Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1998-05-15
2000-01-11
Klimowicz, William J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
36013034, G11B 1564
Patent
active
060142871
ABSTRACT:
A speed plate device that is bonded to a Bernoulli plate for juxtaposition to a rotating flexible magnetic disk so that the flexible disk is rendered substantially rigid by a vacuum formed by the air between the speed plate/Bernoulli plate surface and the disk being urged outwardly under the influence of centrifugal force is disclosed. The speed plate device provides a method and means for spinning flexible magnetic media at high spins without any associated signal loss or modulation normally experienced at these elevated speeds. The speed plate is bonded to a Bernoulli plate and has the advantage of changing the Bernoulli surface, thereby preventing the media from sucking down to the Bernoulli plate at higher speeds. This improvement allows the floppy media to be spun at higher speeds. The speed plate also has a narrow slot that runs radially across the speed plate so that heads can access the flexible magnetic media. This narrow slot also helps to reduce air flow into the head access slot, stabilizes the media by giving more support around the heads, and allows the bottom head to clear the load bar. The speed plate also has a stabilization feature that allows the media to be spun at speeds greater than 5,000 rpm without any instability that may cause signal loss or modulation.
REFERENCES:
patent: 4376960 (1983-03-01), Karol
patent: 4400748 (1983-08-01), Bauck et al.
patent: 4419704 (1983-12-01), Radman et al.
patent: 4600955 (1986-07-01), Regruit
patent: 4620250 (1986-10-01), Hills
patent: 4743989 (1988-05-01), Bauck et al.
patent: 4768124 (1988-08-01), Bauck et al.
patent: 4769733 (1988-09-01), Freeman et al.
patent: 4794480 (1988-12-01), Jones et al.
patent: 4975794 (1990-12-01), Losee et al.
patent: 5005098 (1991-04-01), Kanada
patent: 5012463 (1991-04-01), Farnsworth et al.
patent: 5077726 (1991-12-01), Dodds et al.
patent: 5237477 (1993-08-01), Hodapp et al.
patent: 5293287 (1994-03-01), Tzur et al.
patent: 5537281 (1996-07-01), Ma et al.
patent: 5775623 (1998-07-01), Long
Hwang, M., http://curricula.mit.edu/.about.2006/Tex...6.html#SECTION00273000000000000 000, Feb. 2, 1996, 7 pages.
Douangdara Hoahane
Ehlers Kirt
Evans Dennis
Jenn Sheen-Haw
Scoresby Michael
Iomega Corporation
Klimowicz William J.
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