(under subclass 258) Method or apparatus comprising a step of, or means for, removing undesirable material from a drafting roll.
(2) Note. Subclasses 265 and 264 are restricted to clearing a top roll and clearing a bottom roll, respectively. Patents placed in this subclass 262 are directed to clearing method or means which, as claimed, are effective upon both a top and bottom roll.
(3) Note. Many of the patents placed in subclass 263 are directed to pneumatic clearing of both top and bottom rolls; hence a search for clearing both rolls should include that subclass.
SEE OR SEARCH CLASS
15, Brushing, Scrubbing, and General Cleaning,
256.5+, for cleaning means in physical contact with a moving surface. Class 15 takes no more structure of the roller(s) or arrangement thereof, claimed than that which constitutes the cleaned area or that necessary to accommodate the cleaning means. Class 15 takes claimed roller or pair(s) of
rollers as the object cleaned. Plural rollers or pairs of rollers with only enough of the roller arrangement claimed to accommodate or necessitate the cleaning means. Claims to plural cleaning means will be placed in Class 15, subclass 105. 198, Conveyors: Power-Driven,
494+, for a conveyor having installed as part of its structure a means for cleaning a component of the conveyor.
