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. 03, 2015
Filed:
Jul. 20, 2006
Yoshikazu Yamamoto, Kadoma, JP;
Yoshikazu Kitaguchi, Habikino, JP;
Tatsuhiko Nakamura, Osaka, JP;
SHARP KABUSHIKI KAISHA, Osaka, JP;
Abstract
A water level sensor () is provided in an auxiliary tank () whose bottom portion communicates to a bottom portion of a pot () for generating steam and which is opened to the atmosphere. When water in the pot () keeps boiling and the stop time of a pump () reaches a predetermined time (e.g., 60 sec.), the pump () is driven for a predetermined time (e.g., 6 sec.) to supply water to the pot (). This temporarily suppresses the boiling of water in the pot (), lowering a steam pressure in a space formed by an external circulation passage (), a heating chamber, and the pot (). The water level in the auxiliary tank () then returns to a normal one, making it possible to correctly detect the water level in the pot ().