US PATENT SUBCLASS 83 / 469
ROTATABLE DISC TOOL PAIR OR TOOL AND CARRIER

Current as of: June, 1999
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83 /   HD   CUTTING

469ROTATABLE DISC TOOL PAIR OR TOOL AND CARRIER {11}
471  DF  .~> With means to support work relative to tool(s) {6}
478  DF  .~> With guard for tool
479  DF  .~> Optional tool pairs alternatively operative {1}
481  DF  .~> With means to permit replacement of tool
482  DF  .~> Means to separate elements of tool pair
483  DF  .~> Carrier for rotatable tool movable during cutting {3}
491  DF  .~> Means to rotate or oscillate tool {1}
495  DF  .~> Tool pair comprises rotatable tools {6}
508  DF  .~> Tool pair comprises rotatable tool and nonrotatable tool
508.1  DF  .~> Tool element selectively operative
508.2  DF  .~> Tool element mounted for adjustment {1}

DEFINITION

Classification: 83/469

(under the class definition) Device provided with a cutter comprising a circular member mounted for rotation (unidirectional or oscillatory) about its central axis of rotation, having a work-cutting edge on or adjacent the periphery of said member, which edge cuts in a plane which is both substantially co-extensive with a radial face (or a radial plane) of said member and perpendicular to the axis of

rotation of said member, and, as disclosed, cuts in a continuous line during the cutting operation of the cutter, and including (a) a holder for mounting or supporting said cutter for rotation, which holder does not partake of said rotation, or (b) a second cutter in close proximity to and in cooperative cutting relation with said circular cutter whereby work passed between the cutters in contact with the edge of the circular cutter and a mating edge or surface of the second cutter will be cut through thicknesswise in the plane of cutting.

(1) Note. The individual patents directed to devices of the type described in part (A) of the above definition are collected or filed in this generic subclass (469).

(2) Note. With respect to part (a) of the above definition, patents placed herein differ from the patents in Tools, subclasses 651+, especially disc type, subclass 676, in that the claims of the patents herein placed include the means about which the tool rotates, whereas tools in subclass 676 include only the tool and parts partaking of all the tool movements. For example, if the claimed disclosure includes a shaft fixed against rotation, about which shaft a disc cutter rotates, the patent would be placed herein; but if the claimed disclosure includes a shaft, to which shaft a disc cutter is secured, whereby both elements may rotate, but no fixed or bearing support for the shaft is claimed, the patents would be placed in subclasses 651+, especially subclass 676.

(3) Note. With respect to part (a) of the above definition, a holder for so mounting or supporting a rotatable circular member as defined in the main definition will, in the further description of this and indented subclasses, henceforth be termed a "Tool carrier".

(4) Note. With respect to part (b) of the above definition two cooperating cutters forming one line of cutting, at least one of which cutters is a rotatable circular member as defined will, in the further description of this and indented subclasses, henceforth be termed a "Tool pair".

(5) Note. With respect to part (b) of the above definition, the second cutter may be a disc-blade similar to the circular cutter defined, or may be a section of a circular cylinder (the disc-blade cooperating with the peripheral surface of the cylinder, see subclass 505 for example) or may be a flat anvil surface or ledger blade edge across which the disc-blade moves, (see subclasses 485+ for example), or may partake of nonrotary movements or no movement (see subclass 508 for example), or may be any other part with which the disc-blade as defined cooperates to cut work thicknesswise. (6) Note. With respect to part (b) of the above definition, (i.e., Tool pair), the definitions of the subclasses indented hereunder are written in terms of one tool pair, that is, one disc-blade cutter cooperating with one backup element (anvil,

cylinder, other-disc-blade, etc.) whereas as disclosed and claimed there may be a plurality of disc blades on a common axis (or, in the case of a cylindrical anvil of subclass 505, a single anvil having a peripheral surface common to plural discs against which surface all of the disc-blades are in cooperative relationship).

SEE OR SEARCH THIS CLASS, SUBCLASS:

284, for a "flying" cutter and see (4) Note in subclass 284.

425+, for a device having a disc-blade tool combined with means to feed work to the tool.

523+, for a cutter having axially extending edges.

SEE OR SEARCH CLASS

407, Cutters, for Shaping, for a milling cutter.