Electrical switch with three fixed contacts, a rotating knife contact and three switch positions
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United States of America Patent
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Nov 16, 2021
Grant Date -
Dec 24, 2020
app pub date -
Jun 22, 2020
filing date -
Jun 20, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
The electrical switch includes three fixed contacts and a rotatable knife contact being connected with a permanent electrical connection to a third one of the fixed contacts and including at least one pair of longitudinal blades. The rotatable knife contact connects in a first switching position only a first one and a third one of the fixed contacts electrically together, and in a second switching position only a second one and a third one of the fixed contacts. The rotatable knife contact connects further in a zero switching position the first, the second and the third fixed contact electrically together.
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