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Class Information
Number: 433/115
Name: Dentistry > Apparatus > Having motor or means to transmit motion from motor to tool (e.g., "engine") > Hand-held tool or handpiece > Having seal
Description: Apparatus including a substance or member employed specifically to block the passage of material into or out of the tool or handpiece.

Patents under this class:

Patent Number Title Of Patent Date Issued
8622952 System and method for pain reduction during skin puncture and breakable tip therefor Jan. 7, 2014
8579629 Dental handpiece Nov. 12, 2013
8133053 Electric motor for use in a dental, dental-medical or dental-technical handpiece and stator therefor Mar. 13, 2012
8092217 Suckback prevention device for single use high-speed turbine dental drill handpiece Jan. 10, 2012
7674850 Hardenable self-supporting structures and methods Mar. 9, 2010
7625209 Prophylactic systems for dental instruments and methods for using the same Dec. 1, 2009
6379151 Handpiece Apr. 30, 2002
6255363 Liquid inks using a gel organosol Jul. 3, 2001
6099308 Dental handpiece with dust control mechanism Aug. 8, 2000
5997296 Exploratory device with potting material Dec. 7, 1999
5921777 Dental and surgical handpiece with disposable cartridge Jul. 13, 1999
5876203 Permanently lubricated dental prophylaxis angle Mar. 2, 1999
5868571 Dental hose assembly Feb. 9, 1999
5823774 Dynamically sealed surgical drill Oct. 20, 1998
5816803 Water injection type dental handpiece Oct. 6, 1998
5692903 Exchangeable cartridge for dental handpiece Dec. 2, 1997
5683248 Autoclaving cap for dental handpieces Nov. 4, 1997
5683247 Permanently lubricated dental prophylaxis angle Nov. 4, 1997
5676542 Medical or dental treatment instrument Oct. 14, 1997
5655906 Autoclavable dental sonic scaler Aug. 12, 1997
5642995 Dental prophylaxis angle with seal protector Jul. 1, 1997
5609445 Straight motorized handpiece, in particular for medical purposes, preferably for a medical or dental laboratory Mar. 11, 1997
5599184 Protective system for dental drill units Feb. 4, 1997
5599143 Motorized handpiece, in particular for medical purposes, preferably for a medical or dental laboratory Feb. 4, 1997
5531596 Dental hand piece with water distribution system Jul. 2, 1996
5423678 Handpiece having bearing protective member Jun. 13, 1995
5267860 Dental hygiene tool with shield and germicidal seals Dec. 7, 1993
5252065 Cartridge type dental handpiece Oct. 12, 1993
5209658 Dental prophy angle May. 11, 1993
5096418 Motorized dental handpiece with fiber optic illumination Mar. 17, 1992
5074788 Device for preventing intrusion of foreign matter into dental handpiece Dec. 24, 1991
4975056 Medical, especially dental handpiece Dec. 4, 1990
4486175 Dental appliance Dec. 4, 1984
4369034 Device for preventing the ingress of water into the head of a dental contra-angle Jan. 18, 1983
4365956 Cleaning cup Dec. 28, 1982
4295830 Motorized dental handpiece Oct. 20, 1981
4292027 Sealing dental collet Sep. 29, 1981
4281989 Articulated dental hand piece Aug. 4, 1981
4253832 Dental handpiece Mar. 3, 1981
4230453 Light assembly for use with a dental handpiece Oct. 28, 1980
4225308 Pneumatic laminar motor for dental use Sep. 30, 1980
4183140 Dental stain remover Jan. 15, 1980
4182041 Dental prophylactic right angle hand piece Jan. 8, 1980

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