Electric heating – Metal heating – By arc
Patent
1992-06-11
1994-11-08
Albritton, C. L.
Electric heating
Metal heating
By arc
21912168, 21912169, 360135, B23K 2616
Patent
active
053629418
ABSTRACT:
The current invention provides an apparatus and method of collecting waste materials produced during laser etching of a floptical medium without blocking access to the medium surface. The invention also improves collection efficiency by applying a uniform low-pressure air around the outer edge of the medium. Because the air pressure is applied around the edge, there is no necessity to coordinate a movement or timing of the current invention with respect to the laser etching unit.
REFERENCES:
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patent: 5120927 (1992-06-01), Williams et al.
Y. Y. Fan and V. M. Huynh, "Investigation of Light Scattering From Rough Periodic Surfaces-Numbered Solutions", Dept. of Mech. Eng. Univ. of Windsor, Ontario, Mar. 1992.
J. Mazumder, "Overview of Melt Dynamics in Laser Processing", Optical Engin., vol. 30, No. 8, pp. 1208-1219, Aug. 1991.
M. W. Sasnett and T. F. Johnston, Jr., "Beam Characterization and Measurement of Propagation Attributes", Laser Beam Diagnostics, SPIE vol. 1414, Los Angeles 1991.
F. Jorgensen, "The Complete Handbook of Magnetic Recording" 3rd Edition, TAB Books, Inc., Blue Ridge Summit, Pa. 1988.
Bero James
Heitzman Jeff
Johnson Paul R.
Albritton C. L.
Iomega Corporation
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