The Gillette Company

Dominik Jueling

Alexander Tessmann

Viktor Kraft

Alexander Hiller

Judith Von Dahlen

Judith Habermann

Judith VonDahlen

Martin Weschta

Madeleine Ehrmann

Victor Kraft

An electronic personal care device with a housing defining a sealed cavity. A power source positioned within the sealed cavity of the housing. A first circuit board is positioned within the sealed cavity of the housing. A second circuit board positioned outside the sealed cavity and in electrical connection with the power source. A light guide is mounted to the second circuit board. The light guide having a body defining an opening. A light source is positioned within the opening, spaced apart from the light guide and mounted to the circuit board. A transparent adhesive layer is positioned around the light source and on the second circuit board forming water tight seal.

Electronic personal care device

A method of resetting a digital counter for a personal care appliance by sending an electrical output signal from an optical sensor to a control circuit. The electrical output signal is compared to a predetermined value with the control circuit or a change in the electrical output signal from the optical sensor is detected over time. A signal is sent to a consumer user interface by the control circuit based on the electrical output signal and the predetermined value or based on the change in the electrical output signal from the optical sensor. The digital counter is reset based on an input signal from the consumer user interface.

Method of resetting a digital counter for a personal care appliance

A personal care appliance with a handle having a coupler at a first end. A control circuit is positioned within the handle. A consumer user interface is operably connected to the control circuit. A digital counter is operably connected to the control circuit. An optical sensor is mounted to the coupler that sends an electrical output signal to the control circuit. A cartridge is removably mounted to the coupler. The cartridge has an opaque surface covering the optical sensor and blocking ambient light from reaching the optical sensor when mounted to the coupler. The control circuit determines an attachment status of the cartridge by comparing the electrical output signal to one or more predetermined thresholds or by detecting a change over time in the electrical output signal of the optical sensor.

Personal care appliance

Growing community of inventors

Schmitten, Germany

Dominik Jueling