Milling machine with mill head having retractible return
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United States of America Patent
Stats
-
Oct 8, 1991
Grant Date -
N/A
app pub date -
Nov 9, 1990
filing date -
Nov 9, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A milling machine for cutting a surface on a workpiece and including a milling head assembly having a cutting stroke for cutting the surface of the workpiece and a return stroke to prepare for the next cutting stroke, the milling head assembly including a rotatable spindle structure with a cutter structure mounted to the spindle structure for rotation therewith and being actuable to provide a desired cut on the workpiece surface and a piston and cylinder construction operatively connected with the cutter structure to axially position the cutter structure separately from the spindle structure between an advanced position to provide a desired cut on the workpiece surface and a retracted position relative to the workpiece surface to preclude cutting engagement with the workpiece surface as the cutter structure is moved in opposite directions traversing the workpiece surface and a unique method providing a rough cut on the workpiece surface when the cutter structure is in the retracted position and a finish cut when the cutter structure is in the advanced position and actuating the cutter structure to the retracted position for the return stroke after the finish cut.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
| Patent Owner | Address | |
|---|---|---|
| PRACTICAL ENGINEERING INC | 16700 COMMON RD ROSEVILLE MI 48066 |
International Classification(s)
Inventor(s)
| Inventor Name | Address | # of filed Patents | Total Citations |
|---|---|---|---|
| Habarth, Richard A | Allen Park, MI | 3 | 13 |
| Wawrzyniak, Walter W | Mt. Clemens, MI | 15 | 70 |
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| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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