Patent · US Active

Voltage indication device

US11280815B2 · kind B2 · utility

2Cited by

3References

16Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Gunther Stollwerck · Krefeld, DE
Harald Westkamp · Hattingen, DE
Mark Gravermann · Erkelenz, DE
Jens Weichold · Erkelenz, DE

Key dates

Filing date	Jan 22, 2019
Grant date	Mar 22, 2022
Priority date	—
Expiry date	Jan 22, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01R19/155
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Voltage indication device (2), attachable to a medium-voltage separable plug having a rear insert comprising a coupling electrode. The voltage indication device comprises a body (241) and a voltage detector (251) having a ground contact (361), a voltage contact (261) for electrical connection to the coupling electrode; and an indicator for visually indicating presence of the medium voltage in the separable plug. The body comprises an elastically expandable support portion (406) for resiliently supporting the voltage detector (251).

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