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:
Nov. 12, 2013
Filed:
Dec. 09, 2009
Hendrik Richard Jousma, Groningen, NL;
Johannes Hotze Bernhard DE Vries, Groningen, NL;
Hendrik Richard Jousma, Groningen, NL;
Johannes Hotze Bernhard De Vries, Groningen, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
The dental cleaning appliance includes an appliance body () which has a bristle field housing () and fluid within the housing. A flexible membrane () is positioned within the housing, or in a fluid-tight relationship () within an opening () in the housing. A fluid pressure system involving either a dual piston system () or a pump and valve system () provides pressure on the fluid, wherein the pistons move alternately, or the valves open and close alternately, in such a manner to produce alternating pressure above and beneath the membrane, moving the membrane and the bristle field toward and away from the teeth.