Security device
First Claim
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1. A security device comprising:
- a. an alarm,b. a clock adapted to actuate said alarm when a predetermined time period has elapsed,c. a human physical activity sensor adapted to reset said clock to the beginning of said predetermined time period when human activity is sensed, andd. means for sensing an inanimate object in contact therewith, said means adapted in the absence of said inanimate object to prevent actuation of said alarm when said predetermined time period has elapsed.
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Abstract
A security device includes an alarm that is actuated after a predetermined period of no human physical activity, which device includes a clock set to actuate the alarm after a predetermined period of inactivity, an activity sensor that resets the clock when human activity is sensed, and a means to sense an inanimate object, such as a set of keys, and which, when the inanimate object is absent, will not actuate the alarm when the predetermined time period has passed. There is also disclosed means to actuate the alarm when any activity is sensed if the inanimate object is absent.
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Citations
8 Claims
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1. A security device comprising:
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a. an alarm, b. a clock adapted to actuate said alarm when a predetermined time period has elapsed, c. a human physical activity sensor adapted to reset said clock to the beginning of said predetermined time period when human activity is sensed, and d. means for sensing an inanimate object in contact therewith, said means adapted in the absence of said inanimate object to prevent actuation of said alarm when said predetermined time period has elapsed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification