Joe Christino Garcia

US Patent:

41328906, Jan 2, 1979

Filed:

Nov 22, 1977

Appl. No.:

5/853921

Inventors:

Joe L. Garcia - Arvada CO
Paul Y. Hu - Boulder CO
Tracy N. Waller - Broomfield CO

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G01D 536

US Classification:

250231SE

Abstract:

The disclosure describes an electro-optical tachometer assembly for use with a device having a movable part and a fixed part (for example, a motor, an electrophotographic system, etc). The electro-optical tachometer assembly comprises a movable assembly and a fixed assembly. The movable assembly includes a movable disk while the fixed assembly includes a fixed mask. A gap between the movable disk and the fixed mask is preset by a spacer assembly. The gap is maintained constant by a resilient member which loads the fixed assembly against the movable assembly. A light emitting diode (LED) phototransistor assembly is situated relative to the tachometer assembly and outputs electrical signals indicative of shaft speed, direction of shaft rotation, etc. Synchronization of the tachometer output to the shaft is accomplished by a guide pin arrangement.

US Patent:

40721019, Feb 7, 1978

Filed:

May 27, 1976

Appl. No.:

5/690770

Inventors:

Joe La Garcia - Arvada CO
Brandt M. Griffing - Arcadia FL
Paul Y. Hu - Boulder CO
Richard G. Millington - Longmont CO

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

B41J 904

US Classification:

101 9315

Abstract:

A linear actuator for positioning a print assembly parallel to a line on which characters are being printed is disclosed. The linear actuator includes a three-sided open structure magnetic circuit fabricated from rectangular pieces of slab magnets positioned about a central return path. The print assembly is seated on the open side of said linear actuator. Cooling for the actuator is achieved by pulling air in a direction perpendicular to the direction of motion of said print assembly.

Address:

906 W Ellaine Ave, Pasadena, TX 77506

VIN:

1GKFC16018J188665

Make:

GMC

Model:

YUKON XL

Year:

2008