Stuart B Brown

US Patent:

6349588, Feb 26, 2002

Filed:

Mar 20, 2000

Appl. No.:

09/531475

Inventors:

Stuart B. Brown - Needham MA
Christopher L. Muhlstein - Brookline MA
Kevin R. Lynch - Somerville MA
Richard Mlcak - Cambridge MA
Paulo Jorge Furtado Correia - Cambridge MA

Assignee:

Exponent Inc. - Menlo Park CA

International Classification:

G01N 1904

US Classification:

73 37, 73150 A, 73 375

Abstract:

A system and corresponding method for bulge testing films (e. g. thin films, coatings, layers, etc. ) is provided, as well as membrane structures for use in bulge testing and improved methods of manufacturing same so that resulting membrane structures have substantially identical known geometric and responsive characteristics. Arrayed membrane structures, and corresponding methods, are provided in certain embodiments which enable bulge testing of a film(s) over a relatively large surface area via a plurality of different freestanding membrane portions. Improved measurements of film bulging or deflection are obtained by measuring deflection of a center point of a film, relative to non-deflected peripheral points on the film being tested. Furthermore, membrane structures are adhered to mounting structure in an improved manner, and opaque coatings may be applied over top of film(s) to be bulge tested so that a corresponding optical transducer can more easily detect film deflection/bulging. In certain embodiments, a laser triangulation transducer is utilized to measure film deflection/bulging.

US Patent:

7605482, Oct 20, 2009

Filed:

Dec 7, 2007

Appl. No.:

11/952235

Inventors:

Stuart B. Brown - Needham MA, US
Brian S. Hendrickson - Boston MA, US

Assignee:

Veryst Engineering LLC - Needham MA

International Classification:

F02B 63/04
F03G 7/08
H02K 7/18

US Classification:

290 1R

Abstract:

An energy harvester is provided for converting an input force into electrical energy and also allowing for energy to be stored and then released at a later time. The energy harvester includes a receiver, energy collector, converter, and holder, and operates in three stages. The receiver receives the input force and the energy collector is moved by the receiver with an input displacement. The energy collector is then held in a catch position. The input force changes direction, and the energy collector is released by the holder and moves with an output displacement that is different from the input displacement. The converter generates electrical energy from the motion created.

US Patent:

7626279, Dec 1, 2009

Filed:

Dec 7, 2007

Appl. No.:

11/952244

Inventors:

Stuart B. Brown - Needham MA, US
Brian S. Hendrickson - Boston MA, US

Assignee:

Veryst Engineering LLC - Needham MA

International Classification:

F02B 63/04
F03G 7/08
H02K 7/18

US Classification:

290 1R

Abstract:

An energy harvester is provided for converting an input force into electrical energy and also allowing for energy to be stored and then released at a later time. The energy harvester includes a receiver, energy collector, converter, and holder, and operates in three stages. The receiver receives the input force and the energy collector is moved by the receiver with an input displacement. The energy collector is then held in a catch position. The input force changes direction, and the energy collector is released by the holder and moves with an output displacement that is different from the input displacement. The converter generates electrical energy from the motion created.

US Patent:

7740595, Jun 22, 2010

Filed:

Jul 28, 2003

Appl. No.:

10/629048

Inventors:

Stuart Brown - Needham MA, US

International Classification:

A61B 10/00

US Classification:

600565, 600566

Abstract:

An instrument for removing a tissue sample from a subject comprises a plurality of tissue sampling devices having respective chambers, the tissue sampling devices being radially disposed along a length of the instrument such that upon insertion of the instrument into the subject one or more samples are extracted and isolated in the respective chambers of the sampling devices at the site at which removal occurs.

US Patent:

8217523, Jul 10, 2012

Filed:

Jan 14, 2009

Appl. No.:

12/353788

Inventors:

Stuart B. Brown - Needham MA, US
Brian S. Hendrickson - Boston MA, US

Assignee:

Veryst Engineering LLC - Needham MA

International Classification:

F02B 63/04
F03G 7/08
H02K 7/18
A61N 1/00

US Classification:

290 1R, 607 35

Abstract:

An energy harvesting mechanism creates electrical energy from in vivo physiological motion, transforming low frequency, physiological excitation into high frequencies for producing electricity and harvesting energy using an energy collector is deformed from variation of physiologic forces or motion with an input displacement, then captured, and then released to allow the energy collector to move with an output displacement being either faster or has a higher frequency, or both, when compared to the input displacement.

US Patent:

20060102597, May 18, 2006

Filed:

Nov 16, 2004

Appl. No.:

10/988999

Inventors:

Stuart Brown - Needham MA, US
Jason Clevenger - Watertown MA, US
Patricio Mendez - Lakewood CO, US

International Classification:

B23K 15/00

US Classification:

219121140, 219121130

Abstract:

Electron beam welding of a thin layer to a substrate is accomplished using controlled volumetric heating of the respective substrate layers, thus minimizing gradients due to heat conduction. Electron beam penetration of the layers and velocity across the surface creates a rapidly translating weld pool within the substrates. The control parameters for the electron beam source are dependent on the heat characteristics of the substrate materials, their thickness, available electron beam power and speed, and desired finished weld geometry. The Peclet number maintained during the process is greater than about 1 and less than about 10.

US Patent:

58876405, Mar 30, 1999

Filed:

Oct 4, 1996

Appl. No.:

8/726099

Inventors:

Stuart B. Brown - Needham MA
Patricio F. Mendez - Cambridge MA
Christpher S. Rice - Cambridge MA
Shinya Myojin - Cambridge MA

Assignee:

Semi-Solid Technologies Inc. - Cambridge MA

International Classification:

B22D 100

US Classification:

164133

Abstract:

An apparatus and process is provided for producing semi-solid material suitable for directly casting into a component wherein the semi-solid material is formed from a molten material and the molten material is introduced into a container. Semi-solid is produced therefrom by agitating, shearing, and thermally controlling the molten material. The semi-solid material is maintained in a substantially isothermal state within the container by appropriate thermal control and thorough three dimensional mixing. Extending from the container is a means for removing the semi-solid material from the container, including a temperature control mechanism to control the temperature of the semi-solid material within the removing means.

US Patent:

63215942, Nov 27, 2001

Filed:

Mar 20, 2000

Appl. No.:

9/531474

Inventors:

Stuart B. Brown - Needham MA
Christopher L. Muhlstein - Brookline MA
Kevin R. Lynch - Somerville MA
Richard Mlcak - Cambridge MA
Paulo Jorge Furtado Correia - Cambridge MA

Assignee:

Exponent, Inc. - CA

International Classification:

G01N 310

US Classification:

73150

Abstract:

A system and corresponding method for bulge testing films (e. g. thin films, coatings, layers, etc. ) is provided, as well as membrane structures for use in bulge testing and improved methods of manufacturing same so that resulting membrane structures have substantially identical known geometric and responsive characteristics. Arrayed membrane structures, and corresponding methods, are provided in certain embodiments which enable bulge testing of a film(s) over a relatively large surface area via a plurality of different freestanding membrane portions. Improved measurements of film bulging or deflection are obtained by measuring deflection of a center point of a film, relative to non-deflected peripheral points on the film being tested. Furthermore, membrane structures are adhered to mounting structure in an improved manner, and opaque coatings may be applied over top of film(s) to be bulge tested so that a corresponding optical transducer can more easily detect film deflection/bulging. In certain embodiments, a laser triangulation transducer is utilized to measure film deflection/bulging.