Patent · US Expired

Sewing machine with a ventilation wheel and a rotation speed sensor attached to an electric motor

US6427614B1 · kind B1 · utility

0Cited by

4References

4Claims

0Family size

Inventors

Michael Bott · Karlsruhe, DE
Uwe Winkler · Ettlingen, DE

Key dates

Filing date	Sep 20, 2001
Grant date	Aug 6, 2002
Priority date	—
Expiry date	Sep 20, 2021

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD05B69/24
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

In connection with an electric motor (12) used for operating a sewing machine, which has a fan wheel (17) and a speed sensor (25), the fan wheel (17) and the screen disk (18) of the speed sensor (25), as well as a belt pulley (19) of the belt drive (10), are combined into a multi-function wheel (15).

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