Koninklijke Philips Corporation N.v.

Jerry Wood

Joseph W Grez

Kevin Arnold Miller

Richard Taylor

Scott E Hall

Bruce E Taber

William E Bryant

Craig D Hanela

Piet C J Van Rens

Jeffrey Raymond Gueble

Kurt Sadek

D I Stephan Leitner

Devin M Nelson

Paulus Cornelis Duineveld

Bart Johannes Massee

Wolter F Benning

Jozef Johannes Maria Janssen

Craig Kortick Black

Duane B Kutsch

Petrus Henricus De Leeuw

Garrett Kotlarchik

Andreas Loibnegger

Peter Alexander Wachters

Paul Bas

Paul L W M Barten

Andreas Lolbneggar

Paulus L W M Barten

Katrina Rockey

Joe Grez

Bart J Massee

Craig Black

Katrina Rocket

Piet De Leeuw

The spray assembly for a droplet spray teeth cleaning system includes a guidance member at the end thereof. The spray assembly includes a nozzle through which a spray of liquid is directed to the teeth for cleaning. The guidance member is configured and mounted relative to the nozzle to provide a selected standoff distance between the nozzle and the teeth and includes a portion which is configured to fit in the interproximal space between adjacent teeth and gums, or against the frontal portions of the teeth, so that the user knows the location of the spray relative to the teeth.

Locating/guidance tip assembly for a liquid droplet spray teeth cleaning system

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.

Apparatus for converting side-to-side driving motion to rotational motion with a spring assembly and system for tuning the spring assembly

The resonator assembly for a power toothbrush includes an elongated solid rod made from stainless steel, having a back assembly which includes permanent magnets which interact with an electromagnet in a drive system in the handle of the toothbrush to produce a transverse motion of the rod. A mount member is connected to the rod at a selected point along its length, and is mounted to a toothbrush housing so that the rod resonates about the mount member at a selected frequency.

Mounted beam brushhead for transverse drive power toothbrush

The apparatus for converting side-to-side to rotational motion for a workpiece includes a spring assembly with a movable base mounting element which is driven in a slightly arcuate reciprocal side-to-side motion and a fixed mounting element spaced apart from the base element and mounted in the appliance so that it does not rotate or move in operation of the apparatus. A spring member, such as two planar leaf springs positioned at an angle to each other, is mounted between the movable base element and the fixed mounting element. A drive shaft member extends from the movable base element through the fixed mounting element and beyond. A workpiece such as a brushhead is mounted on the distal end of the drive shaft. The spring member is configured so that it is substantially less resistant to twisting action than bending action, such that the side-to-side motion of the base element results in rotation of the workpiece. 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.

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Fall City, WA, United States of America

Jerry Wood