Michael W Mcelfresh

US Patent:

7183765, Feb 27, 2007

Filed:

Jun 28, 2004

Appl. No.:

10/879222

Inventors:

Michael McElfresh - Livermore CA, US
Matthew Lucas - Pittsburgh PA, US
Joseph P. Silveira - Tracy CA, US
Scott E. Groves - Brentwood CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

G01R 33/032
G01B 7/14

US Classification:

3242441, 32420726

Abstract:

A micro-position sensor and sensing system using the Faraday Effect. The sensor uses a permanent magnet to provide a magnetic field, and a magneto-optic material positioned in the magnetic field for rotating the plane of polarization of polarized light transmitted through the magneto-optic material. The magnet is independently movable relative to the magneto-optic material so as to rotate the plane of polarization of the polarized light as a function of the relative position of the magnet. In this manner, the position of the magnet relative to the magneto-optic material may be determined from the rotated polarized light. The sensing system also includes a light source, such as a laser or LED, for producing polarized light, and an optical fiber which is connected to the light source and to the magneto-optic material at a sensing end of the optical fiber. Processing electronics, such as a polarimeter, are also provided for determining the Faraday rotation of the plane of polarization of the back-reflected polarized light to determine the position of the magnet relative to the sensing end of the optical fiber.

US Patent:

20040265150, Dec 30, 2004

Filed:

May 28, 2004

Appl. No.:

10/857571

Inventors:

Michael McElfresh - Livermore CA, US
Matthew Lucas - Pasadena CA, US

Assignee:

The Regents of the University of California

International Classification:

F04B001/00
F15B005/00

US Classification:

417/413100, 251/129010, 251/331000, 417/053000, 137/416000, 417/413200

Abstract:

The present invention provides a membrane with magnetic particles. In one embodiment the membrane is created by mixing particles in a non-magnetic base. The membrane may act as an actuator, a sensor, a pump, a valve, or other device. A magnet is operatively connected to the membrane. The magnet acts on and changes the shape of the membrane.

US Patent:

20130228067, Sep 5, 2013

Filed:

Mar 1, 2012

Appl. No.:

13/410140

Inventors:

Michael W. McElfresh - Livermore CA, US
Scott E. Groves - Brentwood CA, US
Mtichell L. Moffet - Tracy CA, US
Louis P. Martin - San Ramon CA, US

International Classification:

F41H 5/04
B32B 33/00

US Classification:

89 3602, 264261, 89910, 89907, 89912, 89922

Abstract:

A lightweight armor system utilizing a face section having a multiplicity of monoliths embedded in a matrix supported on low density foam. The face section is supported with a strong stiff backing plate. The backing plate is mounted on a spall plate.

US Patent:

55343600, Jul 9, 1996

Filed:

Jun 22, 1994

Appl. No.:

8/264238

Inventors:

Richard J. Gambino - Yorktown Heights NY
Michael W. McElfresh - West Lafayette IN
Thomas R. McGuire - Yorktown Heights NY
Thomas S. Plaskett - Katonah NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 566

US Classification:

428694ML

Abstract:

An amorphous alloy containing uranium and a member selected from the group of N, P, As, Sb, Bi, S, Se, Te, Po and mixtures thereof; and use thereof for storage medium, light modulator or optical isolator.

US Patent:

20210106677, Apr 15, 2021

Filed:

Nov 13, 2018

Appl. No.:

16/826529

Inventors:

- Livermore CA, US
Michael McElfresh - Livermore CA, US

Assignee:

MatSfide, Inc. - Livermore CA

International Classification:

A61K 39/385

Abstract:

A method of eliciting immune responses using synthetic antigens involves generating a substitute antigen configured for a foreign molecule, generating a synthetic high affinity ligand molecule (SHAL) comprising at least one ligand configured to bind to an antigen presenting cell (APC) and at least one ligand specifically configured to bind with the substitute antigen, combining the SHAL with the substitute antigen through a chemical reaction forming an antigen presenting complex, introducing the antigen presenting complex to a user without an immune response to the foreign molecule.