MICHAEL STEPHEN FERSCHL
Pilots at Willowgate Dr, Webster, NY

License number
New York A2165609
Issued Date
Jul 2016
Expiration Date
Jul 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
530 Willowgate Dr, Webster, NY 14580

Professional information

Michael Ferschl Photo 1

Apparatus And Method For Detection Of Liquid Droplets

US Patent:
2007002, Feb 1, 2007
Filed:
Jul 28, 2005
Appl. No.:
11/191852
Inventors:
Sabrina Diol - Pittsford NY, US
Michael Ferschl - Webster NY, US
James Kircher - Mendon NY, US
International Classification:
B41J 29/393
US Classification:
347019000
Abstract:
An ink jet printer comprising an ink jet print head having at least one row of a plurality of ink ejecting ports for ejecting ink droplets along a plurality of ink droplet paths, the ink jet print head residing at a first elevation; a collimated light source and a detector each residing at a second elevation that is lower than the first elevation, the detector positioned opposite the collimated light source, the ink jet print head being movable to a test position where the at least one row of a plurality of ink ejecting ports can fire non-printing droplets, the collimated light source directing light at the detector along a light path that intersects the plurality of ink droplet paths when the print head resides in the test position; and an aperture located in between the collimated light source and detector and proximate to the detector to limit a field of view of the detector and increase an optical signal-to-noise ratio of the detector.