Daniel S Chapman

US Patent:

62268910, May 8, 2001

Filed:

Jul 11, 2000

Appl. No.:

9/613490

Inventors:

Daniel R. Chapman - Corinth TX

International Classification:

F26B 700

US Classification:

34508

Abstract:

In the present method of drying iron ore pellets, e. g. , magnetite pellets, moisture-containing iron ore pellets are formed into a bed comprising a multiplicity of the pellets. A current of drying gas is forced upwardly through the bed of pellets to at least partially dry some of the pellets. Radiant heat reflectors above the bed reflect heat back onto the pellets with air jets simultaneously directing air downwardly onto the top surface of the bed. Air is forced between the reflectors are placed and onto the bed to, especially below the firebrick wall between the end of the updraft drying zone and the downdraft drying zone. Water is applied to the hot pellets to produce steam as well as water vapor which is added to a current of air to produce a stream of hot, humid air that is passed through the bed to improve pellet characteristics and recover waste heat. Air supplied at a selected point is cut off responsive to the presence of a blow hole in the bed so as to improve drying efficiency and improve uniformity of drying.

US Patent:

53282728, Jul 12, 1994

Filed:

Dec 23, 1991

Appl. No.:

7/813311

Inventors:

Norman G. Ainslie - Anacortes WA
David W. Albrecht - San Jose CA
James W. Berberich - San Jose CA
Daniel W. Chapman - San Jose CA
Mats A. Engwall - Hollister CA
Richard E. Mach - Los Gatos CA
Zack D. Reynolds - San Jose CA

Assignee:

International Business Machines - Armonk NY

International Classification:

F16C 1710

US Classification:

384112

Abstract:

A spindle system is comprised of a journal and thrust air bearing. The journal bearing has two sets of opposing groove areas. The thrust air bearing has two sets of spiral grooves. The thrust air bearing is gimballed to compensate for misalignment. A bias contact member is connected to the rotating member along the axis of rotation and provides electrical grounding. The spindle system is especially applicable to mounting recording disks in a data storage disk drive.

US Patent:

54305900, Jul 4, 1995

Filed:

Feb 14, 1994

Appl. No.:

8/195793

Inventors:

Norman G. Ainslie - Anacortes WA
David W. Albrecht - San Jose CA
James W. Berberich - San Jose CA
Daniel W. Chapman - San Jose CA
Mats A. Engwall - Hollister CA
Richard E. Mach - Los Gatos CA
Zack D. Reynolds - San Jose CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 1708
F16C 1710

US Classification:

360 9807

Abstract:

A spindle system is comprised or a journal and thrust air bearing. The journal bearing; has two sets of opposing groove areas. The thrust air bearing has two sets of spiral grooves. The thrust air bearing is gimballed to compensate for misaligment. A bias contact member is connected to the rotating member along the axis of rotation and provides electrical grounding, The spindle system is especially applicable to mounting recording disks in a data storage disk drive.

US Patent:

47899140, Dec 6, 1988

Filed:

Oct 28, 1986

Appl. No.:

6/923942

Inventors:

Norman G. Ainslie - Croton-on-Hudson NY
Vlasta A. Brusic - Amawalk NY
Daniel W. Chapman - San Jose CA
Lubomyr T. Romankiw - Briarcliff Manor NY
Richard K. Wilmer - San Jose CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 548

US Classification:

360103

Abstract:

A thin film magnetic read/write head/arm assembly and method of manufacturing the same is disclosed herein. Contact soldering of the opposite to disk side of the read/write head to a cable in laminate relationship to the suspension arm, or a polyimide strip with conductors deposited thereon provides both electrical interconnection and mechanical support. Semiconductor devices can also be intermediately soldered between the head and cable for maximum noise suppression.