PTO Manual of Classification for US patents

PTO Manual of Classification for US patents

What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.


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363-131 121-55A 14-.5
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Class Number: 336
 Class Title: INDUCTOR DEVICES

Subclass  Subclass
Number    Title

  5       POLYPHASE
  10      .ADJUSTABLE INDUCTOR
  12      .Interconnected windings
  15      WITH COIL WINDING AND/OR UNWINDING
  20      WITH DEFORMABLE OR DISTORTABLE COIL AND/OR CORE
  30      WITH CONDITION-RESPONSIVE INDUCTANCE ADJUSTING MEANS (E.G., BY
           ELECTROMAGNET)
  40      ADJUSTABLE BY MAGNETIC FORCE BETWEEN RELATIVELY MOVABLE PARTS OF
           THE INDUCTOR
  41      .Weight-counterbalanced coil or core
  45      WITH MOVABLE ELEMENT POSITION INDICATOR
  55      WITH TEMPERATURE MODIFIER
  57      .With inductor insulating fluid circulating means
  58      .Liquid insulating medium
  59      .Vented casing
  60      .Ventilating passages (e.g., by coil section or core part
            spacers)
  61      .Heat exchanging surfaces
  62      .Hollow conductor coil
  65      WITH MOUNTING OR SUPPORTING MEANS (E.G., BASE)
  66      .Handle
  67      .Bracket
  68      .Suspension
  69      WITH COIL CAPACITANCE MODIFYING MEANS
  70      .With surge potential gradient modifying means
  73      WITH CLOSED COIL OR CONDUCTOR MEMBER
  75      .Movable with respect to another coil
  77      ..With magnetic portion
  79      ..Angularly movable
  82      COIL FORMS PROTECTIVE CASING
  83      CORE FORMS CASING
  84 R    WITH ELECTRIC AND/OR MAGNETIC SHIELDING MEANS
  84 C    .Conductive
  84 M    .Magnetic
  87      .Adjustable inductor
  90      WITH OUTER CASING OR HOUSING
  92      .Internal inductor support
  94      .Fluid insulation
  96      .Potted type
  98      .Exposed core portions
  100     WITH VIBRATION CONTROL
  105     COMBINED
  107     .With connector
  110     WITH PERMANENT MAGNET
  115     RELATIVELY MOVABLE COILS
  116     .With means to change coil length and/or connections
  117     .With core
  118     ..Relatively movable core and coils
  119     ..Coil and core movable as a unit
  120     ...Angularly movable
  121     .Angularly and linearly movable coils
  122     .Angularly movablee
  123     ..About axis parallel to or coaxial with the other coil axis
  124     ..Nonsymmetrically pivoted coil movable on axis transverse to
             other coil axis
  125     ..About axis normal to other coil axis
  126     ...Plural coils movable with respect to a coil
  127     ...Similar spherical-shaped coils
  128     ...Tubular stationary coil
  129     .Movable along or parallel to other coil axis
  130     RELATIVELY MOVABLE CORE AND COIL
  131     .Plural coils with plural cores
  132     .Plural relatively movable core parts
  133     ..Adjustable magnetic shunt
  134     ..Adjustable air gap
  135     ...Angularly movable
  136     .Telescoping magnetic body and coil
  137     WITH MEANS TO CHANGE COIL LENGTH OR CONNECTIONS
  138     .Parallel-spaced conductors or coils bridged by movable
            connector
  139     .Contactor following helical conductor
  140     ..Plural movable contactors
  141     ..With contactor guide track
  142     .Coil connections changed by moving coil (e.g., coil
            substitution)
  143     .With connection reversing means
  144     .With variable number of short-circuited turns
  145     .Plural coils (e.g., transformers)
  146     ..Inductance change in plural coils
  147     ..Plural coils or coil portions connected in parallel or in
             series and parallel
  148     ..Autotransformers
  149     .Contactor slidable on coil winding
  150     .Series change (e.g., tap change)
  155     INDUCTIVE REGULATORS WITH NO RELATIVELY MOVING PARTS
  160     .With magnetic shunt to increase leakage reactance
  165     ..Air gap in magnetic shunt
  170     THREE OR MORE WINDINGS
  171     .Noninductively related windings
  172     COIL TURN LINKS PORTION OF CORE ACROSS SECTION (E.G., FRACTIONAL
           TURN)
  173     INTERLINKED COILS OR WINDINGS (E.G., CURRENT TRANSFORMER)
  174     .Coil surrounding linear conductor
  175     CORE SURROUNDING LINEAR CONDUCTOR
  176     .Hinged core
  177     WITH COIL OR MAGNETIC MATERIAL
  178     WITH CLOSED CORE INTERRUPTED BY AN AIR GAP
  179     COILS WITH TEMPERATURE COMPENSATING MEANS
  180     WINDING FORMED OF PLURAL COILS (SERIES OR PARALLEL)
  181     .Wound to reduce external magnetic field (i.e., fieldless
            winding)
  182     .Two windings (e.g., transformer)
  183     ..Coils of different windings interposed
  184     .Coils having different axis or on different core legs
  185     .Coil supports or spacers
  186     COIL FORMED OF PARALLEL CONNECTED CONDUCTORS
  187     .Crossed or transposed conductors
  188     TWO WINDINGS WITH MUTUALLY CROSSED WINDING TURNS
  189     COIL WITH CROSSED TURNS
  190     .Bank or universal wound coils (e.g., honeycomb, random wound))
  191     .Basket weave (single layer)
  192     WINDING WITH TERMINALS, TAPS, OR COIL CONDUCTOR END ANCHORING
           MEANS
  195     COIL SUPPORTED WITHIN GROOVED OR HOLLOW COIL CONDUCTOR OF
           ANOTHER COIL
  196     WITH SUPPORTING AND/OR SPACING MEANS BETWEEN COIL AND CORE
  197     .Coil clamps or wedges
  198     .Preformed insulation between coil and core (e.g., spool)
  199     COIL OR COIL TURN SUPPORTS OR SPACERS
  200     .Printed circuit-type coil
  205     .Coil turns cemented to support or embedded in plastic
  206     .Flexible filament, strip or sheet insulation
  207     .With coil turn spacer
  208     .Coil on a preformed suport or mount
  209     COIL WRAPPER ON BINDER
  210     WITH CORE CLAMPS, WEDGES OR FASTENERS
  211     CONCENTRIC OR NESTED CORE ELEMENTS
  212     PLURAL PART CORE
  213     WOUND CORE
  214     MULTIPLE MAGNETIC PATHS
  215     .Three or more
  216     CORE JOINT STRUCTURE
  217     .Overlapping laminations (e.g., "Break Joint")
  218     MAGNETIC ORIENTATION (I.E., DIRECTIONALLY PRESTRESSED CORE
           MATERIAL)
  219     CORE INSULATION (E.G., BETWEEN CORE PARTS)
  220     TWO WINDINGS
  221     COIL AND CORE
  222     WINDINGS
  223     .Having conductor of particular shape (e.g., tapered
            longitudinally or of noncircular cross section)
  224     .Nonuniformly spaced turns
  225     COILS OF SPECIAL CONFIGURATION
  226     .Figure "8" section
  227     .Polyhedral section
  228     ."D" section
  229     .Toroidal
  230     .Spherical
  231     .Conical
  232     .Planar type
  233     CORE (E.G., COMPRESSED POWDER)
  234     .Laminated type (includes bundles of rods or wires)
  *       ******************************
  *       DIGESTS
  *       ******************************
  DIG 1   Superconductive
  DIG 2   Separable