Robert L Day

US Patent:

6646013, Nov 11, 2003

Filed:

Jun 15, 2000

Appl. No.:

09/596036

Inventors:

Anna D. Barker - Portland OR
Robert W. Day - Seattle WA
Anthony J. Dennis - Portland OR
Norman R. Farnsworth - Downers Grove IL
Julie A. Haack - Eugene OR
Joseph M. McCord - Denver CO
John D. Potter - Seattle WA

Assignee:

Nutri-Logics - San Fransisco CA

International Classification:

A61K 3105

US Classification:

514731, 514730, 514728, 514717, 514678, 514725, 514258, 514248, 514458, 514562, 514 25

Abstract:

The instant invention provides a combination of multiple nutrients useful to reduce colon rectal cancer in a mannalian or human subject. Further, the combination provides synergistic ratios of the useful nutrients.

US Patent:

48888613, Dec 26, 1989

Filed:

Oct 10, 1985

Appl. No.:

6/786384

Inventors:

Robert A. Day - Livermore CA

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

H01L 4122
H01L 4104

US Classification:

29 2535

Abstract:

A method for manufacturing an annular acoustic transducer array from a plate of transducer material, which enables production of precision aligned arrays at low cost. The circular plate is sawed along at least two lines that are radial to the axis of the plate. At steps along each radial cut, the plate is rotated first in one direction and then in an opposite direction by a predetermined angle such as slightly less than 90. degree. The cuts result in the forming of several largely ring-shaped lands, each largely ring-shaped land being joined to the other rings of different radii by thin portions of the plate, and each ring being cut into segments. The bridges that join different rings, hold the transducer together until it can be mounted on a lens.

US Patent:

45516472, Nov 5, 1985

Filed:

Mar 8, 1983

Appl. No.:

6/472871

Inventors:

Robert A. Day - Livermore CA

Assignee:

General Electric Company - San Jose CA

International Classification:

H01L 4108
H04R 1700

US Classification:

310335

Abstract:

An ultrasonic transducer for use in a high temperature environment and method for fabricating the same. A disk-shaped piezoelectric crystal is weakened in at least one surface in accordance with a predetermined line pattern relative to a first direction in that surface. The crystal is bonded to a thin lens material with a coefficient of thermal expansion dissimilar in this first direction. The predetermined line pattern is adapted to relieve stress in this first direction created by unequal rates of expansion or contraction of the crystal and the lens.

US Patent:

41899440, Feb 26, 1980

Filed:

Nov 3, 1978

Appl. No.:

5/957620

Inventors:

Robert A. Day - Livermore CA
Armond E. Conti - San Jose CA

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

G01N 2904

US Classification:

73623

Abstract:

An improved probe for in-service ultrasonic inspection of long lengths of a workpiece, such as small diameter tubing from the interior. The improved probe utilizes a conventional transducer or transducers configured to inspect the tubing for flaws and/or wall thickness variations. The probe utilizes a hydraulic technique, in place of the conventional mechanical guides or bushings, which allows the probe to move rectilinearly or rotationally while preventing cocking thereof in the tube and provides damping vibration of the probe. The probe thus has lower friction and higher inspection speed than presently known probes.

US Patent:

40621057, Dec 13, 1977

Filed:

Dec 20, 1976

Appl. No.:

5/752571

Inventors:

Robert A. Day - Livermore CA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

H04R 3100

US Classification:

29594

Abstract:

A method for fabricating ferroelectric ultrasonic transducers by directing beam of electrons at a disk of ferroelectric material to produce a thin plate throughout which the Curie temperature is exceeded, and by applying a high DC Voltage across the faces of the disk while the Curie temperature is exceeded to polarize the thin plate.