(under the class definition) Apparatus including a base, bracket, standard or framework to which a cylinder or other working chamber forming means of an expansible chamber device is secured to be supported in operative position.
(1) Note. A mere cylindrical sleeve or casing claimed as a pump body, crankcasing, cylinder block or engine block, which receives a second sleeve therein claimed either as a cylinder or cylinder liner which forms the inner surface thereof for slidably receiving a piston, is not considered a support for this subclass and is classified as a cylinder detail in subclasses 169+.
(2) Note. This subclass will take those patents in which an expansible chamber device is supported on a nominally claimed art device such as a chair or bicycle. However, if the art device is claimed specifically, i.e., more is claimed than that necessary to support the expansible chamber device, classification is generally with art device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
54+, for a cylinder mounted for rotation incident to the reciprocation of a piston positioned therein.
77, for a ground embedded expansible chamber device.
117+, for a cylinder mounted on a support, said cylinder being mounted for movement relative to said support incident to the operation of the expansible chamber device. 146, for a plurality of cylinders secured to a support or frame to be immovable relative to each other when in an operative position. Note section IV of the class definition and the paragraph following the title in the schedule of this class.
169+, for a cylinder liner detachably secured in a tubular sleeve-like casing.
SEE OR SEARCH CLASS
123, Internal-Combustion Engines,
195, for a support or frame for an internal combustion engine.
180, Motor Vehicles,
55+, 63, 291+, and 312 as explained in the reference to each appearing in subclass 426 above.
248, Supports, appropriate subclasses for a support of general utility, and particularly
637+, for a machinery support. Class 92 takes the combination of a cylinder or working chamber forming means of an expansible chamber device and a support therefor where some specific structure of the cylinder or working chamber forming means other than means which are designed solely for the purpose of positioning or securing the cylinder or working chamber forming means to the support is claimed. For example, the mere nominal recitation of "a cylinder having a flange", "means for positioning the cylinder on a support", or "openings for the reception of bolts for securing the cylinder to a support", will not preclude classification in Class 248.
