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:
Jan. 22, 1991
Filed:
Nov. 20, 1989
Applicant:
Inventor:
Masayuki Aoki, Ichinomiya, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B / ; G01R / ; G01R / ; H05B / ;
U.S. Cl.
CPC ...
364580 ; 36455101 ; 324420 ; 324422 ; 219 / ;
Abstract
In a high frequency cooking apparatus including a magnetron, a fan motor, turntable motor, a plurality of relays for controlling them and a microcomputer controlling the relays, the microcomputer is provided with a relay test program. The relay test program is executed when specific two cooking menu selecting keys are simultaneously depressed. Consequently, pulses are sequentially supplied to all the relays and simultaneously, relay identification marks are sequentially displayed on a display unit. Based on the mechanical operation sound from each relay and the displayed content, an operator determines whether or not each relay is normal.