The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 1989
Filed:
Mar. 04, 1988
Kenneth D Hartman, DeKalb, IL (US);
Donald B Owen, Villa Park, IL (US);
Steiner Company, Inc., , UT (US);
Abstract
A continuous towel dispenser includes a sensor which detects the disruption of the radio frequency (RF) field below the dispenser's cabinet caused by movement of a user's hands in withdrawing unused towel from a towel from supply roller and provides a control signal to a towel dispensing motor coupled to a supply roller allowing the towel to be dispensed for a predetermined time period corresponding to a desingated towel length. At the same time, a control signal initiates downward displacement of a towel idler bar allowing a length of used towel to also be withdrawn from the cabinet. After a predetermined time interval, e.g., 5 seconds, a towel takeup cycle is automatically initiated by upward displacement of the idler bar followed by a reversal in the direction of rotation of the towel takeup roller. The towel takeup cycle continues for a designated time period or until a stall current in a towel takeup motor is detected indicating that all of the towel has been withdrawn into the cabinet. Inhibit means prevents additional unused towel from being withdrawn during a hand drying cycle.