Douglas Allen Barnett
Dentist in Beaverton, OR

License number
Utah 138650-9921
Issued Date
Jan 1, 1910
Expiration Date
May 31, 2004
Category
Dental
Type
Dentist - Anesthesia Class I Permit
Address
Address
Beaverton, OR

Professional information

Douglas Barnett Photo 1

Snap-In Collimator Device

US Patent:
5579365, Nov 26, 1996
Filed:
Apr 5, 1994
Appl. No.:
8/223289
Inventors:
Raymond G. Jacobs - Wauconda IL
Douglas A. Barnett - Beaverton OR
International Classification:
G21K 102
US Classification:
378147
Abstract:
For use with dental position indicating devices for dental x-ray machines that are collimated and are of round transverse cross sectional configuration defining a bore for the length of same, with such bore having its internal surfacing lined for x-ray absorption and having an x-ray emitting end, a snap-fit collimator device therefor for use with rectangular dental instrumentation that is in the form of a body providing a collimator of rectangular form in the size of such instrumentation, with the body being arranged for snap-fit mounting of same on the x-ray emitting end of such round type position indicating devices, with the arrangement involved providing for rotational adjustment of said body relative to such position indicating device for permitting the collimator of same to be aligned with rectangular dental instrumentation, when the position indicator device in question is secured to an x-ray machine in the course of practicing dental radiography.