Multiple function personal security alarm
First Claim
1. An alarm having multiple functions for the security of an individual within a preselected area, the alarm having a board mounting substantially all electrical components, comprising:
- switch means for selecting among the functions the alarm performs;
smoke detection means for optically detecting the presence of smoke in the preselected area including a light source for generating light, a light sensor for detecting light and opaque chamber means, said light sensor being positioned within said opaque chamber means in substantially perpendicular alignment to a longitudinal axis of transmission of light through said opaque chamber means from said light source, said opaque chamber means receiving light from said light source and isolating said light sensor from detecting light from said light source;
intrusion detection means for detecting an unauthorized intrusion into the preselected area;
alarm means for communicating to the individual the presence of a potential security threat; and
plate assembly means housing said switch means, said intrusion detection means, and said alarm means and being secured to the board, said plate assembly means defining said opaque chamber means for permitting the transmission of light from said light source to said light sensor upon the presence of a preselected concentration of smoke in said opaque chamber means from the preselected area.
2 Assignments
0 Petitions
Accused Products
Abstract
A multiple function alarm (10) for the security of an individual within a preselected area, the alarm (10) having substantially all its electrical components mounted to a board (12), includes a switch (14) for selecting the function the alarm is to perform; a smoke detector (16) for optically detecting the presence of smoke including a light source (72) for generating light and a light sensor (73) both mounted on the board (12); intrusion detector (15) for detecting an unauthorized intrusion into the selected area, a visual alarm (18) and audio alarm (19) for communicating to the individual the presence of a potential security threat; and a plate assembly (13) for housing switch (14), the intrusion detector (15) and the alarms (18, 19) in operative association with the electrical components mounted to the board (12). Plate assembly (13) defines an opaque chamber (74) for controlling the transmission of light from the light source (72) to the light sensor (73) dependent upon the amount of smoke in the opaque chamber (74), light source (72) and light sensor (73) communicating with opaque chamber (74).
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Citations
29 Claims
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1. An alarm having multiple functions for the security of an individual within a preselected area, the alarm having a board mounting substantially all electrical components, comprising:
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switch means for selecting among the functions the alarm performs; smoke detection means for optically detecting the presence of smoke in the preselected area including a light source for generating light, a light sensor for detecting light and opaque chamber means, said light sensor being positioned within said opaque chamber means in substantially perpendicular alignment to a longitudinal axis of transmission of light through said opaque chamber means from said light source, said opaque chamber means receiving light from said light source and isolating said light sensor from detecting light from said light source; intrusion detection means for detecting an unauthorized intrusion into the preselected area; alarm means for communicating to the individual the presence of a potential security threat; and plate assembly means housing said switch means, said intrusion detection means, and said alarm means and being secured to the board, said plate assembly means defining said opaque chamber means for permitting the transmission of light from said light source to said light sensor upon the presence of a preselected concentration of smoke in said opaque chamber means from the preselected area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An alarm having multiple functions for the security of an individual within a preselected area, the alarm having a board mounting substantially all electrical components, comprising:
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switch means for selecting among the functions the alarm performs; smoke detection means for optically detecting the presence of smoke in the preselected area including a light source for generating light and a light sensor for detecting light; intrusion detection means for detecting an unauthorized intrusion into the preselected area; alarm means for communicating to the individual the presence of a potential security threat, said alarm means including audio alarm means for providing an auditory alarm upon the detection of a potential security threat; and plate assembly means housing said switch means, said intrusion detection means and said alarm means and being secured to the board, said plate assembly means including a first plate and a second plate, said plate assembly means defining opaque chamber means for permitting the transmission of light from said light source to said light sensor upon the presence of a preselected concentration of smoke in said opaque chamber means, said light source and said light sensor communicating with said opaque chamber means, said audio alarm means including piezoelectric disc means for generating said auditory alarm and contacts mounted in the board and extending through said first plate into contact with said piezoelectric disc means, said piezoelectric disc means resting unattached between said first and second plate means to freely vibrate between said first and second plate means means while remaining in contact with said contacts during operation. - View Dependent Claims (26, 27, 28, 29)
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Specification