Lines with other classes and within this class
GENERAL PLACEMENT OF PATENTS BASED ON A LINE APPLICABLE TO AN ART GROUP
Impellers* combined with structure or art devices are found in many classes wherein the impeller function is incidental or ancillary to the function of the combination. In those instances where an impeller relates to combinations in a similar manner in more than one class, a single line has been established to determine the placement of art.
No attempt has been made to review the classification of all patents found in classes which may involve an impeller as an element of the class subject matter. Thus, it is to be noted that although the original classification of a patent may not be consistent with a line set out below, currently issuing patents will be classified on the basis of the stated lines and the various patents currently classified inconsistent therewith are to be transferred when noted.
Vehicle Propulsion - This class provides for the combination of a vehicular device and an impeller* not otherwise classified wherein the impeller is arranged to propel the device and no more structure of the device is claimed than is necessary to mount the impeller inclusive of any impeller motor or drive means. Any additional recitation of vehicle structure or any modification of the vehicular device will require classification in the proper vehicle class.
(1) Note. The structure of the vehicle is considered to be significantly claimed in any instance wherein the impeller, its power plant, motor or drive mechanism is mounted or located (1) in a specific relation with respect to the vehicular device as a unit (e.g., perpendicular to longitudinal axis) or (2) on or in a relationship to a specific vehicle part (e.g.,wing or keel). (2) Note. Merely locating the impeller or drive means by broad reference to the vehicular device is not sufficient to exclude the patent from classification in this class (e.g., attached at side, front, rear, bow, stern, top, bottom, right, left, within or without the vehicle or at the water line). However, additional relationships will be sufficient for classification in the proper vehicle class (e.g., one impeller on each side or an impeller drive mounted within the vehicle rearwardly of the center of gravity). (3) Note. Terms such as deck, cabin, wing, fender, keel and gunwale are considered to be specific vehicle parts, per se, while fore, aft, bow, stern, hull or fuselage are not, of themselves, so considered.