Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Having tool-opposing – work-engaging surface
Reexamination Certificate
2006-06-28
2009-12-15
Howell, Daniel W (Department: 3726)
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Having tool-opposing, work-engaging surface
C408S103000, C408S130000, C408S234000, C408S24100G
Reexamination Certificate
active
07632048
ABSTRACT:
A reaming machine includes a machine body; a retractable fixture installed above the machine body and used to press against a workpiece and fix the workpiece; and a vertical wall disposed inside the machine body. Two slide rods are installed to the vertical wall. A slide seat is slidably coupled to the two slide rods. A driving source is fixed to the slide seat. A piston rod is installed to the bottom of the slide seat. A hydraulic cylinder enables the piston rod to move telescopically. The piston rod further enables the driving source to move up and down. A tool seat is installed to the driving source. A reamer is installed at the top of the tool seat and can ream a hole on the workpiece. As the reamed hole faces downward, the wooden dust and debris generated in reaming will fall into the interior of the machine body.
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Howell Daniel W
Kamrath Alan
Kamrath & Associates PA
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