Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1989-06-16
1991-05-21
Severin, David J.
Dynamic magnetic information storage or retrieval
Record medium
In container
G11B 23033
Patent
active
050180398
ABSTRACT:
A disc cartridge capable of preventing entering of dust into a casing and ensuring a stable and positive operation without damaging a disc while satisfactorily exhibiting a cleaning effect and keeping proper contact between a recording head and the disc. A casing is provided thereon with a slide area which is formed by a slide area defining section of the casing. The slide area is formed with at least one head inserting hole. The slide area defining section is provided on an inner surface thereof with at least one thick-walled portion in a manner to extend along a whole periphery of a portion of the head inserting hole overlapping a sheet-like liner and inwardly project from the inner surface of the casing, so that the liner may be pressed against the disc at a force of a constant level over a wide area of the disc and block a communication between an exterior of the cartridge and its interior through the head inserting hole.
REFERENCES:
patent: 4272793 (1981-06-01), Van Landingham
patent: 4660117 (1987-04-01), Carey et al.
patent: 4814926 (1989-03-01), Gulbrandsen
Ikebe Masaru
Sasaki Morimasa
Shiba Haruo
Severin David J.
TDK Corporation
LandOfFree
Disc cartridge with thick portion surrounding head insertion hol does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Disc cartridge with thick portion surrounding head insertion hol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disc cartridge with thick portion surrounding head insertion hol will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-243414