Paper dispenser with proximity detector

A paper dispenser having a proximity detector for dispensation of paper therefrom. The dispenser includes a housing having an inner chamber adapted to support a roll of paper. The housing also has a dispensing aperture. A motor is adapted to dispense paper from the roll through the dispensing apertu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KNITTLE JOHN J, DENEN DENNIS JOSEPH, MYERS GARY EDWIN, GROEZINGER CHARLES W
Format:	Patent
Sprache:	eng
Schlagworte:	COFFEE MILLS DOMESTIC ARTICLES OR APPLIANCES ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FURNITURE HUMAN NECESSITIES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES NATURALLY-OCCURRING ELECTRICITY PHYSICS SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR SPICE MILLS STATIC ELECTRICITY SUCTION CLEANERS IN GENERAL TESTING TOILET ACCESSORIES
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Beschreibung
Zusammenfassung:	A paper dispenser having a proximity detector for dispensation of paper therefrom. The dispenser includes a housing having an inner chamber adapted to support a roll of paper. The housing also has a dispensing aperture. A motor is adapted to dispense paper from the roll through the dispensing aperture. The dispenser also includes a proximity detection circuit, which comprises an antenna, an oscillator circuit to charge the antenna, an operational amplifier operated as a unity gain follower which receives an antenna signal from the antenna, a detector circuit which detects changes in the antenna signal, and a comparator which actuates the motor in response to changes in the antenna signal.