MARK PETER POULLOS
Pilots at Woodacre Dr, Grand Prairie, TX
License number
Texas A1519341
Issued Date
May 2016
Expiration Date
May 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
521 Woodacre Dr, Grand Prairie, TX 75052
Professional information
Dual Laser Coating Apparatus And Process
US Patent:
7661387, Feb 16, 2010
Filed:
Jan 31, 2005
Appl. No.:
11/045070
Inventors:
Mark Poullos - Grand Prairie TX, US
Assignee:
Dunfries Investment Limited - Jersey, C.I.
International Classification:
B05C 11/00, B05B 5/00, B05C 19/00
US Classification:
118667, 118641, 118642, 118308
Abstract:
An apparatus for applying and fusing a powder coating to substrates of various composition uses two lasers to accurately heat the coating to the optimum temperature. A second laser has less power and heats a smaller area than the first laser. Temperature control is enhanced by the ability to superheterodyne two lasers at separate frequencies. This allows for better absorption of certain materials being fused by the laser. Another common problem associated with laser processing occurs as the polymer heats up. During the heating process the spectral lines are Doppler broadened and slightly shifted. This can affect the absorption of a laser of a fixed wavelength. With the present invention, the optimum laser frequency can be turned to a more optimum frequency for absorption still with sufficient power for fast efficient thermal processing.