Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Casings
Patent
1989-06-26
1990-07-17
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Casings
361392, G01R 104
Patent
active
049423568
ABSTRACT:
The modular electronic device includes a main unit and at least one plug-in module adapted to be removably slid on to and mounted on the main unit. There are first and second interfitting connectors respectively on the main unit and the module which automatically interfit when the module is mounted. First and second interfitting track structure are respectively on the module and main unit to facilitate sliding the module onto the main unit. Finally, there is first and second interfitting latching elements respectively on the main unit and the module to hold the module latched in place.
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Ellingen David R.
Michalski Steven E.
Mieczkowski Daniel
Pacetti Larry D.
Eisenzopf Reinhard J.
Regan Maura K.
Snap-on Tools Corporation
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