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:
Dec. 07, 1993
Filed:
Dec. 09, 1991
Masahiko Maeda, Osaka, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A refrigerator controller which can positively lock and unlock a door thereof in accordance with a command signal from a host-computer connected therewith. The refrigerator controller includes a power supply voltage indicating device. A DC power supply is charged by a DC power source and energizes a door lock mechanism activating device to lock and unlock the door. DC voltage generated by the DC power supply rises as it is charged by the DC power source. The door lock mechanism activating device can be energized to positively lock and unlock the door by being fed with a predetermined lower limit voltage. Only when the DC voltage generated by the DC power supply is no lower than the predetermined lower limit voltage is the door lock mechanism activating device energized by the DC power supply to lock and unlock the door of the refrigerator in accordance with the command signal.