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PORTABLE ALARM APPARATUS FOR WARNING PERSONS

  • US 20090027192A1
  • Filed: 07/25/2007
  • Published: 01/29/2009
  • Est. Priority Date: 07/25/2007
  • Status: Active Grant
First Claim
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1. A portable alarm apparatus for warning a person, the portable alarm apparatus comprising:

  • a manually portable housing or base unit;

    a constant power supply supported by the base unit, the constant power supply including an external power supply having an interface connectible to a power source external of the base unit, the constant power supply including an onboard power supply independent of the external power supply, anda detection circuit supported by the base unit, the detection circuit being connected to the constant power supply, the detection circuit being operable to detect a monitored condition; and

    an alarm circuit supported by the base unit, the alarm circuit being connected to the constant power supply, the alarm circuit being operable in response to detection of the monitored condition by the detection circuit to produce an alarm signal for warning at least one person.

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