Patent · US Active

Device for protecting electric motors

US7460022B2 · kind B2 · utility

0Cited by

6References

18Claims

0Family size

Assignee

Bosch Rexroth Corporation · DE

Inventors

Ingolf Gröning · Lohr am Main, DE
Johannes Schelbert · Rieneck, DE

Key dates

Filing date	Mar 13, 2006
Grant date	Dec 2, 2008
Priority date	—
Expiry date	Dec 4, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH02K11/25
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A device for the explosion protection of electric motors or similar electrical devices such as pumps, in which the motor has a protective housing and works together with an interconnected sensor accommodated in a separate protective housing. A favorable construction is achieved in that the motor protection housing and the sensor protection housing are configured for protection classes of different levels, the lower protection class being provided for the motor protection housing, and the higher protection class being provided for the sensor protection housing, and the protective device being provided for the lower protection class.

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