Glade N Bagnell

US Patent:

6687215, Feb 3, 2004

Filed:

Apr 12, 2000

Appl. No.:

09/548128

Inventors:

Glade Bagnell - Longmont CO
Thomas E. Berg - Fort Collins CO
David William Niss - Boulder CO
Robert David Freeman - Erie CO
Edwin J. Wadsworth - Longmont CO

Assignee:

DPHI Acquisitions, Inc. - Boulder CO

International Classification:

G11B 2303

US Classification:

369291

Abstract:

Various configurations of cartridges for optical disks, particularly first-surface optical disks, are provided. The cartridges include a plurality of protectors for use in safeguarding the optical disk when certain conditions are present or certain events occur. The protectors include an elongated shutter that covers the hub assembly, at least annular slot portions inside of the cartridge to restrain movement of the disk within the cartridge, a locking subassembly to hold the shutter in a desired position, and a mechanism for preventing complete insertion of the cartridge into an optical drive when the cartridge is in the wrong orientation relative to the drive.

US Patent:

6809903, Oct 26, 2004

Filed:

Dec 5, 2000

Appl. No.:

09/730647

Inventors:

Glade N. Bagnell - Longmont CO
Christopher F. Banks - Rollinsville CO
Edwin J. Wadsworth - Longmont CO

Assignee:

DPHI Acquisitions, Inc. - Boulder CO

International Classification:

G11B 2303

US Classification:

360133, 720739

Abstract:

A first-surface optical disk including features, such as a slot defined on an edge of the housing for providing clearance for a blocking tab in a drawer mechanism so as to allow the cartridge assembly to be fully inserted into the drawer mechanism when the shutter member is in the second position.

US Patent:

6829120, Dec 7, 2004

Filed:

Sep 4, 2001

Appl. No.:

09/946845

Inventors:

Glade N. Bagnell - Longmont CO
Robert D. Freeman - Erie CO
Joseph P. Manes - Arvada CO
Stephen A. Misuta - Superior CO
Shane G. Nowell - Longmont CO
Brian L. Rappel - Lyons CO
Edwin J. Wadsworth - Longmont CO

Assignee:

DPHI Acquisitions, Inc. - Boulder CO

International Classification:

G11B 1704

US Classification:

360 9906

Abstract:

A disk drive includes a housing, a cartridge tray, and a cam plate. The cartridge tray is adapted to hold a cartridge that includes a data storage disk. The housing has a pair of vertical cartridge tray pin slots which hold tray pins that are part of the cartridge tray. The cam plate includes a pair of cam slots formed at an oblique angle to the cartridge tray pin slots. The tray pins extend through the cam slots into the cartridge tray pin slots. Movement of the cam plate back and forth causes the tray pins and cartridge tray to move vertically between a loaded position, where data can be read from or written to the data storage disk, to an unloaded position. The use of two cartridge tray pins allows the cartridge tray to rotate about an axis defined by the tray pins, and this action assists in locating the cartridge precisely in a repeatable position, in contact with a plurality of datums, when it is fully loaded.

US Patent:

6906892, Jun 14, 2005

Filed:

Sep 4, 2001

Appl. No.:

09/947004

Inventors:

Glade N. Bagnell - Longmont CO, US
Robert D. Freeman - Erie CO, US
Joseph P. Manes - Arvada CO, US
Stephen A. Misuta - Superior CO, US
Shane G. Nowell - Longmont CO, US
Brian L. Rappel - Lyons CO, US
Edwin J. Wadsworth - Longmont CO, US

Assignee:

DPHI Aquisitions, Inc. - Boulder CO

International Classification:

G11B017/08
G11B021/02

US Classification:

360 9908, 720675

Abstract:

A data storage cartridge is positioned in a disk drive. The cartridge is positioned in the X and Y dimensions by contact between an alignment opening in the cartridge and an XY alignment pin in the disk drive and in the theta (rotational) dimension by contact between an edge of the cartridge and a theta datum in the disk drive. The cartridge is positioned in the Z dimension by contact between the cartridge and at least three Z datums.

US Patent:

20020126614, Sep 12, 2002

Filed:

Sep 4, 2001

Appl. No.:

09/947313

Inventors:

Glade Bagnell - Longmont CO, US
Joseph Manes - Arvada CO, US
Shane Nowell - Longmont CO, US
Brian Rappel - Lyons CO, US
Edwin Wadsworth - Longmont CO, US

Assignee:

DataPlay, Inc.

International Classification:

G11B033/02

US Classification:

369/077200

Abstract:

A disk drive for a data storage cartridge includes a picker arm for opening a shutter on the cartridge, thereby exposing a data storage disk, as said cartridge is inserted into said disk drive. The picker arm is pivotable about a pin and is spring-biased to an extended position such that the picker arm points generally towards a door of said disk drive. The picker arm has a feature adapted to engage the shutter when the cartridge is inserted into said disk drive. The picker arm rotates about the pin from the extended position to a retracted position, the shutter being in an open position when engaged by the picker arm in its retracted position.

US Patent:

20020131201, Sep 19, 2002

Filed:

Sep 4, 2001

Appl. No.:

09/947151

Inventors:

Glade Bagnell - Longmont CO, US
Robert Freeman - Erie CO, US
Joseph Manes - Arvada CO, US
Stephen Misuta - Superior CO, US
Shane Nowell - Longmont CO, US
Brian Rappel - Lyons CO, US
Edwin Wadsworth - Longmont CO, US

Assignee:

DataPlay, Inc.

International Classification:

G11B017/04

US Classification:

360/099060

Abstract:

A disk drive contains a pair of spring elements which act as eject limiters, engaging catches on a cartridge to prevent the cartridge from being completely ejected from the drive. The cartridge contains a data storage disk which could be damaged if, for example, the cartridge were to fall to the floor. After the cartridge has been retained by the eject limiters, the user may manually withdraw the cartridge from the disk drive.

US Patent:

52239934, Jun 29, 1993

Filed:

Nov 3, 1989

Appl. No.:

7/431575

Inventors:

John P. Squires - Boulder CO
Glade N. Bagnell - Longmont CO
Charles M. Sander - Longmont CO
Kurt M. Anderson - Louisville CO

Assignee:

Conner Peripherals, Inc. - San Jose CA

International Classification:

G11B 5596

US Classification:

360 7708

Abstract:

A multiple actuator disk drive utilizes multiple heads, associated with respective ones of multiple actuators, to read data from and write data to all tracks on the surface of a disk. The positioning of each head by the respective actuators is controlled by embedded servo-information recorded in the data tracks. The data tracks have a density of greater than 2000 tracks per inch. Utilizing two actuators provides access times which are reduced with respect to the access times provided by disk drives having a single actuator and an increased data transfer rate.

US Patent:

57965579, Aug 18, 1998

Filed:

Dec 6, 1995

Appl. No.:

8/567859

Inventors:

Glade N. Bagnell - Longmont CO
William F. Repphun - Boulder CO

Assignee:

Seagate Technology, Inc. - Scotts Valley CA

International Classification:

G11B 554
G11B 2122

US Classification:

360105

Abstract:

A half-height, 31/2-inch form factor disk drive architecture. The architecture includes at least six storage disks for storing data and a plurality of interactive read/write heads, two per disk, for reading information from and writing information on the storage disks. An actuator assembly, responsive to control signals, for selectively positioning the read/write heads with respect to the storage disks, and a latching mechanism are also included. Control electronics are provided on a printed circuit board to generate control signals to control the actuator means, and to provide information signals to and receive information signals from the read/write heads. The architecture also includes a housing defining the maximum height, length, and width of the disk drive, the housing having a maximum height of approximately one and 65/100 ths inches (1. 65"), and including: a base having a first side and a second side, the base for supporting the storage disks about a first support post, the base supporting the actuator assembly about a second support post; a cover secured to the first and second support posts and sealably attached to the top of the base to enclose the storage disks, the interactive read/write heads, and the actuator assembly; and a shock frame, having a first and second sides mounted adjacent the first and second sides of the base, the shock frame secured to the cover.