Cutting by use of rotating axially moving tool

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408

SECTION I - CLASS DEFINITION

Class 408 is the residual locus of methods and machines for penetrating material, without substantial reshaping flow of such material, by means of a solid tool that turns about an axis, and moves relative to a workpiece, along that axis during operation.

(1) Note. The phrase "without substantial reshaping flow of such material" is intended to cover the noncutting deformation of material by forcing a tool into or through said material, which method or apparatus is provided for in the class for Metal Deforming (see References to Other Classes, below).
(2) Note. Class 408 is intended to ultimately include all cutting as defined above; however, not all classes have now been screened for such art. Included among such classes likely to include patents proper for Class 408 and not yet screened are Classes 82, 142, 409, and 451. SCOPE OF THE CLASS Class 408 is an elemental or basis class. That is, its subject matter is restricted (so far as possible) to means for, or steps of, accomplishing the following functions; cutting something (the "work"); or cutting, and handling the work to be cut; or cutting and handling the product of the cutting operation.


 
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Subclass
Title
226
Including detailed shank
321 Patents
230
Spiral channel
304 Patents
1BD
Bit detachable
8 Patents
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2
WITH MEANS TO WEIGH OR TEST WORK OR PRODUCT
39 Patents
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3
WITH MEANS TO REGULATE OPERATION BY USE OF TEMPLET, TAPE, CARD, OR OTHER REPLACEABLE INFORMATION SUPPLY
109 Patents
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4
WITH INTERLOCK BETWEEN MACHINE ELEMENTS
12 Patents
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5
WITH RANDOMLY-ACTUATED STOPPING MEANS
4 Patents
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6
Responsive to condition of tool or tool-drive
103 Patents
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7
Responsive to condition of work or product
16 Patents
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8
WITH CONTROL MEANS ENERGIZED IN RESPONSE TO ACTIVATOR STIMULATED BY CONDITION SENSOR
64 Patents
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9
To control tool rotation
69 Patents
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10
To control infeed
71 Patents
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11
Responsive to tool
107 Patents
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12
Responsive to work
51 Patents
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13
To control relative positioning of tool and work
144 Patents
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14
WITH STOPPING UPON COMPLETION OF PRESCRIBED OPERATION
88 Patents
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15
Responsive to condition of work or product
18 Patents
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16
WITH SIGNAL, INDICATOR, ILLUMINATOR OR OPTICAL MEANS
215 Patents
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17
INCLUDING MEANS TO CAUSE TOOL TO PROGRESSIVELY VIBRATE TOWARD WORK
71 Patents
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18
WITH MEANS TO CONDITION TOOL
3 Patents
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19
WITH MEANS TO DEFORM WORK TEMPORARILY
16 Patents
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20
CONVERTIBLE CUTTING MEANS
57 Patents
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21
Utilizing common cutting tool
11 Patents
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