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. 14, 2014
Filed:
Aug. 25, 2011
Hiroyuki Hozumi, Tokyo, JP;
Hiroyuki Hoshino, Tokyo, JP;
Mineo Mizukami, Tokyo, JP;
Jamco Corporation, Tokyo, JP;
Abstract
Water leakage of a steam oven provided on an aircraft for heating ingredients is to be prevented. Two solenoid valvesandare inserted in series in a water supply circuit of a steam oven. A power switchsupplies a 15 V direct current to the solenoid valvesand. A controllertransmits a command to driving circuitsandof the solenoid valves according to a signal of a temperature sensorin the oven. An output of a clock generatoris counted by a frequency counter and a time in which the valves are opened is counted. When count of a valve opening time becomes longer than a predetermined value, the power switchof the solenoid valves is disconnected to prevent water leakage.