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. 14, 1989
Filed:
Jun. 09, 1987
Patrick J Champagne, Cupertino, CA (US);
David L Rowden, Rochester, NY (US);
Verbatim Corp., Sunnyvale, CA (US);
Abstract
A write protect mechanism is disclosed for a cartridge of the type having top and bottom plates and an information recording medium interposed therebetween. The write protect mechanism comprises a button visible through an aperture in one of the plates and slideably moveable in the aperture between a write protect position and a write enabled position. In the write protect position, an interfacing recording device is actuated to prevent recording so that information previously recorded on the disk will not be inadvertently erased. In the write enabled position, the recording device is actuated to record information on the disk. The button further has a flag adapted to extend into a gap in a rear peripheral wall joining the top and bottom plates to visibly indicate that the button is in the write protect position and that information can not be recorded on the medium. When the flag is retracted, this visibly indicates that recording, if not prevented, could inadvertently erase previously recorded information.