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:
Oct. 12, 1993
Filed:
Jul. 02, 1992
Makoto Kodaira, Ota, JP;
Uro Denshi Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
There is provided an automatic cleaner for a male urinal comprising: a sensor such as pyroelectric sensor, etc. for detecting that a human body comes close to the urinal or away therefrom to output a first signal, an one-shot multivibrator circuit of the retriggerable type triggered in response to the outputted first signal to output a second signal for a predetermined time, an infrared ray emitting circuit adapted for emitting infrared rays in the form of pulse for a time period during which the one-shot multivibrator circuit is outputting the second signal, and an infrared ray receiving circuit adapted for detecting that the emitted infrared rays are reflected by the human body to output a third signal in the form of pulse. This automatic cleaner further comprises a circuit responsive to the outputted third signal to trigger the one-shot multivibrator circuit independently of said first signal, a drive circuit adapted for counting the number of the outputted third signals to output a drive signal when the count value reaches a predetermined number of times, and there results the state where the third signal is not outputted, and a cleaning water control unit responsive to the drive signal to allow cleaning water to flow out.