Electrical connectors – With indicating or identifying provision – Connection indicating provision
Reexamination Certificate
2007-08-14
2010-02-02
Abrams, Neil (Department: 2839)
Electrical connectors
With indicating or identifying provision
Connection indicating provision
C324S115000, C340S687000
Reexamination Certificate
active
07654857
ABSTRACT:
A multimeter for testing a plurality of electrical parameters comprises a case having a plurality of test lead jacks. Each of the test lead jacks includes a unitary conductive socket. Preferably, the sockets are made of metal such as brass. A circuit board located in the case has jack conductors in electrical communication with each of the sockets. A jack detection arrangement is adapted to automatically determine whether a plug is inserted into a respective one of the sockets based on a change in electrical characteristics. For example, the jack detection arrangement may include a photonic emitter and a photonic detector situated such that a beam path therebetween is interrupted by insertion of a plug. The case may further have a rotary selector knob for selecting a multimeter function.
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Gilbert John M.
Huggins Robert L.
Martineau Mathew J.
Morey Terry G.
Parker Daniel L.
Abrams Neil
Fluke Corporation
Nelson Mullins Riley & Scarborough LLP
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