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:
Jul. 17, 1984
Filed:
Nov. 20, 1981
Applicant:
Inventors:
Kunihiko Araki, Tokyo, JP;
Susumu Iguchi, Yokohama, JP;
Tadafumi Ohguro, Tokyo, JP;
Yoshimi Ono, Kawasaki, JP;
Koichi Nishi, Yokohama, JP;
Yoshio Fukushima, Tokyo, JP;
Satoshi Yamane, Kobe, JP;
Hirofumi Horigome, Kawasaki, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ; G03B / ;
U.S. Cl.
CPC ...
35417311 ; 354214 ; 354217 ; 354268 ;
Abstract
A film advancing system of a camera in which a roll of film inside a film cartridge is first wound to a spool and then the film is rewound into the cartridge one frame from another after each photographic operation is provided. The system includes a reversibly rotatable motor the drivement and rotational direction of which are automatically controlled depending upon various conditions of the camera to implement required advancement of the film.