This class is restricted to the structure of electric current switching devices or relays of general application for closing or opening electrical circuits which devices are magnetically operated or to magnet structure, per se, either electromagnets or permanent magnets, adapted for use as a source of magnetic flux for performing external work.
The devices classified in this class are for the most part of the electromagnetic type utilizing magnetic cores and armatures. However, included also are devices of the electrodynamic type wherein mutually coupled conductors are caused to move relative to each other by the interaction of the magnetic fields produced by the flow of electric currents in the conductors.
Combinations of magnetically actuated circuit makers and breakers or work magnets and electromagnets with electrical connector plugs, sockets or other special type housings or casings are in this class.
Electrical systems or circuits which include the magnetically controlled switches or relays or work magnet and electromagnet structures comprising the subject matter of this class, are excluded from this class. These systems or circuits are classified in the various electrical or art classes depending upon the type of electrical system or apparatus controlled.
This class also includes subcombinations of magnetically actuated switches and relays classified in this class and which are either claimed as used in a magnetically actuated switch or relay or which are by disclosure peculiar to such use.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS
29, Metal Working,
602.1+, for methods of manufacturing transformers and inductances, and residual methods of manufacturing magnets and electromagnets which do not fall elsewhere, and see the extensive notes to subclass 602.1 for the lines between Class 29 and other classes. 140, Wireworking,
71+, for wireworking apparatus, some of which can be used to
manufacture electromagnets.
148, Metal Treatment,
100, 122 for processes of improving the magnetic properties of material having at least one component which is a free metal or alloy, other than by mere magnetization, and subclasses 31.55 and 31.57 for stock resulting from such processes; subclass 100, notes, for lines between Class 148 and other classes.
174, Electricity: Conductors and Insulators, for miscellaneous conductors and insulator structure, some of which is applicable in the electromagnet.
178, Telegraphy, appropriate subclasses for magnets and electromagnets utilized in telegraph communication systems.
198, Conveyors: Power-Driven,
381, 439 and 619 for magnetic type conveyors.
204, Chemistry: Electrical and Wave Energy,
155+, for processes for producing chemical changes by the use of magnetic devices and subclass 193 for corresponding apparatus.
210, Liquid Purification or Separation, 222+, for such subject matter having magnetic means to effect the purification or separation.
219, Electric Heating,
600+, for inductive heating, subclasses 678+ for microwave heating, and subclasses 764+ for capacitive dielectric heating.
221, Article Dispensing, appropriate subclasses and see especially
212, for magnetic article holding discharge assistants and the controls therefor.
234, Selective Cutting (e.g., Punching), appropriate subclasses, and particularly
59+, for a pattern-controlled selective cutting machine wherein the pattern senser may involve electrical circuit-controllers.
242, Winding, Tensioning, or Guiding,
430+, for winding of motor cores, inductances, and resistances.
246, Railway Switches and Signals, appropriate subclasses for electric railway signaling systems utilizing magnets and electromagnets.
250, Radiant Energy, 281+, for ionic separation or analysis methods and apparatus which use magnets or electromagnets, subclasses 396+ for electron or ion beam deflection or focusing systems utilizing magnets or electromagnets.
252, Compositions,
62.51+, for processes of making magnetic compositions and the resulting product when it is claimed as stock or bulk material, and subclasses 500+ for electrically conductive compositions and devices defined solely in terms of the composition of which they are composed. Included are contacts and switches defined solely in terms of their composition or stock.
292, Closure Fasteners,
251.5, for magnetic closure fasteners.
294, Handling: Hand and Hoist-Line Implements,
65.5, and 88 for magnetic lifting and grappling devices.
307, Electrical Transmission or Interconnection Systems, particularly
38, 55+, 96+, 100, 326+ for switching systems and subclass 101 for the control or removal of residual or remnant magnetism.
310, Electrical Generator or Motor Structure,
10+, for electric motor and generator structure utilizing magnets or electromagnets.
313, Electric Lamp and Discharge Devices, is the generic class for the structure of space discharge devices; 153+, for space discharge devices and lamps utilizing magnets or electromagnets; subclasses 146+ for Class 313 for discharge devices which are provided with a movable electrode. Some discharge devices are closely analogous in structure to some types of circuit makers and breakers. See Class 313, class definition, Lines With Other Classes and Within This Class, "Distinction Between Discharge Devices and Electric Switches," for the distinction between a space discharge device and a circuit maker and breaker.
314, Electric Lamp and Discharge Devices: Consumable Electrodes, appropriate subclasses for arc lamps having magnets and electromagnets for controlling the feed of arc
electrodes. Note particularly
113+,.
315, Electric Lamp and Discharge Devices: Systems, appropriate subclasses for electric lamp and space discharge device systems having electromagnets and magnets.
318, Electricity: Motive Power Systems, appropriate subclasses for electric motor control systems utilizing magnets, electromagnets or relays, particularly
789+, for induction motor systems operating from a single phase source with start winding removal under the control of an electromagnetic switch; and subclasses 821+ for induction motor systems having the impedance of the secondary circuit under the control of an electromagnetic switch.
320, Electricity: Battery or Capacitor Charging or Discharging, appropriate subclasses for battery and condenser charging and discharging systems utilizing magnets and electromagnets or relays.
322, Electricity: Single Generator Systems, appropriate subclasses for generator systems utilizing magnets, electromagnets or relays.
323, Electricity: Power Supply or Regulation Systems, appropriate subclasses for voltage control or phase control systems utilizing magnets, electromagnets or relays.
324, Electricity: Measuring and Testing,
415+, for contact, relays and switch testing, subclass 200 for magnetic testing devices utilizing magnets and electromagnets or inductors, and subclasses 76.11+ for electric meters utilizing magnets and electromagnets. 332, Modulators, appropriate subclasses for modulators utilizing magnets and electromagnets.
333, Wave Transmission Lines and Networks, appropriate subclass for wave transmission lines and networks utilizing magnets, electromagnets or relays,
101+, for plural channel systems including branched circuits with switching, subclass 13 for resonator type breakdown discharge system, e.g., T-R or R-T systems, and 245+ subclasses for long line elements and components which may perform a switching or blocking function, e.g., long line short circuiting switches and long line shorting plugs.
334, Tuners, appropriate subclasses for a variable tuner comprising an inductor and a capacitor, with the inductor and/or capacitor being variable,
47+, for tuners which are varied or adjusted by a switching
operation which usually involves a make and break type switch of the electromagnetically actuated type.
336, Inductor Devices, appropriate subclasses for the structure of transformers and inductive reactors of general utility.
340, Communications: Electrical, appropriate subclasses for miscellaneous electrical communication systems utilizing magnets, electromagnets or electromagnetically actuated switches.
343, Communications: Radio Wave Antennas, for radio wave energy systems such as radar and directive systems, which have an antenna, some of which systems utilize magnets, electromagnets or relays and for antennas which may utilize electromagnetically actuated switches, note particularly
768, for slot type antennas with periodic control of the slot or coupling; subclass 777 for plural wave guide type antennas with control of the individual antenna; subclass 876 for antennas with switching between the antennas and lines; and subclass 904 for antennas which may be combined with a switch.
346, Recorders, appropriate subclasses for recording devices utilizing magnets, electromagnets or relays.
361, Electricity: Electrical Systems and Devices, 245+, for polarity reversing systems; subclasses 2+ for safely systems involving circuit interruption; subclasses 139+ for relay and electromagnetic switching systems; and subclasses 600+, especially subclass 376 for arrangements of circuit-closer structures on a mounting or combinations of circuit-closers with conductors or busbars, including enclosed or housed switchboards.
362, Illumination,
398, for electric illumination device having magnetic supporting means.
363, Electric Power Conversion Systems, appropriate subclasses for conversion systems utilizing electromagnets, magnets, or relays.
373, Industrial Electric Heating Furnaces, particularly
138+, for heating inductors combined with electric furnace structure.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,
186.01+, for apparatus for producing chemical changes in electromagnetic fields.
427, Coating Processes,
58+, for coating processes, per se, wherein the product in useful as an electrical product.
428, Stock Material or Miscellaneous Articles, 375+, for coated electrical conductors which may include contacts and switches, but which are merely recited as a base with a particular coating thereon.
439, Electrical Connectors,
12, for electrical connectors having magnetic holding means.
455, Telecommunications,
352+, for remotely controlled radio receivers which may use electromagnets; and subclasses 170.1+ for radio receivers for tuning or wave selection using electromagnets.
150+, for high temperature (Tc > 30 K) superconducting devices, and particularly subclasses 211+ for electrical energy storage devices, magnetic coils, wires, cable, etc.
600, Surgery,
9+, for permanent magnets or electromagnets utilized in surgery and diagnostics.