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Class 134 :: CLEANING AND LIQUID CONTACT WITH SOLIDS

Definition



(1) This is the generic class for:

(A) Cleaning, i.e., the separation or removal of adherent dirt, scale, tarnish, impurities or any other foreign or undesired matter (as distinguished from solid-material working to obtain desired shapes or new surfaces or removal of a constituent part of the base material of a solid) from solid materials or objects whether or not the resultant separated ingredients are recovered in whole or in part for subsequent use. This includes the pickling of metal. By materials or objects are meant any solid material or object, whether a machine or any other solid in either a naturally occurring or manufactured state and includes the living body.

(B) The contacting of solids with liquids for any purpose not provided for in other classes.

(2) This class has processes and apparatus for the purposes of section

(A) above, not elsewhere provided for, as pointed out in the appended notes, but not the resultant products. When the product is claimed, it is classified in the class appropriate thereto and cross-referenced here for the process or apparatus disclosed or claimed.

(3) Cleaning may be performed by, or may involve as a part thereof, contacting solids with liquids. The contacting of solids with liquids may be for purposes other than cleaning. Where the contacting of solids with liquids is for some purpose other than cleaning and some other class provides for processes or apparatus for such purpose, the patent is in general placed in such class even though a combination with cleaning steps is claimed, see the notes below for variations of this line with particular other classes.

(4) Steps or means for cleaning and/or for liquid contact with solids are frequently claimed in combination with steps or means for some additional purpose. Such processes and apparatus are in general classified in the class appropriate to the steps or means for the additional purpose. In other words, this class takes the subcombination for cleaning and/or liquid contact with solids, with steps or means to promote, facilitate, or perfect the cleaning or liquid contact. Most manufacturing classes involve cleaning of, or contacting the product being manufactured with, liquids.

(5) This class dominates over the compounds and compositions used for cleaning or liquid contact with solids. Therefore, where a process or apparatus for this class is claimed and also a compound or composition used therein, the patent is classifiable in this class with a cross-reference to the appropriate compound or composition class. For further particulars as to this line with particular classes, see Lines With Other Classes and Within This Class, Compounds and Compositions, below.

LINES WITH OTHER CLASSES

(1) PAPER, TEXTILES, FIBERS, HIDES, SKINS, FEATHERS, AND ANIMAL TISSUESThis class (134) does not have processes restricted to either cleaning or contacting with liquids the materials, paper, hides, skins, feathers, and animal tissues either, per se, or combined with other treatments. Class 134 has processes of cleaning of textiles and fibers not involving fluid treatment. Processes of mechanical cleaning (nonsolvent, nonreactive) of textiles and fibers by a gas blast or by suction is not considered a fluid treatment and has been placed in Class 134. Class 134 has, however, apparatus for cleaning and contacting with liquids the above named materials where not provided for in other classes. For subject matter excluded from Class 134, see References to Other classes, below.

(2) COATING AND IMPREGNATINGSome of the classes referenced in References to Other Classes, below, for this subject matter have processes and apparatus for coating and impregnating even though combined with either or both precedent cleaning of the work to be coated or subsequent cleaning of the coating. This class (134) has the cleaning subcombination.

(3) COMPOUNDS AND COMPOSITIONSCompounds and compositions and their manufactures (including purification) are in the classes appropriate to the compound or composition claimed, made or purified, or in the class appropriate to the manufacturing apparatus or process claimed. In general, where both a process for this class (134) and a compound or composition used in such process are claimed, classification is in this class (134) with a cross-reference to the appropriate compound or composition class.

(4) MATERIAL MIXING, SEPARATING, CLASSIFYING, OR ASSORTINGThis class (134) has cleaning and liquid contact combinations having the above subcombinations but does not take the above subject matter, per se, even though involving the cleaning of the apparatus used or involving the contacting of solids with liquids as part of the mixing, separating, classifying, or assorting operation. See References to Other Classes below.

(5) INDEX TO PRECEDING NOTESOther classes having subject matter, per se, within the definitions of this class, combinations of which such subject matter is a part, and subcombinations of such subject matter, considered worthy of special mention are found in References to Other Classes, below.

Subclasses List