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:
Nov. 01, 1983
Filed:
Jan. 19, 1982
Hiroyuki Oota, Iwakura, JP;
Ryuuho Narita, Nagoya, JP;
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Abstract
An AC power source is coupled with a heater circuit containing a series circuit including a cover switch for a coffee maker, a thermal switch for controlling the temperature of a heating unit and a control switch for turning on and off a heater of the heating unit. A detecting circuit is connected between a signal take-out node as a juction point between the heater and the thermal switch and one end of the AC power source. The detecting circuit responds to a given on-off states of each of the switches to receive a detection current from the signal take-out node, and produces a detection signal for controlling a control apparatus for the coffee maker.