Digital multimeters including a ruggedized jacket
US8755173B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2009 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Jun 3, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D11/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A digital multimeter includes a display for displaying a measured parameter, a selector for selecting the measured parameter, at least one jack configured to receive a test lead plug, and a housing assembly including the display, the selector and the jack. The selector includes a push button, a rotary selector switch, a knob coupled to the rotary selector switch, and a cover molded over the knob. The cover includes a relatively soft material compared to the knob. The housing assembly includes a first and second housing portions coupled together, a gasket sealing the first and second housing portions, and a jacket overlying parts of the first and second housing portions and the gasket. The housing assembly defines an internal cavity and is configured to absorb impact energy in response to dropping the digital multimeter up to approximately one meter and protect against water and dust ingress into the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.