US PATENT SUBCLASS 483 / 39
.~.~.~.~ Plural tool holders pivotable about common axis

Current as of: June, 1999
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483 /   HD   TOOL CHANGING

16  DF  INCLUDING MACHINE TOOL OR COMPONENT {3}
30  DF  .~ Rotary spindle machine tool (e.g., milling machine, boring, machine, grinding machine, etc.) {3}
36  DF  .~.~ Tool changer between spindle and matrix {3}
38  DF  .~.~.~ Including tool holder pivotable about axis {5}
39.~.~.~.~ Plural tool holders pivotable about common axis {4}
40  DF  .~.~.~.~.~> Including intermediate tool changer {1}
42  DF  .~.~.~.~.~> Tool holders pivotable with respect to each other
43  DF  .~.~.~.~.~> Tool holders pivotable about plural nonparallel axes
44  DF  .~.~.~.~.~> Linearly movable tool holders {2}

DEFINITION

Classification: 483/39

Plural tool holders pivotable about a common axis:

(under subclass 38) Apparatus wherein the transfer means

comprises more than one implement gripping means rotatably mounted for simultaneously advancing more than one implement during transfer along circular arcs centered about the pivot axis.