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:
May. 08, 2001
Filed:
Jul. 29, 1999
Christian Allen Todd, Thornton, CO (US);
Storage Technology Corporation, Louisville, CO (US);
Abstract
A read-write head positioning device and method of operation that provide coarse and fine positioning using only one actuator. The read-write head is mounted on a carriage. The carriage is resiliently mounted to a moving frame. The moving frame is slidably mounted to a fixed frame. A detent mechanism disposed between the fixed frame and moving frame provides coarse positioning of the moving frame in several discrete positions relative to the fixed frame. An actuator disposed between the fixed frame and carriage provides for fine positioning of the transducer. To change coarse positions, the actuator drives the carriage in the desired direction to engage a mechanical stop on the carriage with a stop abutment on the moving frame. The actuator then continues to drive the carriage and the moving frame in the desired direction causing the detent mechanism to release from its current coarse position. When the detent mechanism captures the moving frame in the desired coarse position, the actuator backs the mechanical stop away from the stop abutment and resumes fine positioning operations.