(under subclass 343) Apparatus in which the fluent material device is completely or partially surrounded by a layer of heat exchange or non conducting material to promote or prevent heat radiation or absorption, or by a protective cover or layer which may be either outside the fluid confining member or inside it, being in fact a liner in the latter case, the layer or cover being more or less similar in shape or proportions to the enclosed device.
(1) Note. This subclass includes fluent material devices enclosed in a casing to confine air or a vacuum as a heat insulating material means for the fluent material device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
264, for plural tanks having outlets which provide for flow other than from one tank to another, one of which tanks may be a cooling or insulating jacket for another, but which must
have a claimed outlet or inlet for fluent material.
334+, for heat exchange means involving jackets and casings, especially subclass 336 for flues extending through a casing for heating the contents and subclass 340 for jacket-type heat exchangers with means to cause or direct flow in the fluid heat exchange material.
SEE OR SEARCH CLASS 150, Purses, Wallets, and Protective Covers,
156, for a flaccid protective cover for a faucet.
220, Receptacles, appropriate subclasses, especially
560.12+, 592.01+, and 903 for a container having an insulated wall or jacket and 495.01+, 23.9, 23.91, and 908.1+ for a container having a lining or jacket.
222, Dispensing,
131, for dispensers having a spaced, nondispensing jacket and subclass 183 for other jacketed dispensers.
229, Envelopes, Wrappers, and Paperboard Boxes,
117.27+, and 164.2 for a paperboard box having a lining and 103.11 for a thermally insulated paperboard box.
