Patent · US Active

Linear motor for a small electric handheld device

US9300195B2 · kind B2 · utility

0Cited by

13References

11Claims

0Family size

Assignee

The Gillette Company LLC · US

Inventors

Alexander Franz Doll · Kronberg, DE
Uwe Schober · Königstein, DE
Frank Kressmann · Eschborn, DE
Frank Ziegler · Karben, DE

Key dates

Filing date	May 22, 2012
Grant date	Mar 29, 2016
Priority date	—
Expiry date	Aug 29, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH02K33/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A handle for a small electric handheld appliance in which the handle comprises a motor assembly disposed in the handle. The motor assembly comprises a generally L-shaped magnetic yoke formed from two substantially perpendicular surfaces, such that the two substantially perpendicular surfaces define a concave receiving portion. The motor assembly also comprises an iron core and a coil winding disposed substantially in the concave receiving portion, such that the iron core and the coil winding are free from contact with one of the two substantially perpendicular surfaces when the motor is at rest.

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