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:
Jan. 20, 1987
Filed:
Nov. 19, 1985
Teruo Fujii, Kyoto, JP;
Tomikazu Tsutsui, Kyoto, JP;
Dainippon Screen Mfg. Co., Ltd., Kyoto, JP;
Abstract
A drum type image scanning and recording apparatus, with a drum around whose cylindrical external surface a film is fixedly wrapped and a drum-driving apparatus mechanically coupled to the drum for rotating the drum, has a string tensionally stretched nearby and along the external surface of the drum in parallel with the drum axis by a string stretching device. A swing detecting device detects the swing of the string produced when part of the film and the string are in contact with each other, as when the drum is rotating and the film separates away from the drum external surface. The rotation of the drum is stopped in response to an abnormality detection signal from the swing detecting device, thus precluding significant physical separation of the film from the drum.