movable power transmission element and subclass 129 for apparatus comprising an abutment connection between a working member and a power transmitting element.
