DefinitionGENERAL STATEMENT OF CLASS SUBJECT MATTER A. This is the generic class for a power transmission system wherein a power input pulley* is in driving engagement with a belt* for advancing the belt along an endless path of travel and wherein a power output pulley is engaged with the belt at a position along such endless path to be driven by the belt and supply power for driving a load; or for a component part or auxiliary device intended for use in such system and not provided for elsewhere. B. This is also the generic class for structure, per se, in the form of a pulley*, guide roll* or other belt*-contacting structure for driving, guiding, tensioning, or shifting the belt, or for such structure in combination with a nominally claimed belt. (1) Note. A nominal recitation of a load device in combination with and driven by the power transmission system defined in the Class Definition, paragraph A of the General Statement of Class Subject Matter, above, will not exclude a patent from being placed in this class. |
Lines with other classes and within this classA method or apparatus for manufacturing a device of this class is not found herein, but is found in an appropriate manufacturing class. See References to Other Classes, below. A belt*, per se, is found in numerous classes as will be exemplified in the search and line notes below. Unless a line note is specifically provided in the SEARCH CLASS notes below, a patent claiming a belt, per se, is properly classified in this or another class providing for such belt if the sole disclosure is for subject matter provided for in such class, or in Class 428 depending on the line established between such class and Class 428. If there is disclosure for multiple intended uses for the belt, one of which is for a power transmission system as defined in the above paragraph A of the General Statement of Class Subject Matter, then the patent is properly classified in this class (474) unless there is at least one claim specific to the intended use in another class, in which instance classification is in the other class. Class 198, Class 226, and Class 254 provide specifically for a device, per se, in the nature of a pulley*, guide roll*, or other device for advancing, guiding, or directing a cable or web of flexible or articulated material, which may be endless, along an intended path of travel. In Class 198, the intended use of such device is in connection with an endless conveyor. In Class 226, the intended use of such device is in connection with feeding of material of indefinite length to a station where an operation is to be performed on the material. In Class 254, the intended use of such device is in connection with a cable for applying a pushing or pulling force to an object to be moved. In each of these classes, line notes should be inspected as to the line between themselves or between other classes. However, the line between these other classes (198, 226, and 254) and this class (474) is as follows: (a) if the sole disclosure of the device, per se, mentioned above is for intended use in a system provided for in the Class Definition, paragraph A of the General Statement of Class Subject Matter of this class (474) or if the disclosure is unclear as to intended use but it is apparent that the device may be used in said system, classification is in this class (474); (b) if the sole disclosure of the device, per se, mentioned above is for intended use in connection with the kind of device identified above with regard to one of the other classes (198, 226, or 254), then classification is in such other classes; (c) if there is disclosure of multiple intended uses for the device, one of which is appropriate for the system provided for in the Class Definition, paragraph A of the General Statement of Class Subject Matter of this class (474), then classification is in this class unless there is at least one claim specific to the intended use in one of the other classes (198, 226, or 254), in which instance classification is in the other class. This class was formed from patents in Class 74, subclasses 216.5-258 (inclusive), and in Class 74, subclasses 611 and 722. Regarding class superiority as between this class (474) and Class 74, all subclasses appearing in the Class 74 schedule above subclass 640 are superior to the class. Furthermore, a combination of a device of this subclass with a Class 74 device as may be found in Class 74, subclasses 650, 655, 661, 664, 670, 718, 720, 721, 745+, or 190-216.3 (inclusive) is considered superior to this class. This class is superior to all other subclasses in Class 74 indented under subclass 640 and to all other subclasses coordinate with Class 74, subclass 640, but lower in the Class 74 schedule than subclass 640. Caveat. Other than the patents involved in the formation of this class as identified in above, no other subclasses in Class 74 or any other class were screened; and so, when appropriate other search areas in Class 74 and in the classes indentified in the Search Notes below should be given consideration. |
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