High intensity small size personal alarm

• US 7,800,482 B1
• Filed: 07/25/2007
• Issued: 09/21/2010
• Est. Priority Date: 07/25/2006
• Status: Expired due to Fees

• Current Assignee: Clarence Martin, Darryl Costin, Scott C Harris
• Original Assignee: Clarence Martin, Darryl Costin, Scott C Harris
• Inventors: Martin, Clarence, Harris, Scott C., Costin, Darryl J.
• Primary Examiner(s): TRIEU, VAN THANH
• Application Number:
  US11/782,780
• Time in Patent Office: 1,154 Days
• Field of Search: 340/574, 340/573.1, 340/384.4, 340/384.6, 340/321, 340/326, 340/331, 340/332, 340/333, 340/576, 340/584.6, 320/116, 320/118, 320/119, 455/575.6, 362/240, 362/427
• US Class Current: 340/321
• CPC Class Codes: G08B 15/004 using portable personal devices hand-held or body-worn self-defence devices using repellent gases or chemicals F41H9/10

Abstract

A small but loud personal alarm system, which produces at least 135 KB of output noise from a small package which has no outer extends greater than 2¼″.

Claims

1. A personal alarm system, comprising:

a housing, having no outer dimension larger than 2¼

inches, and defining an inner cavity;

a connection for a 12 volt battery, inside said inner cavity;

an electronic circuit board inside said inner cavity;

an electronic sound generator inside inner cavity, receiving an output voltage from said battery and producing a sound based thereon, wherein said sound is at least 135 dB; and

a switch, extending to an outside of said housing, operating when actuated to produce the sound.

2. A system as in claim 1 wherein no outer dimension is no larger than 2 inches and said sound is greater than 138 db.

3. A system as in claim 1, further comprising a pattern generator electronic circuit, which produces a pattern that is played by said sound generator.

4. A system as in claim 3, wherein said pattern is an SOS pattern.

5. A system as in claim 3, wherein said pattern is a siren type pattern.

6. A system as in claim 1, wherein said battery is wholly isolated from all circuits in the system when not in use.

7. A system as in claim 1, wherein said switch electrically disconnects said battery from all circuits in the system when deactuated.

8. A system as in claim 1, further comprising a battery tester part, connectable across said battery to test a voltage thereof.

9. A system as in claim 1, further comprising a voltage increasing part, receiving voltage from the battery, and increasing a voltage of the battery.

10. A personal alarm system, comprising:

a housing, having no outer dimension larger than 2¼

″

, and defining an inner cavity;

a connection for a battery, inside said inner cavity;

a voltage increasing circuit that increases a voltage of an output of said battery, coupled to said battery connection, inside said inner cavity;

an electronic sound generator, receiving an output voltage from said voltage increasing circuit, and producing a sound based thereon, wherein said sound is at least 135 dB; and

a switch, extending to an outside of said housing, operating when actuated to connect an output of said voltage circuit to said electronic sound generator.

11. A system as in claim 10, wherein said voltage increasing circuit is a DC to DC converter whose output is used without filtering or capacitors between said DC to DC converter and said electronic sound generator.

12. A personal alarm system, comprising:

a housing having an outer surface and an inner surface, and having outer dimensions, no outer dimension of which is greater than 2¼

″

;

said outer surface including a switch thereon, which can be actuated by a user;

a battery connection, coupled to said switch, said battery connection being coupled to said inner surface, and including a connection for a battery;

an electronic pattern generator, which produces a pattern of first sounds and second sounds in a repeated fashion, powered by said battery wherein said switch is actuated; and

an electronic sound generator, powered by said battery when said switch is actuated, said electronic sound generator producing at least 135 dB of sound when actuated.

13. A device as in claim 12, further comprising a circuit that increases an output voltage of said battery, connected to said battery by actuation of said switch, wherein said increased output voltage is connected to said electronic sound generator.