.~ With gas, vapor, or flame contact means for work
DEFINITION
Classification: 156/497
(under subclass 349) Apparatus having means directing work treating material in a gaseous or vaporous state into direct association with the work.
(1) Note. Devices for merely holding the workpiece in ambient air are excluded from this subclass. For such subject matter search the appropriate work manipulating subclass below.
(2) Note. The devices of this subclass must directly contact the workpiece with the gas or vapor, rather than for example, applying pressure through a flexible diaphragm.
SEE OR SEARCH CLASS
118, Coating Apparatus,
47, for coating devices having means to contact the work with a flame and subclasses 715+ for coating devices having means contacting the base with a gaseous or vaporized coating material and see especially the search notes to subclasses 47 and 715+ for the locus of other patents relating to this subject matter.
