Float operated electrical switch assembly
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United States of America Patent
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-
Jun 15, 1982
Grant Date -
N/A
app pub date -
Feb 19, 1980
filing date -
Feb 20, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A float operated electrical switch assembly has a housing (10) fitted to an opening in a container wall (14). A float (19) follows the liquid level and is pivoted with a primary magnet (18) about a pivot axis (17). A pivotal secondary magnet (21) acts in repulsion with the primary magnet (18) through a non-magnetic wall (20) of the housing (10). The movement of the secondary magnet (21) causes at least one control rod (48) to reciprocate. A switch contact (32) is normally held under the resilience of its carrier leaf spring (38) in engagement with a fixed switch contact (33). The contacts are opened by movement of the control rod (48) moving the switch contact (32) against the resilience of its carrier.
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