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:
Jun. 17, 1997
Filed:
Jun. 06, 1995
Nikon Corporation, Tokyo, JP;
Abstract
The present invention is directed to a camera having a cartridge chamber, which is formed as a hole in the body of the camera, into which a film cartridge is inserted along its axial direction through an access opening of the hole. The cartridge has an identifying mechanism for indicating whether the film in the cartridge has been used. The camera includes a load prevention member provided in the cartridge chamber that engages the identifying mechanism of the cartridge and prevents insertion of the cartridge into the chamber when the identifying mechanism indicates that the film has been used. The camera also includes a signal output circuit for outputting a load signal when the cartridge is loaded into the cartridge chamber and a non-load signal when the cartridge is unloaded from the cartridge chamber. The signal output circuit outputs the load signal before the cartridge engages the load prevention member.