Electric bell having a mechanism for supporting electromagnetic unit
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United States of America Patent
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-
Jun 1, 1999
Grant Date -
N/A
app pub date -
Aug 25, 1997
filing date -
Aug 25, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electric bell includes a base having two walls extended upward from the central portion for forming a casing. The walls each includes an upper portion having one or more projections. Two spring leaves are secured on the base. An electromagnetic unit is engaged into the casing and engaged between the walls and retained in place by the projections. The electromagnetic unit includes a coil and a stem slidably engaged in the coil for allowing the stem to be driven by the coil to strike onto the spring leaves. The electromagnetic unit may be secured in place without additional tools and fasteners.
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