Modulated audio annunciator providing stand-alone high voltage compatibility

An integrated line voltage converter and microprocessor-controlled tone generator allow advanced alarm features to be implemented in standard appliances as powered by a high-voltage line power. An integrated switch may also be used to allow the addition of alarm features to standard appliances as a...

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Bibliographische Detailangaben
Hauptverfasser:	Prunty Jeffrey L, Tucker Andrew W, Barrena Juan, Larson Eric K
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS BLASTING COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR HEAT PUMP SYSTEMS HEATING ICE-BOXES LAUNDERING LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILEARTICLES LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING ORDER TELEGRAPHS PHYSICS REFRIGERATION OR COOLING REFRIGERATORS SIGNALLING SIGNALLING OR CALLING SYSTEMS TEXTILES TREATMENT OF TEXTILES OR THE LIKE WEAPONS
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Beschreibung
Zusammenfassung:	An integrated line voltage converter and microprocessor-controlled tone generator allow advanced alarm features to be implemented in standard appliances as powered by a high-voltage line power. An integrated switch may also be used to allow the addition of alarm features to standard appliances as a drop-in replacement for door switches.