Cutting by use of rotating axially moving tool – Tool or tool with support – Having axial – core-receiving central portion
Reexamination Certificate
2006-07-11
2006-07-11
Howell, Daniel W. (Department: 3722)
Cutting by use of rotating axially moving tool
Tool or tool with support
Having axial, core-receiving central portion
C408S23900A
Reexamination Certificate
active
07073992
ABSTRACT:
An arbor is provided for a hole cutter having an outer surface defining a threaded hole, and a pair of pin holes spaced radially relative to the threaded hole. The arbor has an arbor body defining a threaded end portion threadedly engageable with the threaded hole of the hole cutter, a stop surface formed adjacent to the threaded end portion and spaced radially outwardly therefrom; a drive shank located on another end portion of the arbor body; and a pair of first bearing surfaces located on opposite sides of the arbor body relative to each other and extending axially along a portion of the arbor body between the stop surface and drive shank. A pin ring has an aperture formed therethrough for slidably receiving the arbor body; a pair of drive pins; a second bearing surface that is abuttingly engageable with the hole cutter with the pins received within the corresponding pin holes of the hole cutter; and a pair of third bearing surfaces that are engageable with the first bearing surfaces of the arbor body for preventing relative rotation of the pin support member and arbor body, and are movable axially over the stop surface of the arbor body and engageable with the major diameter of the threaded end portion of the arbor body.
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International Search Report of International Application No. PCT/US04/20402 Filing Date Jun. 24, 2004 report dated Apr. 6, 2005.
Written Opinion of International Application No. PCT/US04/20402, Filing Date Jun. 24, 2004 Written Opinion dated Apr. 6, 2005.
Korb William B.
O'Keefe Charles M.
Howell Daniel W.
Irwin Industrial Tool Company
McCarter & English LLP
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