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:
Feb. 20, 2001
Filed:
Jul. 29, 1999
Minoru Ono, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
An instant photo film pack to be loaded in a pack holder is constituted by a box-shaped pack case which contains stacked self-developing photo film units of a peel-apart type. The pack case has an exposure opening formed in an upper wall thereof and a passage opening formed with a front wall thereof. A pressure plate is disposed in the pack case, and provided with a pair of lateral walls so as to separate an inside of the pack case into upper and lower chambers. Each of the photo film units includes a photosensitive sheet contained in the upper chamber. An image receiving sheet is contained in the lower chamber. A withdrawing sheet has an edge connected with the photosensitive sheet. A developing solution pod is disposed on the withdrawing sheet, for containing developing solution. A mask sheet has an edge connected with the withdrawing sheet. A mask opening is formed in the mask sheet. The image receiving sheet is disposed behind the mask opening to close the mask opening, and secured thereto in a peelable manner. The improved instant photo film pack is constituted by the pack case and the pressure plate being plastic molded pieces. A biasing force transmission member is disposed on a bottom wall of the pack case, for transmitting the biasing force of a spring member on an inside of the pack holder to the pressure plate, to push the pressure plate toward the exposure opening.