(under the class definition) Subject matter in which (1) means are provided for actuating one or more parts of an electric motor relative to and into impact or percussive contact with one or more other parts which are either parts of the motor structure or are structurally combined with the motor (i.e., not merely other parts which constitute a device or work piece to be operated on by the motor and to which the motor may be attached or relatively positioned temporarily); or (2) the motor is a shock or vibration producing type of motor the prime or essential function of which motor is to transmit mechanical shock or vibrations to a mechanism or device upon which the motor may be supported or to which the motor may be clamped or otherwise secured.
(1) Note. A motor system having electric motor which is limited to having any useful output member other than that for producing impact shock or vibration as defined in parts (1) and (2) above, is not classified herein, but is classified in one of the other appropriate subclasses and cross-referenced to this subclass for the impact, shock or vibration producing feature.
(2) Note. The shock or vibration producing motor may be a rotary electric motor in which the rotary element is decidedly unbalanced dynamically so that upon rotation it will produce pronounced reactive forces to cause the motor frame to transmit forces to the support or body with which it may be in contact and, hence, cause shock or vibration in said support or body. For example, mere reciprocating or oscillating motors which may or may not produce impact by the movable motor element, depending on the proximity of the motor having the movable element to the work or device to be
operated upon or to be actuated by the motor are not included herein but will be found in subclass 119.
SEE OR SEARCH THIS CLASS, SUBCLASS:
119, see Note 2 above.
SEE OR SEARCH CLASS 81, Tools,
463+, and see Notes thereto.
173, Tool Driving or Impacting,
117, for an impacting device having a hammer head driven by an electric motor.
