Cutting by use of rotating axially moving tool – Tool or tool with support – Having axial – core-receiving central portion
Patent
1991-05-14
1992-04-28
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Tool or tool with support
Having axial, core-receiving central portion
408209, B23B 5104
Patent
active
051082357
ABSTRACT:
A hole saw arbor assembly connectable to a source of torque comprises an arbor having a first end and a second end. A power tool mount is disposed on the first end, and threads are disposed on the second end of a construction capable of mounting a hole saw thereon. A collar mount area is disposed on the arbor proximate to the second end, and a collar retraction area is disposed on the arbor proximate to the first end. A drive collar has a central bore therein, and the arbor is disposed through the central bore. The drive collar is capable of translation between the collar mount area and the collar retraction area, is rotatable about the collar retraction area independent of the arbor, and is incapable of rotation about the collar mount area independent of the arbor. Means for retaining the drive collar about the collar retraction area is disposed on the arbor. The drive collar has drive pins associated therewith, and the drive pins are insertable into apertures in the hole saw. Means for holding the drive pins within the apertures is disposed on the arbor.
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Greenlee Textron Inc.
Howell Daniel W.
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