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:
Mar. 17, 1998
Filed:
Jan. 08, 1997
Douglas W Constable, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
In a single use camera having a flash circuit and a film drive motor operated from a single battery source, a control circuit is provided with a diode that is coupled from a terminal on the motor control switch to the flash charging circuit to suppress operation of the flash charging circuit while the film drive motor is operating to advance the film after a picture taking event. The motor OFF position of the control switch is connected to battery positive terminal and the control circuit includes a capacitive connection from the switch to the flash charging circuit such that when the motor switch changes over from the motor ON to motor OFF position, a positive pulse is applied to restart operation of the flash charging circuit when the motor is turned off. This arrangement suppresses operation of the flash charging circuit while the motor is running, allowing full battery current to be applied to the motor. The control circuit is not a part of the primary flash charging circuit path thus it does not adversely affect the charging cycle time.