Tamper-resistant alarm switch assembly
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United States of America Patent
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May 17, 2011
Grant Date -
Jan 14, 2010
app pub date -
Jul 14, 2008
filing date -
Jul 14, 2008
priority date (Note) -
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Abstract
Tamper-resistant alarm switch assemblies (22, 100, 124, 148) are provided which include a first movement-sensing switch (24) and a second tamper-sensing switch assembly (25) including a switchable component (26) and an actuating component (74, 136, 166), mounted on a member (30) and each being switchable between respective first and second movement-sensing and tamper-sensing switch states in response to relative movement between first and second members (30, 32), and relative shifting between the switch (26) and actuating component (74, 136, 166). Mounting structure (28, 106, 138) is provided to attach the first switch (24) and second switch assembly (25) to the member (30) in a normal operating position wherein the first switch (24) will sense relative movement between the first and second members (30, 32), with relative shifting between the switchable component (26) and the actuating component (74, 136, 166) in the event of an attempted detachment of at least one of the components (26, 74, 136, 166) of the tamper switch assembly (25), or the first switch (24), or both thereof, from the member (30).
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