Koninklijke Philips Corporation N.v.

Creator Technology B.v.

Piet C J Van Rens

Joseph W Grez

Kevin Arnold Miller

Richard Taylor

Scott E Hall

Bruce E Taber

Craig D Hanela

William E Bryant

Jerry Wood

Jeffrey Raymond Gueble

Kurt Sadek

D I Stephan Leitner

Devin M Nelson

Henricus J Ligthart

David J E Bemelmans

Andreas Loibnegger

Raymond W Lafarre

Paulus L W M Barten

Andreas Lolbneggar

Paul L W M Barten

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

A wrap display system employs a stick (), and a flexible unit display () having an integration of a flexible display () and a display cover () that are structurally configured to be wrapped around the stick (). A holdout mechanism () can integrated with the flexible display () and the display cover () to fix the flexible display () in a readable position with respect to the stick () in response to the flexible display () being unwrapped from the stick ().

Wrap display system having a flexible display

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.

Tension mask and frame with mechanical connection means

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Eindhoven, Netherlands

Piet C J Van Rens