06624979 is referenced by 2 patents and cites 15 patents.

An information storage device (

10, 510, 610, 710

) includes a cradle (

12, 512, 612, 712

) which can removably receive a cartridge (

11, 411, 511, 611, 711

). The cartridge has a sealed housing (

59

) which contains a rotatably supported disk (

91, 326-327

), and a pivotal actuator arm (

101

) that supports a magnetic head (

107, 331-334

) for movement adjacent the disk. When the cartridge is removed from the cradle, the head is moved to a parked position with respect to the disk, in which a magnetically permeable part (

116

) on the actuator arm is in close proximity to a magnetic arrangement (

141

) disposed within the housing. The magnetic arrangement exerts a strong magnetic force that resists movement of the arm and head away from the parked position. The cradle has a shunt (

142

) which, when the cartridge is removably inserted, interacts with the magnetic field through a wall of the sealed housing, in a manner which reduces the effective magnetic force that tends to retain the arm and head in the parked position.

Title
Method and apparatus for parking and releasing a magnetic head
Application Number
9/591540
Publication Number
6624979 (B1)
Application Date
June 9, 2000
Publication Date
September 23, 2003
Inventor
Dennis D Ogden
Longmont
CO, US
Marvin R DeForest
Niwot
CO, US
Thomas A Wilke
Boulder
CO, US
Agent
Baker Botts L
US
Assignee
Iomega Corporation
UT, US
IPC
G11B 5/012
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