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: 335
 Class Title: ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNET, AND
              ELECTROMAGNETS

Subclass  Subclass
Number    Title

  1       COMBINED DIVERSE SWITCHES (E.G., MANUAL-ACTUATED AND ART TYPE)
  2       ELECTROMAGNETICALLY ACTUATED SWITCHES
  3       .Utilizing magnetostrictive elements
  4       .Radio frequency switch (e.g., T/R switch)
  5       ..With coaxial components
  6       .Automatic circuit-interrupting devices (e.g.,
            circuit-protective devices)
  7       ..Responsive to plural diverse circuit conditions (e.g., voltage
             and current)
  8       ..Multipole or polyphase
  9       ...With individual latch or trip means in each leg
  10      ...With common latch or trip means
  11      ..Plural switches
  12      ..With shunting contacts
  13      ..With auxiliary switch means (e.g., for energizing coil)
  14      ..With direct connected contact separating means
  15      ..With contact biasing, holding or pressure control means
  16      ...Magnetic or electrodynamic (e.g., blowon or blowoff)
  17      ..With switch condition signalling, indicating or alarm means
  18      ..Responsive to predetermined or abnormal current condition
             (e.g., direction, phase angle or amplitude)
  19      ...Zero current
  20      ..Voltage responsive (under, over or no voltage)
  21      ..With latch or trip means
  22      ...Plural latch or combined latch operating means for single
              latch
  23      ....With diverse-type actuating means (e.g., magnetic and
               thermal)
  24      ...Trip-free (i.e., cannot be manually reclosed while overload
              exists)
  25      ....With disabling means (for contact-actuator)
  26      ...Reclosing or resetting
  27      ....Automatic combined with manual
  28      ....Automatic combined with timing or delay means
  29      .....Fluid-controlled
  30      .....Mechanical motor-controlled (e.g., clock movement)
  31      .....Thermally actuated
  32      .....With counting or integrating means (e.g., repetitive for
                given number of reclosures)
  33      ......With means providing for operation after variable
                 intervals or fixed intervals of different duration (e.g.,
                 first reset occurs) instantaneously, with other at longer
                 intervals)
  34      ......With lockout
  35      ...Plural trips or combined operating means for single trip
              (e.g., magnetic with thermal)
  36      ....With common structural elements
  37      ....With thermal element comprising magnetic flux source
  38      ...Magnetic
  39      ....With time delay (e.g., thermal)
  40      .....Responsive to or proportional to degree of overloadd
                condition
  41      ....With magnetic flux winding directly in series with main
               contacts
  42      ....With adjusting or calibrating means
  43      ...Thermal
  44      ....Including ambient temperature compensating means
  45      ....With regulating, adjusting or calibrating means
  46      ..With contact rebound or other undesirable motion prevention
             means
  47      .Utilizing conductive liquid (e.g., mercury)
  48      ..Comprising three or more electrodes or circuit-completion
             means
  49      ..With liquid-displacement means
  50      ...Comprising plural interconnected liquid containers
  51      ...Magnetic
  52      ....Piston or plunger
  53      .....Combined with timing or delay means
  54      ...Tiltable or rotating liquid chamber
  55      ..Armature structure
  56      ...Comprising freely movable floating slug or mass
  57      ..Contact or electrode structure
  58      ...Mercury or mercury wetted
  59      .Retarded or delayed type
  60      ..Plural sets of contacts alternately, consecutively or
             selectively opened or closed
  61      ..With pneumatic delay means (e.g., dashpot, etc.)
  62      ..With hydraulic delay means
  63      ..With magnetic or electromagnetically actuated delay means
  64      ..With mechanical delay means
  65      ...Motor or motor-controlled (e.g., clockwork)
  66      ..Electrothermal delay means
  67      ..Adjustable or regulatable
  68      .With motor
  69      ..Reversible or oscillatable
  70      ..Frequency-responsive or synchronous
  71      ..Contact actuating structure
  72      ...Plural contacts
  73      ...Eccentric or cam
  74      ...Including brake, clutch or detent
  75      ....Magnetically actuated
  76      ...Comprising energy storage means (e.g., wound spring)
  77      ..With locking, latch or tripping structure
  78      .Polarity-responsive
  79      ..Storage or memory type (e.g., bistable)
  80      ..Armature structure
  81      ...Freely movable within coil or magnetic field between poles
  82      ...Floating (i.e., no fixed pivot)
  83      ..Contact structure of composition
  84      ..Magnetic structure (e.g., saturable)
  85      ...Pole structure
  86      ..With adjusting means
  87      .Periodic (e.g., vibrators)
  88      ..Plural periodic switches or with plural pairs of contacts
  89      ...Selectively, alternately, or consecutively actuated
  90      ..With vibrating or oscillating element damping, frequency
             adjusting or vibration control
  91      ..Actuating magnet structure or material
  92      ...Plural magnetss
  93      ..Vibratory reed or other periodic contact actuator
  94      ...Tuned or resonant at a particular frequency
  95      ..Armature
  96      ...Adjustable
  97      ..Contact arrangement or composition
  98      ...Adjustable contacts
  99      .Alternating or fluctuating current type
  100     ..Induction or eddy current (e.g., vane or closed conductive
             loop)
  101     ..Preselected or synchronous frequency responsive
  102     ..Polyphase
  103     ..With plural magnetic-actuating structures
  104     ..With chatter, bounce or vibration-prevention means
  105     ..With damping or adjustment means
  106     .Multiple contact type
  107     ..Contacts-selectively, sequentially, alternately, or
             intermittently actuated
  108     ...Automatic telephone type
  109     ....Plural or multidirection mechanical selector motions
  110     .....With motion-conversion means
  111     .....Selector structure
  112     ......Crossbar type
  113     ....With holding, locking or latching means
  114     ....Rotary selector motion
  115     ....Reciprocating selector motion (e.g., sliding)
  116     ....With reset or selector-restoring means
  117     ....With operational mode-varying means
  118     ....Motor-driven
  119     ...Plural armatures
  120     ....With interlocking or mechanical connection
  121     ...Contact-actuation means
  122     ....With rotary or compound motion device (e.g., rack and
               pinion)
  123     .....Pawl and ratchet
  124     ....Armature structure
  125     .....Rotary armature
  126     ....Reciprocating or linearly sliding
  127     ..Simultaneously actuated
  128     ...By pivotal or rockable armature
  129     ....Movable contacts or slidable card bar or comb
  130     ....Movable contacts on circular card or comb structure
  131     ...By reciprocating armature
  132     ..With adjustable, replaceable or interchangeable structural
             features
  133     ..Contact structure or arrangement
  134     ...Grid or coordinate
  135     ...In pile or stack
  136     ..With plural magnet or coil means
  137     ...Of diverse type
  138     .Step-by-step type (e.g., closure responsive to predetermined
            number of control pulses
  139     ..With timing or indexing means (e.g., clock mechanism)
  140     ..Ratchet and pawl-type actuator
  141     .With electrothermal-actuating means (e.g., expansible wire)
  142     ..Fusible element
  143     ..Independently operative
  144     ..With armature positioning or adjusting
  145     ..Bimetallic elementt
  146     ..Thermomagnetic (e.g., device whose magnetic permeability
             changes with temperature)
  147     .Electrodynamically actuated
  148     ..Moving coil type
  149     ...Plural coils
  150     ...With reset or restoring means
  151     .Vacuum or hermetically sealed type (e.g., reed switch)
  152     ..Plural
  153     ..With permanent magnet structure
  154     ..Armature, contact or contact-actuating means (e.g., sealed
             reed)
  155     .With predetermined current or voltage value-responsive
            actuator
  156     .With protective means for switch or contacts
  157     .With operation-inhibiting means (shock resistant)
  158     ..From open position
  159     .Plural independently operable switches
  160     ..Interlocking
  161     ...With cooperative-actuating means
  162     ..With unitary housing, support or flux path
  163     ..With unitary or common magnetic flux source
  164     .Manually or gravity-operated latch with electromagnetic trip
  165     .Contact-actuating means unitary with latch or trip
  166     .With latch- or trip-reset means
  167     .Latching means
  168     ..With positive lock (against movement)
  169     ..Plural or with auxiliary latch
  170     ..Magnetically operated
  171     ..Including spring-biasing or energy-storage means
  172     .Tripping means
  173     ..Plural diverse (e.g., manual plus electromagnet)
  174     ..Magnetically operated
  175     ...Utilizing hammer or other impacting means
  176     ...With adjusting or regulating means
  177     .Plural magnets or flux sources
  178     ..Of diverse electrical characteristics
  179     ..Of diverse magnetic characteristics (e.g., permanent plus
             electromagnet)
  180     ..With common core or single armature
  181     ...Pivoted armature
  182     ...Magnetic fields opposing (e.g., differential)
  183     ..Magnetic fields or torques acting alternately in opposite
             directions
  184     ..With plural reciprocating armatures aligned or rigidly
             connected
  185     .Contact-actuating means
  186     ..Plural or combined (e.g., manual with other)
  187     ..Unitary with armature
  188     ..Snap-action
  189     ..Mechanical linkage
  190     ...Including cam, roller or eccentric means
  191     ...Compound motion device (e.g., toggle)
  192     ..With biasing means (open or closed)
  193     ..With vibration-, bounce- or chatter-prevention means
  194     ..With pressure-maintaining or adjusting means
  195     ...Magnetic or electrodynamic force
  196     .Contact composition or structure
  197     ..Adjustable or readily detachablee
  198     ...Convertible from normally open to normally closed and vice
              versa
  199     ..Printed circuit
  200     ..Pivoted or relatively movable independently of the armature
  201     .With arc-suppression or extinguishing means
  202     .With housing or support means
  203     .With armature structure
  204     .Through conductor type (i.e., conductor field actuates
            armature)
  205     PERMANENT MAGNET-ACTUATED SWITCHES
  206     .Plural switches
  207     .Plural magnets
  208     .Thermomagnetic
  209     MAGNETS AND ELECTROMAGNETS
  210     .Electron or ion beam deflecting type
  211     ..With magnetic shunt
  212     ..With adjustable magnetic element (e.g., to change the air gap,
             or its position on the cathode ray tube)
  213     ..With coil structure
  214     ...With electric or magnetic-shielding means
  215     .Magnetostrictive-type device
  216     .Superconductive type
  217     .Temperature-responsive type (e.g., temp. compensation means)
  218     ..With time-delay means
  219     .Combined with diverse-type art device
  220     .With magneto-mechanical motive device (e.g., electromagnet with
            armature)
  221     ..Frequency-responsive type
  222     ..With relatively movable coil and permanent magnet (e.g.,
             D'Arsonval type) position on the cathode ray tube)
  223     ..With relatively movable conductors (e.g., dynamometer)
  224     ...Induced current-type movable conductor (e.g., eddy current
              member)
  225     ....Rotating disk
  226     ....Short-circuited winding
  227     ..Saturable magnetic type
  228     ..With motion-conversion means (e.g., reciprocating to rotary
             motion)
  229     ..With permanent magnet
  230     ...Polarized electromagnet
  231     ....Varying alternating current amplitude responsive
  232     ....With plural armatures
  233     .....With armature-locking means
  234     ....With reversible magnetic flux-type movement (e.g., bistable
               type)
  235     ....With vibrating reed or spring bar-type armature
  236     ..With a shunt path for magnetic flux
  237     ...Adjustable
  238     ..With auxiliary armature-movement control means (e.g., manual)
  239     ..With time delay armature-movement control means
  240     ...Dashpot type
  241     ...Auxiliary control coil
  242     ...With plural armatures selectively retarded
  243     ..Alternating current type
  244     ...Flux phase displacement or varying means
  245     ....Shading coil
  246     ....Plural winding type
  247     ...With chatter- or noise-preventing meanss
  248     ....Spring or cushion-type vibration absorber
  249     ....Special armature construction or mounting means (e.g., to
               assure positive seating of armature)
  250     ...Coil construction or mounting means
  251     ...With plunger-type armature
  252     ...With vibrating armature
  253     ..With armature latch means (e.g., means to retain armature in
             open or closed position
  254     ...With latch-control winding
  255     ..With plunger-type armature
  256     ...Plural coils controlling a single armature
  257     ...With shock-absorbing means (e.g., means to absorb the shock
              of armature or plunger)
  258     ...With armature stroke adjustment
  259     ...Plural plungers
  260     ...With sealed enclosure (e.g., dust or moistureproof)
  261     ...Armature structure or material
  262     ....With centering or aligning or guiding means
  263     ....With plunger rotation preventing means (e.g., means to
               prevent undesired rotation of the plunger during movement)
  264     ....Sectional plunger
  265     ..Plural armatures actuated by single electromagnetic coil
  266     ..Plural coils or magnets control armature movement
  267     ...With plural armatures
  268     ...Coils or magnets being separately or selectively
              controllable
  269     ..With dynamically balanced armature
  270     ..Armature-mounting means
  271     ...With armature bounce or vibration-preventing means
  272     ...Rotating disk or cylindrical armature
  273     ...With armature-adjusting means (e.g., means to adjust the
              relative distance between core and armature)
  274     ...With armature-biasing means or bias-adjustment means
  275     ...Hinge joint type armature-mounting means
  276     ...Pivot support type armature-mounting means
  277     ..With shock absorption, vibration or bounce-preventing means
  278     ..With casing or enclosure
  279     ..Armature shape, structure or material
  280     ...Balls, filings or granular material
  281     ..Core or pole shape, structure or material
  282     ..Coil shape, structure or material
  283     .Blade sharpening or conditioning type magnets
  284     .For magnetizing or demagnetizing
  285     .Work or object holding type
  286     ..With workpiece to magnet adapted or fixture (e.g., to bridge
             flux)
  287     ...Angularly adjustable fixture
  288     ..Rotary-type magnetic chuck (permanent or electromagnet type)
  289     ..Electromagnet type (e.g., electromagnetic chuck)
  290     ...With circuit control means
  291     ...Lifting or attracting type (e.g., for lifting pigiron or
              pulling hairpins)
  292     ....Hermetically sealed or moisture-proofed
  293     ....Hand-held type
  294     ....With outer casing or housing
  295     ..With magnetic-hold control means (e.g., means to control the
             hold strength)
  296     .Magnet structure or materiall
  297     ..Core structure
  298     ...Movable or adjustable cores
  299     ..Coil structure or material
  300     ...With cooling means
  301     ..With electric- or magnetic-shielding means
  302     ..Permanent magnets
  303     ...Enclosed in flexible plastic, cloth or tape
  304     ...With flux leakage-reducing means
  305     ...Magnetic plug type (e.g., crankcase plug)
  306     ...Plural magnets