(under the class definition) Apparatus in combination with features other than working fluid conducting or admitting means, working chamber supporting or retaining means, working member sealing, guiding or movement facilitating means, or mechanical motion converting means articulated to a working member and not provided for above.
(1) Note. Fluid conducting or admitting means includes a conduit, groove, channel or port designed to conduct fluid to or from the working chamber.
(2) Note. Working chamber supporting or retaining means includes a means such as a casing, bedplate or framework for holding or maintaining a working chamber forming member of an expansible chamber device in a position for operation.
(3) Note. Working member sealing, guiding or movement facilitating means includes piston rings or seals, guiding structure on a cylinder end member for encircling and maintaining a piston portion to a predetermined path of motion and lubricating features, special cylinder and piston surface structure or configuration to facilitate the movement of the piston in the cylinder.
(4) Note. A mechanical motion converting means articulated to a working member includes a connecting rod or similar power transmitting element which is movably secured to the piston.
(5) Note. In this subclass for example are combinations with (a) a heating element within the working chamber to evaporate a working fluid which has condensed (b) a tool for radially adjusting a piston side wall portion, said tool being mounted on the cylinder head or end closure (c) a piston having a hook at one end thereof to retrieve or grapple parts which may become detached or broken from the piston.
SEE OR SEARCH THIS CLASS, SUBCLASS:
128, for a combined expansible chamber device and a tool designed to facilitate assembly or disassembly of some part of the expansible chamber device.
161, for a nominally claimed art device (e.g., bicycle, chair) which forms a support for the expansible chamber device, no more of the art device being claimed than that necessary to mount or support the expansible chamber device.
