 |
|
|
|
|
|
 Title: |
US5262612:
Computer-controlled laser cutter
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
Momany, Patrick J.; Seattle, WA
Tinney, James; Seattle, WA
|
| Assignee: |
Edgewise Tools, Inc., Norco, CA
other patents from EDGEWISE TOOLS, INC. (696631) (approx. 2)
News, Profiles, Stocks and More about this company
|
| Published / Filed: |
1993-11-16
/ 1992-04-29
|
| Application Number: |
US1992000875799
|
| IPC Code: |
Advanced:
B23K 26/10;
B23K 26/14;
Core:
more...
IPC-7:
B23K 26/14;
|
| ECLA Code: |
B23K26/10; B23K26/14; B23K26/14N;
|
| U.S. Class: |
Current:
219/121.67;
219/121.82;
700/166;
Original:
219/121.67;
219/121.82;
364/474.08;
|
| Field of Search: |
219/121.67,121.72,121.73,121.82,121.67,121.78
364/474.08
|
| Priority Number: |
| 1992-04-29 |
US1992000875799 |
|
| Abstract: |
A laser beam generator is mounted stationarily relative to a sheet roll feed mechanism of the type used in roll feed drafting plotters so as to project a laser beam lengthwise of the crossrail of such feed mechanism. A right angle reflecting and focusing assembly is mounted on a carriage moveable along the crossrail for directing the laser beam toward a sheet positioned by the feeder. The sheet is moved in one axis (the x-axis) by the roll feed mechanism, while the reflecting and focusing assembly is moved in the other axis (y-axis) by the carriage-all under computer control. On-off signals for the laser are derived from the pen up, pen down signaling mechanism of the plotter so that a design or pattern is cut in the sheet as though the plotter were drawing a drafting pattern. Mechanism is provided to calculate the actual speed of the focused laser beam relative to the sheet being cut and to adjust the power output of the laser automatically so that a uniform cut is achieved. Inert gas under pressure is supplied to the area of the cut in synchronism with actuation of the laser.
|
| Attorney, Agent or Firm: |
Christensen, O'Connor, Johnson & Kindness ;
|
| Primary / Asst. Examiners: |
Albritton, C. L.;
|
| Maintenance Status: |
CC Certificate of Correction issued
|
| INPADOC Legal Status: |
Show legal status actions
|
| Family: |
None
|
First Claim:
Show all 22 claims |
We claim:
1. A computer-controlled cutter for cutting a desired pattern in a workpiece comprising means for generating a laser beam, means for positioning the workpiece, means for mounting said generating means substantially stationarily relative to said workpiece-positioning means, means for directing the laser beam generated by said generating means onto the workpiece to cut it, means mounting said directing means in the path of the laser beam generated by said generating means but moveable lengthwise of said beam and relative to said positioning means for changing the location of the directed laser beam relative to the workpiece so as to change the area of the workpiece acted on by said directed laser beam, means for automatically controlling actuation of said generating means in combination with movement of said means mounting said beam-directing means to cut the desired pattern in the workpiece, means for detecting the speed of movement of the directed laser beam relative to the workpiece, and means for adjusting the power output of said laser beam generating means as a function of the detected speed.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| Forward References: |
Show 17 U.S. patent(s) that reference this one
|
