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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.:

US 11497590 B1

PDFFull Text
Date of Patent:
Nov. 15, 2022

Filed:

Mar. 09, 2020

Power toothbrush with added inertia resonant system

Applicant:

Koninklijke Philips N.v., Eindhoven, NL;

Inventors:

Lane Evan Kleppen, Seattle, WA (US);

Scott Robert Wills, Shoreline, WA (US);

Assignee:

KONINKLIJKE PHILIPS N.V., Eindhoven, NL;

Attorney:
Primary Examiner:

Adam D Rogers

Int. Cl.
CPC ...
A61C 17/34 (2006.01); A61C 17/32 (2006.01); F16F 7/10 (2006.01); H02K 7/14 (2006.01); H02K 7/02 (2006.01); F16F 15/30 (2006.01); A46B 13/02 (2006.01); F16F 15/22 (2006.01); F16F 15/315 (2006.01);
U.S. Cl.
CPC ...
A61C 17/3418 (2013.01); A46B 13/02 (2013.01); A61C 17/32 (2013.01); A61C 17/34 (2013.01); F16F 15/22 (2013.01); A46B 13/023 (2013.01); F16F 7/10 (2013.01); F16F 15/30 (2013.01); F16F 15/3153 (2013.01); H02K 7/02 (2013.01); H02K 7/145 (2013.01); Y10T 74/2121 (2015.01);
Abstract

An added inertia resonant system () for a power toothbrush () comprises a drive shaft (), a drive system (), and at least one inertial weight member (). The drive shaft () has a principal axis () that defines a center of rotation. The drive system () imparts a reciprocating motion to the drive shaft () about the principal axis (). The at least one inertial weight member () couples to the drive shaft () and comprises a planar material having a complex shape balanced along an x-, y- and z-axis to enable the drive system () to achieve low power, high amplitude motion of the drive shaft () when placed under user loading. A method for providing added inertia in a resonant system for a power toothbrush is also disclosed.

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