Personal hygiene device having treatment-force-measurement unit

US10433636B2 · kind B2 · utility

Assignee

• The Braun Corporation · DE

Inventors

• Jannik SCHEELE · Kelkheim, DE
• Martin Haas · Belgrade, US
• Norbert Schaefer · Frankfurt am Main, DE
• Robert Schäfer · Frankfurt, DE
• Sven Alexander Franke · Darmstadt, DE
• Uwe Schober · Königstein, DE
• Ingo Vetter · Karben, DE
• Frank Ziegler · Karben, DE

Key dates

• Filing date: May 12, 2016
• Grant date: Oct 8, 2019
• Expiry date: Sep 26, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61C17/221
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

A personal hygiene device has a handle, a treatment head mounted for relative movement of at least a portion thereof with respect to the handle against a restoring force when a treatment force is applied in at least one direction onto the treatment head, a treatment-force-measurement unit for determining the applied treatment force comprising a light-emitting element, a light-sensitive element, and a light-changing element arranged at least partly in the light path between the light-emitting element and the light-sensitive element, wherein the light-changing element and at least one of the light-emitting element and light-sensitive element are arranged to be moved relatively to each other when at least the portion of the treatment head is moved.