Manually actuatable wrist alarm having a high-intensity sonic alarm signal
First Claim
1. A compact wrist alarm which is worn on the wrist of a potential victim for producing a high-intensity sonic alarm signal in response to manual actuation by said potential victim to immediately deter an attacker, comprising:
- a band sized for at least partially encircling a wrist of the potential victim;
a housing disposed on a portion of said band;
a face plate disposed upon said housing for presenting a face area to the potential victim;
a means for defining a sound passageway from the interior to the exterior of said housing;
an electronic alarm circuit having an ON and an OFF condition and being disposed within the interior of said housing, said electronic alarm circuit generating a speaker drive signal when in said ON condition;
a power source connected to said electronic alarm circuit;
an auditory speaker disposed within the interior of said housing and connected to said electronic alarm circuit, said speaker disposed for communicating sound through said sound passageway defining means, said auditory speaker responsive to said drive signal for producing a high intensity sonic alarm signal having an intensity of at least 105 dB at a distance of 2 feet from said housing; and
an actuation means connected to said electronic alarm circuit and responsive to manual actuation for placing said circuit in said ON condition.
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Accused Products
Abstract
A personal alarm which can be manually actuated to produce a high-intensity sonic alarm signal, and which is compact, portable and fashionably designed. In one embodiment, this personal alarm is structurally incorporated into a wrist watch with the alarm components arranged thereon in a fanciful yet highly functional manner. This alarm may also be structurally incorporated into other conventional items such as a bracelet, pendant, necklace, keychain ornament, or any other conventional item which is often carried by the persons to be protected. In a further embodiment, the compact size is achieved without sacrificing intensity in the alarm signal by incorporating a specially wound autotransformer and an efficient switching device so as to provide a tuned warbling signal upon a piezoelectric transducer.
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Citations
30 Claims
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1. A compact wrist alarm which is worn on the wrist of a potential victim for producing a high-intensity sonic alarm signal in response to manual actuation by said potential victim to immediately deter an attacker, comprising:
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a band sized for at least partially encircling a wrist of the potential victim; a housing disposed on a portion of said band; a face plate disposed upon said housing for presenting a face area to the potential victim; a means for defining a sound passageway from the interior to the exterior of said housing; an electronic alarm circuit having an ON and an OFF condition and being disposed within the interior of said housing, said electronic alarm circuit generating a speaker drive signal when in said ON condition; a power source connected to said electronic alarm circuit; an auditory speaker disposed within the interior of said housing and connected to said electronic alarm circuit, said speaker disposed for communicating sound through said sound passageway defining means, said auditory speaker responsive to said drive signal for producing a high intensity sonic alarm signal having an intensity of at least 105 dB at a distance of 2 feet from said housing; and an actuation means connected to said electronic alarm circuit and responsive to manual actuation for placing said circuit in said ON condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A compact wrist alarm which is worn on the wrist of a potential victim for producing a high-intensity sonic alarm signal in response to manual actuation by said potential victim to immediately deter an attacker, comprising:
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a housing; a face plate disposed upon said housing for presenting a face area to the potential victim; means for defining a sound passageway from the interior to the exterior of said housing; an electronic alarm circuit having an ON and an OFF condition and being disposed within the interior of said housing, said electronic alarm circuit generating a speaker drive signal when in said ON condition; an auditory speaker connected to said electronic alarm circuit and disposed within the interior of said housing for communicating sound through said sound passageway defining means, said auditory speaker responsive to said drive signal for producing a high intensity sonic alarm signal having an intensity of at least 105 dB at a distance of 2 feet from said housing; actuation means connected to said circuit and being responsive to manual actuation for placing said circuit in said ON condition; a power source connected to said electronic alarm circuit; and a band sized for at least partially encircling the wrist of the potential victim and carrying said housing in a manner to permit the presentation of said face area on the backhand portion of the potential victim'"'"'s wrist. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A personal alarm having an electronic alarm circuit, wherein said personal alarm is disguised as a conventional item to conceal its function as an alarm, said alarm circuit comprising:
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an oscillator for producing an oscillating signal; a switch means responsive to said oscillating signal for switching between a high resistance OFF state and a low resistance ON state; an autotransformer having a high-turns ratio, a low-loss primary responsive to said switch means, said ON and OFF states of said switch means generating a changing current through said low loss primary, and a secondary responsive to said current flowing through said low-loss primary for providing a stepped-up signal generated in accordance with said oscillating signal; and an auditory speaker responsive to said stepped-up signal for producing a high-intensity sonic alarm signal. - View Dependent Claims (24, 25, 26, 27)
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28. A compact wrist alarm for manual actuation by a potential victim to produce a high-intensity sonic alarm signal, comprising:
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a housing; a face plate disposed upon said housing for presenting a face area to the potential victim; means for defining a sound passageway from the interior to the exterior of said housing; an electronic alarm circuit having an ON and an OFF condition and being disposed within the interior of said housing for communicating sound through said sound passageway defining means, said electronic alarm circuit having an oscillator for producing an oscillating signal, a switch means responsive to said oscillating signal for switching between a high resistance OFF state and a low resistance ON state, and an autotransformer having a high-turns ratio, a low-loss primary responsive to said switch means, said ON and OFF states of said switch means generating a changing current through said low loss primary, and a secondary responsive to said current flowing through said low-loss primary for providing a stepped-up signal generated in accordance with said oscillating signal; an auditory speaker connected to said electronic alarm circuit and disposed within the interior of said housing for communicating sound through said sound passageway defining means, said auditory speaker having a piezoelectric transducer responsive to said stepped-up signal; manual actuation means connected to said circuit for placing said circuit in said ON condition; a power source connected to said electronic alarm circuit; and a band sized for at least partially encircling the wrist of the potential victim and carrying said housing in a manner to permit the presentation of said face area on the back hand side of the potential victim'"'"'s wrist. - View Dependent Claims (29, 30)
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Specification