Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1989-05-05
1991-07-30
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
36013034, G11B 2120
Patent
active
050364154
ABSTRACT:
A magnetic head supporting device includes a support member for supporting a magnetic head in opposed relationship to a magnetic disk. The support member is formed with an outer peripheral projection to define a recess inside thereof. When the magnetic disk is rotated in proximity to the recess, there is generated a partial vacuum in a space defined between the magnetic disk and the recess to suck the magnetic disk into the recess. A surface of the outer peripheral projection of the support member facing the magnetic disk has a predetermined surface roughness permitting communication of air between inside and outside of the recess and permitting suction of the magnetic disk into the recess due to the partial vacuum during rotation of the magnetic disk at a high speed. With this setting of the surface roughness, the occurrence of dewing and adherence of the disk to the support member can be prevented.
REFERENCES:
patent: 4003091 (1977-01-01), Wright
patent: 4074330 (1978-02-01), Norton et al.
patent: 4414592 (1983-11-01), Losee et al.
patent: 4578727 (1986-03-01), Hills
patent: 4600955 (1986-07-01), Regruit
patent: 4620250 (1986-10-01), Hills
patent: 4792874 (1988-12-01), MacDonald, II et al.
patent: 4833556 (1989-05-01), Kosarko et al.
patent: 4875276 (1989-10-01), Yunokuchi et al.
Nagamori Shuichi
Yoshida Toru
Alps Electric Co. ,Ltd.
Heid David W.
Renner Craig A.
Shoup Guy W.
Wolff John H.
LandOfFree
Magnetic head supporting device with predetermined surface rough does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic head supporting device with predetermined surface rough, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic head supporting device with predetermined surface rough will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1546335