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:
Aug. 26, 2014
Filed:
Jul. 02, 2012
Joseph W. Grez, North Bend, WA (US);
Jeffrey R. Gueble, Bainbridge Island, WA (US);
Jerry C. Wood, Fall City, WA (US);
Devin M. Nelson, Seattle, WA (US);
Kevin A. Miller, Bellevue, WA (US);
Craig D. Hanela, North Bend, WA (US);
Bruce E. Taber, Bothell, WA (US);
Richard K. Taylor, Fall City, WA (US);
William Bryant, North Bend, WA (US);
Scott E. Hall, Issaquah, WA (US);
Andreas Lolbneggar, Bellevue, WA (US);
Piet C. J. Van Rens, Eindhoven, NL;
Kurt Sadek, Klagenfurt, AT;
Paul L. W. M. Barten, Horn, NL;
D. I. Stephan Leitner, Kappel, AT;
Joseph W. Grez, North Bend, WA (US);
Jeffrey R. Gueble, Bainbridge Island, WA (US);
Jerry C. Wood, Fall City, WA (US);
Devin M. Nelson, Seattle, WA (US);
Kevin A. Miller, Bellevue, WA (US);
Craig D. Hanela, North Bend, WA (US);
Bruce E. Taber, Bothell, WA (US);
Richard K. Taylor, Fall City, WA (US);
William Bryant, North Bend, WA (US);
Scott E. Hall, Issaquah, WA (US);
Andreas Lolbneggar, Bellevue, WA (US);
Piet C. J. van Rens, Eindhoven, NL;
Kurt Sadek, Klagenfurt, AT;
Paul L. W. M. Barten, Horn, NL;
D. I. Stephan Leitner, Kappel, AT;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A method for tuning resonant spring assembly systems used in appliances such as power toothbrushes, particularly leaf spring systems, includes the step of measuring the frequency-dependent amplitude of the appliance workpiece, and then removing a portion of the spring member so as to decrease its spring rate sufficiently that the resonant frequency of the spring member closely approximates the drive frequency of the appliance.