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:
Aug. 07, 1990
Filed:
Aug. 25, 1989
Kazuo Kubota, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A magnetic tape cassette checking system is provided with a lock releasing mechanism (11), a cover opening mechanism (12) and a position detecting device (13), and checks whether a cassette cover can be correctly opened and closed. The lock releasing mechanism comprises a cylinder and a lock releasing pin which is moved back and forth by the cylinder and is adapted to push a lock member of the cassette to a releasing position. The cover opening mechanism comprises a cylinder, a cover opening plate which is moved up and down by the cylinder, a photoelectric switch disposed near the plate, and a damper spring connecting the plate with the cylinder, and is adapted to push the cover of the cassette to the opened position. The position detecting device comprises two pairs of photoelectric switches and detects whether the cover of the cassette is in the closed position.