The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 31, 2018
Filed:
Mar. 10, 2014
Koninklijke Philips N.v., Eindhoven, NL;
Yu-Wen Chang, Mercer Island, WA (US);
Gregory Russ Goddard, Kenmore, WA (US);
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
An oral care appliance comprises an gas-liquid cleaning assembly which comprises a fluid pump assembly (); a source of liquid (); and a source of gas(). The pump is in operative communication with the sources of liquid and gas to produce a series of gas-injected fluid pulses, directed to a nozzle assembly () from which the resulting pulses are directed to the teeth by a user. The individual pulses have a pulse width within the range of 0.001-0.5 seconds, a pulse height from 0.1-10 Newtons, a rise/fall time range of 0.5-250 ms, a repetition rate in the range of 2 Hz to 20 Hz. The gas/liquid mixture range from 40-95% volume to volume, gas to liquid. The appliance also includes a mechanical teeth cleaning assembly, in combination with the gas-liquid assembly. The mechanical assembly includes a drive system () and a brush assembly in operative contact with the drive system, the brush assembly having a set of bristles () at the distal end thereof, wherein in operation, the nozzle assembly is positioned within the brush assembly.