US PATENT SUBCLASS 335 / 59
.~ Retarded or delayed type

Current as of: June, 1999
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335 /   HD   ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
59.~ Retarded or delayed type {7}
60  DF  .~.~> Plural sets of contacts alternately, consecutively or selectively opened or closed
61  DF  .~.~> With pneumatic delay means (e.g., dashpot, etc.)
62  DF  .~.~> With hydraulic delay means
63  DF  .~.~> With magnetic or electromagnetically actuated delay means
64  DF  .~.~> With mechanical delay means {1}
66  DF  .~.~> Electrothermal delay means
67  DF  .~.~> Adjustable or regulatable

DEFINITION

Classification: 335/59

(under subclass 2) Subject matter wherein the device includes significant structure whereby the timing of the opening or closing of the switch contacts of the device takes place at an appreciable interval or intervals of time after an actuating force is applied to the contact actuating means or the timing is effected by varying the energizing current applied to the magnetic winding of the device.

(1) Note. For devices which automatically interrupt an electrical circuit upon the occurrence of an abnormal condition arising in the circuit to be controlled and having timing or delay means, see subclasses 6+ above.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28+, for automatic circuit interrupters with latch or trip means with timing means for reclosing or resetting.

39+, for automatic circuit interrupters with magnetic latch or trip control of the time delay type.

139, for step-by-step switches with timing or indexing means.

218, for magnets or electromagnets of the temperature responsive type with time delay means. 239+, for electromagnet with time delay armature movement control means.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

33+, for nonmagnetically actuated switches with time delay means.

219, Electric Heating,

492+, for automatic regulating or control systems for heating devices utilizing timing or cycling means.

307, Electrical Transmission or Interconnection Systems,

141+, for switch actuation means with time delay or retardation means.

315, Electric Lamp and Discharge Devices: Systems,

360, for time controlled electric lamp and discharge device systems.

318, Electricity: Motive Power Systems, 141, 283+, 484+, 700+, and 727+ for various motor control switching systems with time delay means.

320, Electricity: Battery or Capacitor Charging or Discharging,

155+, for a battery charging circuit with time control.

322, Electricity: Single Generator Systems,

18, for automatic control of generator or driving means having time delay in response.

337, Electricity: Electrothermally or Thermally Actuated Switches,

301+, for thermally actuated switches with time control means.

340, Communications: Electrical,

815.30, for visual signalling devices with means for self cancelling after a fixed time interval.

361, Electricity: Electrical Systems and Devices,

1+, for safety and protective systems with time delay means, and subclasses 160+ for electric circuits for relays and electromagnets with time delay.

388, Electricity: Motor Control Systems, art collection 921 for motor control systems including time delay means.