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. 30, 1984
Filed:
Dec. 27, 1982
Akira Sawaki, Hachioji, JP;
Hiromi Nozaki, Hachioji, JP;
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Abstract
An automatic shut-off device for a recording apparatus such as a copying machine has a commercial power source for powering the machine during an ON-state, charging means connected to the power source for charging a battery, control means for providing a first signal for an ON-state and a second signal for an automatic shut-off state, first means responsive to said first signal to effect charging of said battery, and second means responsive to said second signal to electrically disconnect the commercial power source, and to supply an output power from said battery for selected operational control functions for the period of said automatic shut-off state. Thus, in the automatic shut-off state, the machine maintains certain operational control functions, such as low power displays, powered by the battery but is disconnected from the commercial power source, thereby reducing the risk of an accident such as a short circuit.