Hanging ammeter with removable battery cartridge
US5130642A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1991 |
| Grant date | Jul 14, 1992 |
| Priority date | — |
| Expiry date | Jun 13, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R1/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The ammeter includes a tubular housing with a hook-shaped sensor secured thereto at one end thereof and coupled to battery-powered digital ammeter circuitry disposed within the housing. The other end of the housing is open and receives telescopically therein a cylindrical cartridge which includes either a cradle or a recess supporting a replaceable battery and carrying connectors for connecting the battery to the ammeter circuitry. A universal spline coupler is telescopically received in a bore in the cartridge and projects from the tubular housing when the cartridge is disposed therein for coupling to associated equipment, such as a hot stick.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.