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:
Sep. 23, 2003
Filed:
Jun. 09, 2000
Thomas A. Wilke, Boulder, CO (US);
Marvin R. DeForest, Niwot, CO (US);
Dennis D. Ogden, Longmont, CO (US);
Iomega Corporation, Roy, UT (US);
Abstract
An information storage device ( ) includes a cradle ( ) which can removably receive a cartridge ( ). The cartridge has a sealed housing ( ) which contains a rotatably supported disk ( ), and a pivotal actuator arm ( ) that supports a magnetic head ( ) 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 ( ) on the actuator arm is in close proximity to a magnetic arrangement ( ) 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 ( ) 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.