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:
Aug. 06, 2002
Filed:
Aug. 22, 1996
Other;
Abstract
One hundred volt AC power is conducted from a plug to a heater of a water tank through 100V lines. The 100V lines are provided with an electricity supply controlling element. Direct current 5V is conducted from the 100V lines to a microcomputer through a power-supply circuit formed with a transformer, a rectifier circuit and the like. The electricity supply controlling element receives a control signal through the signal line to keep the water temperature in the water tank at a predetermined temperature. The signal line is provided with a tipover switch and a float switch on the way thereof, thereby securely stopping the operation of the electricity supply controlling element when the water tank is tilted or turned over. The tipover switch is one with a smaller capacity, thereby reducing its cost.