US PATENT SUBCLASS 83 / 284
CUTTING MOTION OF TOOL HAS COMPONENT IN DIRECTION OF MOVING WORK

Current as of: June, 1999
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83 /   HD   CUTTING

284CUTTING MOTION OF TOOL HAS COMPONENT IN DIRECTION OF MOVING WORK {17}
285  DF  .~> With means to initiate intermittent tool action {2}
298  DF  .~> Interrelated control of tool and work-feed drives
299  DF  .~> With means to concurrently adjust flying frequency and retain flying speed of tool
300  DF  .~> Plural diverse flying cutters
301  DF  .~> Combined with other type cutter {1}
303  DF  .~> Plural separately mounted flying cutters
304  DF  .~> With means to render cutter pass(es) ineffective {1}
306  DF  .~> Oscillating work shifter adjacent cutter {1}
307.1  DF  .~> Wire tool {1}
308  DF  .~> Tool flies by engagement with the work {1}
310  DF  .~> Flying support or guide for work
311  DF  .~> With tool speed regulator
312  DF  .~> With work feed speed regulator {1}
314  DF  .~> Spring return of tool in counterfly direction
315  DF  .~> Tool mounted on oscillating standard {1}
318  DF  .~> Tool carrier shuttles rectilinearly parallel to direction of work feed {2}
321  DF  .~> Orbital motion of cutting blade {7}

DEFINITION

Classification: 83/284

(under the class definition) Device which includes means to move one or more tools into cutting engagement with the work while the work is being moved to and through a cutting zone to produce (a) spatially unconnected, or (b) undulant (e.g., zigzag) cuts, and in which the tool's movement includes, as a necessary factor, motion in the direction of such work movement.

(1) Note. These devices are commonly known as "flying cutters".

(2) Note. See section IV, Glossary, of the Class 83 Definition for the definition of "flying".

(3) Note. The direction of movement of the work, to and through the cutting zone; i.e., feed direction, is determined by the law of operation of the disclosed machine, even though the work-feed means is not claimed. Accordingly, this and the indented subclasses do not require that means to feed the work be claimed. Thus, patents for means to cut manually fed work may be included here if the other requirements of the definition are met.

(4) Note. This and the indented subclasses are limited to devices which engage the work so that cuts made by the same tool are spaced from each other or produce a nonrectilinear slot or slit. Patents for cutters which continuously engage the work, even though they have a component of motion in the direction of work-feed which has no affect on the resultant cut, such as band knives and rotary disc slitters, will be found in other areas of the schedule. The test is whether the "flying" motion has any affect on the desired shape of cut.

(5) Note. Since indented subclasses 321+ is limited to patents which disclose a tool having a cutting blade which moves in an orbital path, this subclass, (284) has been chosen as the residual repository for those patents which disclose an orbiting anvil and a cooperating nonorbiting bladed tool, and which do not disclose a feature set out in the schedule above subclass 321. SEE OR SEARCH THIS CLASS, SUBCLASS:

37+, for corresponding methods of cutting.

201, for an endless flexible band knife; and see (4) Note above.

350+, for a device in which the tool has a stroke which is timed with respect to moving work, which stroke does not have a component in the direction of work-feed at the time of cut.

469+, for a rotary disc cutter; and see (4) Note above.

SEE OR SEARCH CLASS

72, Metal Deforming,

70+, 129+, 185+, and 203+ for a "flying cutter" means in a moving work metal deforming apparatus.

82, Turning,

53.1, for a cut-off means having a motion component in the direction of work-feed.

101, Printing, appropriate subclasses, for similar apparatus for treating moving work, as by printing or embossing rather

than by cutting. 234, Selective Cutting (e.g., Punching),

50, for a selective cutting device having flying cutting tools.