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Class Information
Number: 433/84
Name: Dentistry > Apparatus > Having intra-oral dispensing means > Combined with or attachment for work contacting tool or handpiece therefor > Power-driven tool having fluid control valve for dispensed material
Description: Apparatus wherein the dispensed material is liquid or gaseous and means are provided to regulate the flow through the discharge outlet.










Sub-classes under this class:

Class Number Class Name Patents
433/85 On or adjacent handpiece or handle 42


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8539980 Device for controlled operation of a surgical or dental drive unit Sep. 24, 2013
8500447 Medical handpiece with pulsed illumination Aug. 6, 2013
8408483 Adjustable flow regulator for dental water jet Apr. 2, 2013
8123522 Dental handpiece fluid supply technology Feb. 28, 2012
8012111 Oral hygiene device Sep. 6, 2011
7575432 Torque transmission for a surgical or dental rotating tool Aug. 18, 2009
7217127 Switching device for irrigation fluids in a dental handpiece May. 15, 2007
7160108 All-in-one prophy angle Jan. 9, 2007
7131838 Dental apparatus and fluid reservoir for the same Nov. 7, 2006
6939535 Method and apparatus for preventing tooth decay Sep. 6, 2005
6902337 Dentifrice dispensing electrical toothbrush Jun. 7, 2005
6783365 Dental handpiece having internal filter unit Aug. 31, 2004
6766549 Toothbrush system with a three-dimensional brushing action and fluid irrigation Jul. 27, 2004
6729942 Dental abrasion system May. 4, 2004
6439966 Hand-holdable gas/abrasion apparatus Aug. 27, 2002
6315557 Rotary dental instrument and methods of use Nov. 13, 2001
6290498 Water valve for dental handpiece Sep. 18, 2001
6270342 Dental laser treatment hand-piece and system Aug. 7, 2001
6264666 Water jet for dermatological treatment Jul. 24, 2001
6247929 Oral irrigator handle assembly having a pressure control valve and stop valve assembly Jun. 19, 2001
6196841 Filter for spray ducts of dental or surgical handpieces Mar. 6, 2001
6179614 Dental instrument and processes Jan. 30, 2001
6099306 Tooth powdering applicator Aug. 8, 2000
6086368 Portable air-driven dental apparatus and methods Jul. 11, 2000
6019905 Process for sanitizing chlorinated water Feb. 1, 2000
5944521 Tooth powdering applicator Aug. 31, 1999
5944520 Dental hand piece with internal back flow prevention valve Aug. 31, 1999
5934904 Dental instrument and processes Aug. 10, 1999
5927976 Medication injection device and method Jul. 27, 1999
5899692 Illuminated syringe tip and handpiece assembly May. 4, 1999
5871353 Prophy angles with dentifrice dispensing systems Feb. 16, 1999
5762495 Surgical instrument particularly for dental surgery Jun. 9, 1998
5709546 Water sanitizing system and process Jan. 20, 1998
5593304 Dental apparatus including multiple-use electrically-oscillated handpiece Jan. 14, 1997
5482462 Dental handpiece Jan. 9, 1996
5464350 Dental handpiece with a check valve Nov. 7, 1995
5407352 Transparent dental tube unit Apr. 18, 1995
5338194 Medical treatment device and method for cleaning a flexible tube line Aug. 16, 1994
5275558 Dental handpiece, bur mount operating system Jan. 4, 1994
5261816 Dental handpiece coolant delivery system Nov. 16, 1993
5252067 Handpiece for dental medical treatment Oct. 12, 1993
5203698 Wet foam sandblaster Apr. 20, 1993
5186625 Control for dental air-polisher Feb. 16, 1993
5145367 Vacuum instrument for dental hygiene and dental treatment Sep. 8, 1992
5096421 Dental bur cooling system Mar. 17, 1992
5078601 Device and process for dentistry hand or angle pieces Jan. 7, 1992
5069620 Dental handpiece Dec. 3, 1991
5044952 Device to prevent water stagnation in dental supply circuits Sep. 3, 1991
5006067 Drip preventing device for dental instruments Apr. 9, 1991
4975056 Medical, especially dental handpiece Dec. 4, 1990

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