US PATENT SUBCLASS 336 / 234
.~ Laminated type (includes bundles of rods or wires)


Current as of: June, 1999
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336 /   HD   INDUCTOR DEVICES

233  DF  CORE (E.G., COMPRESSED POWDER) {1}
234.~ Laminated type (includes bundles of rods or wires)


DEFINITION

Classification: 336/234

(under subclass 233) Inductor devices having a core or magnetic body comprising superimposed bundles or layers of magnetic material in the form of sheets, rods, or wires. Single sheets, punchings, rods or wires which have such configuration that they are of no utility except in building up a core for use in an inductor device falling within the class definition are classified in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

60, for laminated core structures having spaces between groups of laminations to provide ventilating passages for cooling the core and/or coil structure.

61, for laminated core structures having heat exchanging surfaces interleaved between laminations for the purpose of conducting heat energy away from the core.

84, for core structure including electric or magnetic shields between laminations.

177, for inductors having a coil conductor of magnetic material.

210, for laminated core structures wherein clamps, wedges or other fasteners are utilized to hold the laminations together. 211, for cores consisting of concentric or nested elements.

212, for plural part core (e.g., an assemblage of preformed leg and yoke portions).

213, for inductor cores comprising a continuous strip of magnetic material wound to form a core.

217, for inductor cores of the laminated type wherein the core joints comprise alternately overlapping laminations.

218, for laminated inductor core structures wherein the material of the core laminations has been treated to orient its crystalline grain structure to modify its magnetic characteristics.

219, for inductor core structures with electrical insulation between core parts, particularly between core laminations.

SEE OR SEARCH CLASS

29, Metal Working,

602.1+, particularly subclass 605, for inductor assembly including winding or coiling of core material, and subclass 609 for the assembly of laminated cores in general. See the comprehensive search notes listed under "SEARCH CLASS," of subclasses 602.1+ of Class 29, relative to other product, manufacturing or process classes for electromagnets and transformers.

72, Metal Deforming,

66, 135+ and 146+, for a method of or an apparatus for bending metal into a helical or spiral coil form. 83, Cutting, appropriate subclasses for processes and apparatus for cutting or punching blanks for forming laminated cores, particularly

32, which provides for cutting interdigitating produces, and subclass 40 which provides for plural steps of blanking and cutting.

140, Wireworking, appropriate subclasses, for methods and apparatus for winding and for shaping wire of magnetic material to form cores.

156, Adhesive Bonding and Miscellaneous Chemical Manufacture, appropriate subclasses for processes and apparatus for making laminated products, e.g., by assembling winding, wrapping, folding, etc., of filaments, sheets or webs.

205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions, especially

76+, for the product and process for making sheets, webs, wires or filaments electrolytically, and subclasses 138+ and 152 for electrolytically coating sheets, webs, wires and filaments constituting an electrically conducting base.

242, Winding, Tensioning, or Guiding,

430+, for a process or apparatus for forming an article by winding material onto a core.

310, Electrical Generator or Motor Structure,

10+, appropriate indented subclasses, for the structure of laminated cores for dynamo electric machines.

428, Stock Material or Miscellaneous Articles, appropriate subclasses, for a metallic or nonmetallic stock material product in the form of a single or plural layer web or sheet not elsewhere provided for, and especially

364+, for a structurally defined or coated rod, strand, fiber or filament, which may be of a magnetic material, and subclass 621 for metallic composite stock comprising plural adjacent metal layers and an additional nonmetal layer; subclasses 577+ for metal blanks of definite shape; subclasses 548+ for metal particle containing composite material (i.e., plural metallic layers); and subclasses 615+ for composite metal materials in general..