US PATENT SUBCLASS 318 / 445
AUTOMATIC AND/OR WITH TIME-DELAY MEANS (E.G., AUTOMATIC STARTING AND/OR STOPPING)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

445AUTOMATIC AND/OR WITH TIME-DELAY MEANS (E.G., AUTOMATIC STARTING AND/OR STOPPING) {20}
446  DF  .~> With nonautomatic control means (e.g., manual)
447  DF  .~> Nonresponsive or less responsive for limited periods
448  DF  .~> Anti-hunting
449  DF  .~> With respect to a fixed standard, master or reference device {2}
452  DF  .~> Plural, diverse conditions or with time-delay means {1}
456  DF  .~> Rate-of-change of a condition {2}
459  DF  .~> Terminal voltage or counter-electromotive force of controlled motor
460  DF  .~> Sound, supersonic vibration or mechanical vibration
461  DF  .~> Speed or rate-of-movement {3}
466  DF  .~> Movement, position, or limit-of-travel {3}
471  DF  .~> Responsive to thermal conditions {2}
474  DF  .~> Motor load, armature or primary or secondary circuit current {2}
478  DF  .~> Electrical conditions in circuit other than controlled motor circuit {1}
480  DF  .~> Radiant energy
481  DF  .~> Pressure in a fluid or granular material
482  DF  .~> Level of fluid or granular material
483  DF  .~> Moisture content or wetness
484  DF  .~> Time or with time-delay means {3}
488  DF  .~> Responsive to stress in body or material
489  DF  .~> Responsive to direction, inclination or angular position of bodies

DEFINITION

Classification: 318/445

(under the class definition) Subject matter in which (1) means are provided for sensing the existence of or the magnitude of a predetermined condition (e.g., temperature, time, speed of a device, etc.) combined with means for controlling the motor and in which the sensing means initiates the operation of the motor control means upon the occurrence of the predetermined condition; and/or (2) in which time-delay or retarding means are provided for retarding or delaying the operation of the motor control means whether the operation is initiated manually or automatically.

(1) Note. This subclass and the subclasses indented hereinunder will be the places where automatic starting and/or stopping, per se, of electric motors will be classified. See the class definition for automatic starting and/or stopping of electric motors.

SEE OR SEARCH THIS CLASS, SUBCLASS:

18, for electric motor follow-up systems in which a motor starts (including automatic starting in response to a change in a condition) and automatically stops when motor moves a distance proportional to the degree of movement of a controller or to the degree of change of a condition.

69, for speed difference detectors in plural motor systems for automatically controlling the relative speeds of the motors in response to a difference in speed between the motors.

77, for motor systems having devices responsive to speed of one motor which controls speed of another electric motor. 120, and 127, for motor systems having means for automatically controlling a reciprocating or oscillating motor.

141, for generator supplied motor systems having means for automatically controlling the generator.

162, for motor systems having means for automatically controlling an electric motor by means of templates, perforated sheets and other predetermined schedule means.

174, and the subclasses specified in the Notes to the definition of those subclasses for automatic control of synchronous motors.

221, for induction motor systems having automatic control and/or time delay means for the control of an impedance type converter or dephasing means for controlling the armature or primary circuit of the motor.

283, and the subclasses specified in the Notes to the definition of those subclasses for miscellaneous motor systems having automatic control of the reversing of electric motors.

364, for miscellaneous motor systems having automatic controls of the braking of electric motors.

432, for miscellaneous motor systems having automatic means for maintaining constant load or constant current in electric motors.

700, for induction motor systems having automatic control and/or time delay means for the control of a primary circuit impedance of the motor.

822, for induction motor systems having automatic control of an impedance in the secondary circuit of the motor.

SEE OR SEARCH CLASS 73, Measuring and Testing, see (4) Note of class definition and the search notes thereto, for condition responsive systems, per se.

334, Tuners,

9, for remotely controlled variable tuners having an electromagnetic operator.