Stephen F Martin

US Patent:

6339516, Jan 15, 2002

Filed:

Feb 7, 2000

Appl. No.:

09/499228

Inventors:

Stephen Robert Martin - Louisville CO
Brenda Kaye Drake - Louisville CO

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 1702

US Classification:

360 9912, 2960303

Abstract:

The performance of a leaf spring disc clamp can be enhanced by increasing the flatness of an annular contact surface while the clamp is in its fully deflected, installed position. Such a disc clamp exhibits substantially improved flatness at a minor expense in applied axial force. It has been determined that a lapping process can be used to achieve a desired level of performance without fully deflecting the clamp prior to installation in a disc pack.

US Patent:

6456456, Sep 24, 2002

Filed:

May 1, 1998

Appl. No.:

09/071096

Inventors:

Alan D. Romig - Broomfield CO
Stephen R. Martin - Louisville CO

Assignee:

Syquest Technology, Inc. - Fremont CA

International Classification:

G11B 5016

US Classification:

360 9902, 360 9906

Abstract:

A disk drive capable of receiving a cartridge having a disk with a diameter of about 3. 5 inches which can contain at least 105 megabytes of data includes an operating mechanism for initiating and controlling the positioning of an actuator arm upon which is mounted a read/write transducer. The position of a spindle motor which is used to spin up the disk contained in the cartridge to an operating speed, the locking of the cartridge in the disk drive in an operating mode and the ejection of the cartridge from the drive. The operating mechanism can function to eject the cartridge whether or not the drive is powered up in order to be able to remove the cartridge and transport it to another disk drive or to a secured location in a plane substantially parallel to the disk contained in the cartridge. The cartridge includes a mounting mechanism for accomplishing the motion of the door from the closed to the opened position and locking mechanism for locking the door in the closed position. Further, the cartridge includes a groove which extends rearwardly and across the cartridge in order to lockingly engage the cartridge in the drive.

US Patent:

6483661, Nov 19, 2002

Filed:

Oct 11, 2000

Appl. No.:

09/686551

Inventors:

Stephen Robert Martin - Louisville CO 80027
Brenda Kaye Drake - Louisville CO 80027

International Classification:

G11B 1702

US Classification:

360 9912, 360 9808

Abstract:

The performance of a leaf spring disc clamp can be enhanced by increasing the flatness of an annular contact surface while the clamp is in its fully deflected, installed position. Such a disc clamp exhibits substantially improved flatness at a minor expense in applied axial force. It has been determined that a lapping process can be used to achieve a desired level of performance without fully deflecting the clamp prior to installation in a disc pack. The performance of the disc clamp may be further enhanced by providing one or more slots within a central portion of the disc clamp and joining the slots with a central aperture in the central portion in order to more uniformly distribute the clamping force around a peripheral portion of the disc clamp and thereby improve disc flatness during disc drive operation.

US Patent:

20090021859, Jan 22, 2009

Filed:

Jul 19, 2007

Appl. No.:

11/880419

Inventors:

Stephen R. Martin - Louisville CO, US

International Classification:

G11B 17/02

US Classification:

360 9908

Abstract:

Accurately formed critical tolerance fit components are provided for fluid dynamic bearing motors, including disc drive memory systems. In an aspect, critical tolerance fit components are molded to a metal insert and include a portion of a hub, a disc seating surface, and a disc locating surface. The insert includes another portion of a hub, a sleeve, or a disc clamp retainer for a novel disc clamp. In an aspect, the plastic component is situated to cause the thermal expansion of the plastic to be restricted by the thermal expansion of a metal insert. Expensive machining of a stamped metal hub is minimized or eliminated by using the molded component portions. Strict component tolerances are provided as needed for perpendicularity relative to motor rotation for seating a disc with accurate flatness, a circumferential surface for centering the disc, and tight parallelism between a disc mounting surface and a center shaft.

US Patent:

D4497139, Oct 23, 2001

Filed:

Aug 25, 2000

Appl. No.:

D/128541

Inventors:

Jack L. Martin - Libertyville IL
Stephen E. Martin - Libertyville IL

Assignee:

Libertyville, Saddle Shop, Inc. - Libertyville IL

International Classification:

2902

US Classification:

D29102

US Patent:

6290650, Sep 18, 2001

Filed:

May 28, 1999

Appl. No.:

9/321907

Inventors:

Robert D. Butterfield - Poway CA
Kenneth J. Pytel - San Diego CA
Charles R. Holdaway - San Diego CA
Stephen A. Martin - Carlsbad CA

Assignee:

Alaris Medical Systems, Inc. - San Diego CA

International Classification:

A61B 502

US Classification:

600485

Abstract:

A system for noninvasively continuously monitoring arterial blood pressure includes a tissue stress sensor that has a continuous diaphragm for sensing stress within tissue adjacent a preselected artery caused by arterial pulsations within that artery. The stress sensitive diaphragm is coupled with electromechanical means for producing electrical signals that represent the stress within the tissue that is communicated to the sensor. These signals are then processed electronically in order to yield an output that is indicative of the arterial blood pressure of the preselected artery. The disclosed system includes methods of operation for determining blood pressure while maintaining a preselected artery in an optimum applanation state and an off-optimum applanation state.

US Patent:

56178670, Apr 8, 1997

Filed:

Nov 23, 1994

Appl. No.:

8/344252

Inventors:

Robert D. Butterfield - Poway CA
Charles R. Holdaway - San Diego CA
Stephen A. Martin - San Diego CA
Stanley J. Boyer - Carlsbad CA

Assignee:

IVAC Medical Systems, Inc. - San Diego CA

International Classification:

A61B 500

US Classification:

128672

Abstract:

A device for mounting a tonometry sensor upon a patient's wrist includes a base portion that is specifically adapted to generally conform to the patient's wrist while providing a stable placement of the tonometry sensor relative to a preselected artery. A sensor housing is movably mounted upon the base portion and configured such that the mounting device has an essentially equal thickness at each end of the device. A strap member is provided for releasably securing the mounting device to a patient's wrist. The mounting device facilitates more accurate, non-invasive blood pressure measurement by providing a stable placement of the tonometry sensor relative to the tissue overlying a preselected artery at a measurement location and, further, limits undesirable movement by the patient to thereby reduce undesirable error in the blood pressure measurement.

US Patent:

D3420620, Dec 7, 1993

Filed:

Oct 15, 1991

Appl. No.:

7/776459

Inventors:

Stephen R. Martin - Louisville CO

Assignee:

SyQuest Technology, Inc. - Fremont CA

US Classification:

D14114

Address:

11786 Gray Way, Westminster, CO 80020

Phone:

3039190150

VIN:

5XYZGDAG5CG145345

Make:

HYUNDAI

Model:

SANTA FE

Year:

2012