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.


Enter a class/subclass code here to get a list of patent titles. Use any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any subclass letters capitalized. Currently Design Patent titles (those in the classes of the form Dxx.yy) are not retreivable.

Enter class/subclass code:


Class Number: 234
 Class Title: SELECTIVE CUTTING (E.G., PUNCHING)

Subclass  Subclass
Number    Title

  1       METHODS
  2       .Comprising utilization of a pattern
  3       ..And modification of the pattern or its effectiveness
  4       WITH TYPE-WIDTH AND INTER-WORD-SPACE TOTALIZER OR INDICATOR
           (I.E., FOR JUSTIFICATION)
  5       .Embodying exchangeable sub-assembly unit for font change
  6       .Embodying means to facilitate error correction
  7       .Embodying means to tabulate or to adjust line length
  8       .Embodying means to insert justification symbol
  9       ..With means to effect selection of justification tools
  10      ...With means to insert justification symbol at other than end
              of line
  11      .Embodying means to drive totalizer
  12      .."Unit-Wheel" type of counter
  13      WITH MEANS TO IMPOSE PROGRAMMED CONTROL OF AUXILIARY-OPERATION
  14      .Embodying means to change code
  15      .Embodying means to afford choice of programs
  16      .Embodying means to shift control between plural input sources
  17      ..Diverse sources
  18      .Embodying means to effect selection or shift or skip of field
  19      ..With change in feed of pattern or work
  20      .For start or stop of control from given input source
  21      .For stopping after predetermined number of operations
  22      WITH MEANS TO IMPOSE RANDOMLY ACTUATED CONTROL OF
           AUXILIARY-OPERATION
  23      .Embodying means to detect order of occurrence of input data
  24      ..Zero suppression or insertion
  25      .Embodying means to detect indicium in work or pattern
  26      ..With group number control of recording
  27      ...With control of feed of pattern and/or work
  28      ..With means to control feed
  29      ...Control of pattern feed
  30      .Stopping means
  32      ..Upon detection of machine defect or misoperation
  33      ...With means to check on tool actuation
  34      ....With verifier (data comparator)
  35      WITH INPUT MEANS COMMON TO TOOL SELECTOR AND PRINTER
  36      .Step by step printer
  37      ..On same workpiece
  38      WITH NONSELECTIVE CUTTING OR PUNCHING MEANS
  39      .Work sizing or cyclic (e.g., feed hole) punching
  40      WITH SORTING MEANS OR COPY HOLDER
  41      CONVERTIBLE
  42      PLURAL TOOL FIELDS
  43      .With means to select a given field
  44      ..By manually settable means
  45      .With independent manual input means
  46      NOTCHING OR SLITTING MEANS
  47      .Notching
  48      ..Uniform depth
  49      MEANS FOR CUTTING MOVING WORK
  50      .Flying cutterr
  51      EMBODYING UNICYCLIC TOOL ACTUATING MEANS
  52      WITH INTERLOCK BETWEEN TOOL ACTUATOR AND SELECTOR
  53      WITH MEANS TO ESTABLISH CONTROL PATH, FROM ONE OF A PLURALITY OF
           INPUT SOURCES, TO TOOL SELECTION MEANS
  54      .Diverse input sources
  55      WITH MEANS TO STORE AND RETRIEVE INPUT DATA AFTER REMOVAL OF
           INPUT-IMPULSE
  56      .With read-out in different order
  57      .With optionally settable means to clear storage upon read-out
  58      .With serial read-out from storage
  59      WITH MEANS TO INITIATE TOOL SELECTION BY SENSING PATTERN INDICIA
           OR CONFIGURED MACHINE ELEMENT
  60      .Means to sense cyclically movable machine element
  61      ..Serial number punching of work
  62      .With repeated sensing of same pattern field
  63      .Pattern indicia carried by work
  64      ..Processed work as pattern for following work
  65      .Including plural input means, jointly effective
  66      .Serial read-out from full bank of pattern-sensers
  67      .With means to modify effect of pattern data
  68      ..By inversion of pattern data
  69      ..Code conversion
  70      ...Combinational-code to or from one-hole-code
  71      ..Means for timing the tool actuation
  72      ..Means for transposition, shift or suppression of field
  73      ...By adjustable electrical means
  74      .By a senser with more than two output signals
  75      .Pattern or senser in motion during sensing
  76      .Sensing by tool directly engageable with pattern
  77      ..Tool actuation blocked by pattern
  78      ..Tool actuating force transmitted by pattern
  79      .With means to feed pattern or pattern sensing means
  80      ..With means to adjust pattern position or feed, or senser
  81      ..Senser moves tool into position to receive actuating force
  82      ..Senser controls effectiveness of actuating force to selected
             tool pair only
  83      ...Senser actuates tool
  84      ..Interposer movable by senser
  85      ...Integral or fixed thereto
  86      ...Biased interposer and senser
  87      ..Senser controls application of power to interposer
  88      ...Connects or disconnects interposer linkage and cyclically
              movable actuator
  89      .Pattern or record and/or sensing means per se
  90      WITH MEANS TO CAUSE DELAYED ACTUATION OF SELECTED TOOL
  91      .With plurality of selecting means sequentially controlled by
            one input means
  92      WITH OPTIONALLY SETTABLE MEANS TO CLEAR TOOL SELECTION
  93      .Effective on portion of tool field
  94      WITH SPECIFIC MEANS TO SELECT A PLURALITY OF TOOLS (I.E.,
           COMBINATIONAL CODING MEANS)
  95      .Successively
  96      .With means to change or facilitate change of code
  97      .Coded interposer
  98      ..Differentially positioned
  99      ...Turret of interposers
  100     ....Power transmitting
  101     ..Power drivenn
  102     .Coded selector means
  103     ..Actuates contacts
  104     ..Paired bars
  105     ..Selector means drives interposers
  106     .Direct punching (coded actuation)
  107     ..With power means to actuate tools
  108     ...Individual electrical drives
  109     WITH SPECIFIC MEANS TO SELECT A SINGLE TOOL
  110     .By immobilizing a portion of an element in tool drive train
  111     .Interposer
  112     ..Differentially positioned
  113     ...Turret of interposers
  114     ..Power driven
  115     ...By individual electric means
  116     ..Reciprocable in a straight line
  117     .Means to move an element of the tool drive train into power
            transmitting relationship with a power source
  118     ..Shiftable element is the tool
  119     ..Continuously rotating actuator
  120     WITH INPUT MEANS OTHER THAN PATTERN SENSER TO CONTROL TOOL
           SELECTION
  121     .Differentially positionable input element (e.g., lever)
  122     .Plural input channels
  123     ..Keyboard
  124     ...With auxiliary function control means
  125     ....Repeat key
  126     WITH MEANS TO VARY WORK FEED INCREMENT
  127     .Dependent upon tool(s) selected
  128     WITH WORK HOLDER OR MOVER
  129     .With reversible work-feed (e.g., with back spacer)
  130     .With cyclically advanced work carrier
  131     MISCELLANEOUS
  *       ******************************
  *       DIGEST
  *       ******************************
  DIG 1   Fluid and photoelectric control