Patent · US Active

Small electrical appliance with protective circuit

US12296495B2 · kind B2 · utility

0Cited by

3References

19Claims

0Family size

Assignee

The Braun Corporation · DE

Inventors

Thomas Verstege · Frankfurt am Main, DE
Frank Stefan Skopp · Wiesbaden, DE
Marius Beat Hanner · Oberursel, DE
Uwe Schober · Königstein, DE

Key dates

Filing date	Mar 9, 2021
Grant date	May 13, 2025
Priority date	—
Expiry date	Jul 14, 2042

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB26B19/282
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The present invention relates to the field of small electrical appliances such as battery powered electrical appliances for personal hygiene, in particular to a hair removal device such as an electric shaver or epilator as well as an electric toothbrush. The small electrical appliance comprises an electric load, wherein the electric load heats up during operation; a measuring circuitry for measuring an electrical parameter of the electric load; a temperature sensor arranged spatially separated from the electric load; and control circuitry adapted to protect the electric load from overheating by controlling the electric load based on the electrical parameter of the electric load and an output of the temperature sensor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.