Braun Gmbh

Heiko Bornheimer

Tilmann Winkler

Armin Schwarz-Hartmann

Philipp Jung

Joachim Lepper

Hauke Schormair

Thomas Willi Fritsch

Peter Trawinski

Martin Haas

Joern Utsch

Michael Schmid

Michael Stolper

Ingo Vetter

Florian Baier

Manfred Ringelmann

An electric toothbrush is disclosed. The toothbrush includes a housing; a brush; an electric motor for driving the brush; a power supply for providing the electric power required for operation of the toothbrush; a switch mechanism for turning the drive on and off; and an electronic circuit for adjusting the effective voltage (U) applied to the electric motor. In operation, a voltage supplied by the power supply declines with the discharge status of the power supply from a high-voltage range to a low-voltage range. During operation of the toothbrush in the high-voltage range (H), the effective voltage (U) applied to the electric motor is lowered to a level at which the electric motor has reached a rotational speed corresponding essentially to the rotational speed of the electric motor in the medium-voltage range.

Electric toothbrush

An electric toothbrush is provided, the electric toothbrush having a housing, with a drive that is elastically mounted on the housing by means of a spring device and can be moved in an oscillatory fashion in at least one plane of motion, and with a transmission element that is connected to the drive and serves for transmitting the driving motion to a brush head.

Toothbrush handle

A battery contact spring with a spring body manufactured as a flexible wire part is disclosed. The battery contact spring has a first contact head section for contacting a first battery; a second contact head section for contacting a second battery, and at least one first spiral spring section that extends between a spring foot area and the first contact head section and which flexibly supports the first contact head section. The spring body is designed in such a way that a coil end of the first spiral spring section opposite the spring foot area crosses over into the first contact head section and attached to this first head section is a connection bridge that crosses over into the second contact head section.

Battery contact springs

Packaging for toothbrush

Growing community of inventors

Wiesbaden, Germany

Heiko Bornheimer