Disk drive unit

Dynamic optical information storage or retrieval – Dynamic mechanism optical subsystem – Protecting optical transducer

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C720S648000, C720S601000

Reexamination Certificate

active

10819804

ABSTRACT:
A disk drive unit advantageously prevents dust from adhering to a pickup. The disk drive unit has a housing and a tray. The tray reciprocates between a retracted position and a projected position. A first pickup and a second pickup have a spindle motor located therebetween. The tray has a first cutout and a second cutout. A cover is provided to cover the top of the second pickup in its retreated position. The cover has a cover piece, which is disposed in a front portion of the cover that is positioned on the upstream side relative to the rotational direction of a disk-shaped recording medium such that it is movable in a direction parallel to the direction in which the second pickup moves, and urged in the projecting direction.

REFERENCES:
patent: 5675566 (1997-10-01), Kosaka et al.
patent: 5677904 (1997-10-01), Yokota et al.
patent: 5790511 (1998-08-01), Juso et al.
patent: 6185180 (2001-02-01), Morishita
patent: 6430143 (2002-08-01), Kajiyama et al.
patent: 6964056 (2005-11-01), Obata et al.
patent: 7137129 (2006-11-01), Obata et al.
patent: 7188349 (2007-03-01), Ezawa et al.
patent: 2002/0021648 (2002-02-01), Shiomi et al.
patent: 2004/0066712 (2004-04-01), Mitsumoto et al.
patent: 2004/0213152 (2004-10-01), Matuoka et al.
patent: 2004/0255310 (2004-12-01), Obata et al.
patent: 1434220 (2004-06-01), None
patent: 1435615 (2004-07-01), None
patent: 06/005062 (1994-01-01), None
patent: 06/274917 (1994-09-01), None
patent: 08007430 (1996-01-01), None
patent: 2003/100004 (2003-04-01), None
patent: 2003/100007 (2003-04-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Disk drive unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disk drive unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk drive unit will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3955343

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.