Patent · US Active

Motor unit contactless passive operation time counter

US9875582B2 · kind B2 · utility

6Cited by

10References

20Claims

0Family size

Assignee

LIKO Research & Development AB · SE

Inventors

Andreas Bolin · Luleå, SE
Karin Olsson · Södra Sunderbyn, SE
Göran Eriksson · Hörby, SE
Nicolas Thenault · Luleå, SE
Håkan Lindholm · Sundsvall, SE

Key dates

Filing date	Mar 25, 2016
Grant date	Jan 23, 2018
Priority date	—
Expiry date	Apr 30, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01R31/343
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An apparatus is provided that measures usage of a motor unit having a motor and a motor cable leading to the motor to provide operational power to the motor. The apparatus includes a housing that attaches to the motor cable such that the motor cable passes through an interior region of the housing. A sensor is situated in the interior region of the housing and is operable to sense current that flows in the motor cable. The apparatus has a counter that logs accumulated time of operation of the motor based on an amount of time that current is sensed by the sensor to be flowing in the motor cable.

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