Apparatus under the subclass definition in which, in combination with the apparatus for drying and/or contacting solids with gases or vapors, there is apparatus for other purposes and not provided for above.
(1) Note. The combined features are in addition to the apparatus for feeding, discharging, agitating or conveying the solids, heating, causing or directing gas or vapor flow for contact with the material undergoing treatment.
(2) Note. For example, this subclass contains transportation means for the apparatus, power take-offs, means to protect persons from burning, as in hair driers, head rests, etc.
(3) Note. For devices operable to relieve pressure, including safety devices, see this class, subclass 558, and for means to inject steam or water, including fire extinguishers, see subclass 83.
SEE OR SEARCH THIS CLASS, SUBCLASS:
91, and 111, for drum driers including a belt or felt and means to dry the belt or felt, and subclasses 71 and 95 for means to dry by contact with solid matter plus means to dry
the solid matter.
427, for drying processes combined with a process of some other kind.
SEE OR SEARCH CLASS 100, Presses,
102, for presses not elsewhere provided for and combined with other features.
