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:
May. 10, 1994
Filed:
Mar. 10, 1993
Andrea Gagliardo, Cosseria, IT;
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
To provide a simple way to control full magazine condition in apparatus where films driven to the receiving magazine rest therein one on the other, the method provides for the following steps: sending an IR light signal toward the films in the magazine; letting the signal be reflected by the last arrived film; collecting the reflected signal with a photosensor; having the photosensor emit an alarm signal when the intensity of the light collected thereby is greater than threshold value of the photosensor itself, thereby showing that the last arrived film is too near to the photosensor, because the magazine is full; repeating the above steps every time a film is fed. This method allows also film jammed detection out side the magazine.