Career records & work history
License Records
Leonard Rzewinski
Address:
14 Long Bow, Wading River, NY 11792
Licenses:
License #: A1650252
Category: Airmen
Category: Airmen
Leonard J Rzewinski Deceased20 Willow Rd, New Hyde Park, NY 11040
Leonard Rzewinski Phones & Addresses
20 Willow Rd, New Hyde Park, NY 11040 (516) 354-7848
Middle Island, NY
Southport, NC
Wading River, NY
Mentions for Leonard J Rzewinski
Publications & IP owners
Us Patents
Dental Cleaning Apparatus And Method
US Patent:
4494932, Jan 22, 1985
Filed:
Feb 18, 1983
Appl. No.:
6/467916
Inventors:
Leonard Rzewinski - New Hyde Park NY
Assignee:
Cooper LaserSonics, Inc. - Santa Clara CA
International Classification:
A61C 302
US Classification:
433 88
Abstract:
An improved apparatus for dispensing cleaning powder in an air stream to be directed onto the surface of teeth includes a fluid-tight chamber for containing a supply of cleaning powder and having an open space above the powder, with an elongated tube mounted in the chamber and having a bottom end adjacent the bottom of the chamber and an open top end above the powder supply in the chamber, and with openings in the tube permitting limited flow of powder into the tube by gravity. Air under pressure is directed into the bottom of the tube to entrain the powder and discharge it in an air-powder stream from the open top of the tube. An outlet in the sidewall of the chamber permits air and powder to flow out under pressure, and a movable deflection member deflects the stream of air and entrained powder from the open top of the tube above the powder supply and generally toward the outlet.
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