US5420570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually actuatable wrist alarm having a high-intensity sonic alarm signal
Assignee: K&B Protection Inc
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Filing: 1993-11-01
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Granted: 1995-05-30
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Expires: 2013-11-01
Abstract
Abstract A personal alarm 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. Additionally, the alarm may be activated or deactivated by manually actuating an actuator, such as a switch or plurality of switches, in a particular sequence.
Inventors
- 👤 Brian J. Leitten
- 👤 Gary L. Claypoole
- 👤 Dennis J. Gallant
- 👤 Elvin D. Stepp
- 👤 Kenneth R. Umans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:59
CPC Classifications
G; G08; G08B; G08B21/00; G08B21/02; G08B21/0297
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
151 words
A personal alarm having an electronic alarm circuit, said alarm circuit being placeable into an ON condition in which an alarm sounds and an OFF condition, said personal alarm further comprising: an actuator being manually actuable for placing said alarm circuit into one of said conditions; and said alarm circuit including: an actuation circuit responsive to manual actuation of said actuator for placing said alarm circuit into said one of said conditions; an oscillator for producing an oscillating signal; a switch means responsive to said oscillating signal for switching between an OFF state and an ON state; an autotransformer responsive to said switch means 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 having an intensity of at least 105 dB at a distance of 2 feet from said alarm circuit.
Claim 2
Dependent Claim
151 words
A personal alarm having an electronic alarm circuit, said alarm circuit being placeable into an ON condition in which an alarm sounds and an OFF condition, said personal alarm further comprising: an actuator being manually actuable for placing said alarm circuit into one of said conditions; and said alarm circuit including: an actuation circuit responsive to manual actuation of said actuator for placing said alarm circuit into said one of said conditions; an oscillator for producing an oscillating signal; a switch means responsive to said oscillating signal for switching between an OFF state and an ON state; an autotransformer responsive to said switch means 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 having an intensity of at least 105 dB at a distance of 2 feet from said alarm circuit.
Claim 3
Dependent Claim
18 words
The personal alarm of claim 1 wherein said actuator generates a code signal in response to manual actuation.
Claim 4
Dependent Claim
31 words
The personal alarm of claim 2 wherein said actuator includes a depressable member, said actuator generating said code signal in response to a sequence of manual depressions of said depressable member.
Claim 5
Dependent Claim
23 words
The personal alarm of claim 3 wherein said actuator includes a visual display that is responsive to manual depression of said depressable member.
Claim 6
Dependent Claim
13 words
The personal alarm of claim 1 wherein said actuator is a toggle switch.
Claim 7
Dependent Claim
13 words
The personal alarm of claim 1 wherein said actuator is a slide switch.
Claim 8
Dependent Claim
14 words
The personal alarm of claim 1 wherein said actuator is a threshold pressure switch.
Claim 9
Dependent Claim
23 words
The personal alarm of claim 1 wherein said actuator generates a code upon manual actuation and wherein said actuation circuit monitors said code.
Claim 10
Dependent Claim
16 words
The personal alarm of claim 1 wherein said one of said conditions is said OFF condition.
Claim 11
Dependent Claim
18 words
The personal alarm of claim 9 wherein said actuator generates a code signal in response to manual actuation.
Claim 12
Dependent Claim
30 words
The personal alarm of claim 10 wherein said actuator includes a depressable member, said actuator generating said code signal in response to a sequence of manual depressions of said member.
Claim 13
Dependent Claim
26 words
The personal alarm of claim 11 wherein said actuator includes a visual display that is responsive to said sequence of manual depressions of said depressable member.
Claim 14
Dependent Claim
13 words
The personal alarm of claim 9 wherein said actuator is a toggle switch.
Claim 15
Dependent Claim
13 words
The personal alarm of claim 9 wherein said actuator is a slide switch.
Claim 16
Dependent Claim
14 words
The personal alarm of claim 9 wherein said actuator is a threshold pressure switch.
Claim 17
Dependent Claim
23 words
The personal alarm of claim 9 wherein said actuator generates a code upon manual actuation and wherein said actuation circuit monitors said code.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-05-29 | 1998-11-28 | 1999-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-29 | 2002-11-28 | 2003-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-29 | 2006-11-28 | 2007-05-30 | $7700.00 | Window Closed / Lapsed |