US PATENT SUBCLASS 228 / 18
COMBINED
Current as of: June, 1999
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DEFINITION
Classification: 228/18
(under the class definition) Device to which has been added a sub-combination or assembly which is recognized as the subject matter of some other class.
(1) Note. The subject matter of the specific subclasses herein following (19-56.5) are considered so basic to the operation characterizing this class that they are dealt with as manifestations of that operation, rather than as combinations. Thus, fusion-bonding devices with means to handle or cool work or product, or provided with gauge, indicator or stop, are considered to be so common in the art that they do not merit the special characterization of "combined".
(2) Note. See Lines With Other Classes and Within This Class, Relationship to Combination Classes, for a statement of the line between combinations of apparatus proper for this class (228), and combinations appropriate to other classes.
(3) Note. Many patents in this subclass are directed to apparatus for performing a metal fusion-bonding operation combined with apparatus for mechanically cleaning work or applicator. However, means for supplying an acid to the work is considered to be fluxing, even though a cleaning operation is also performed thereby. Patents claiming means for performing such an operation will be found in subclasses 33+.
SEE OR SEARCH CLASS
15, Brushing, Scrubbing, and General Cleaning, for a cleaning device, per se.
29, Metal Working, 33+, for the combination of metal fusion-bonding apparatus with apparatus for performing a subsequent manufacturing treatment other than fusion bonding; and see Lines With Other Classes and Within This Class, The Classes Including Post-Fusion Treatment, in this class (228).
72, Metal Deforming,
39+, for apparatus for cleaning plus deforming metallic work.
