Patent · US Expired

Portable diagnostic device

US6851612B2 · kind B2 · utility

11Cited by
19References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 19, 2002
Grant dateFeb 8, 2005
Priority date
Expiry dateJul 19, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05B2219/23313
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A portable, preferably hand-held device is provided which may be used to test device loops in fire safety systems for short circuits, open circuits, ground faults and can test the response of the devices in the loop before or after the device loop is connected to the system.

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