Eugene C Cook

US Patent:

7874407, Jan 25, 2011

Filed:

Jun 15, 2007

Appl. No.:

11/818582

Inventors:

Norman M. Wereley - Potomac MD, US
Wei Hu - Rockville MD, US
Eugene Cook - Boston MA, US
Alan L. Browne - Grosse Pointe MI, US

Assignee:

University of Maryland - College Park MD
GM Research & Development - Warren MI

International Classification:

F16F 9/53
F16F 15/03

US Classification:

1882672, 188267

Abstract:

A magnetorheological fluid damping system includes a hydraulic cylinder, a piston head, a piston rod, and a porous valve. The hydraulic cylinder is configured for disposing magnetorheological fluid therein. The piston head is disposed within the hydraulic cylinder and has first and second sides defining first and second chambers within the hydraulic cylinder. The piston head is configured to be in sliding engagement with the hydraulic cylinder. The piston rod is connected to the piston head. The porous valve includes a magnetorheological fluid pathway, has first and second fluid connections, and is configured to dampen the flow of the magnetorheological fluid between the first and second fluid connections in accordance with a magnetic field. The first fluid connection is fluidly connected to the first chamber and the second fluid connection is fluidly connected to the second chamber. The magnetorheological fluid pathway at least partially directs magnetorheological fluid flow through a porous media.

US Patent:

20200115219, Apr 16, 2020

Filed:

Dec 13, 2019

Appl. No.:

16/713177

Inventors:

- Arlington VA, US
- Cambridge MA, US
Eugene A. Imhoff - Washington DC, US
Eugene Cook - Acton MA, US
Jonathan Bernstein - Medfield MA, US
Marc Weinberg - Needham MA, US

Assignee:

The Government of the United States of America, as represented by the Secretary of the Navy - Arlington VA
The Charles Stark Draper Company - Cambridge MA

International Classification:

B81B 3/00
G01C 19/5656
G01C 19/5621
G01C 19/56
B81C 1/00
G01C 19/5783
B81B 7/00

Abstract:

Electromechanical device structures are provided, as well as methods for forming them. The device structures incorporate at least a first and second substrate separated by an interface material layer, where the first substrate comprises an anchor material structure and at least one suspended material structure, optionally a spring material structure, and optionally an electrostatic sense electrode. The device structures may be formed by methods that include providing an interface material layer on one or both of the first and second substrates, bonding the interface materials to the opposing first or second substrate or to the other interface material layer, followed by forming the suspended material structure by etching.

US Patent:

20180086625, Mar 29, 2018

Filed:

Sep 7, 2017

Appl. No.:

15/698604

Inventors:

- Arlington VA, US
- Cambridge MA, US
Eugene A. IMHOFF - Washington DC, US
Eugene COOK - Melrose MA, US
Jonathan BERNSTEIN - Medfield MA, US
Marc WEINBERG - Needham MA, US

Assignee:

The Government of the United States of America, as Represented by the Secretary of the Navy - Arlington VA
The Charles Stark Draper Laboratory, Inc. - Cambridge MA

International Classification:

B81B 3/00
B81C 1/00
G01C 19/5656
G01C 19/5621
G01C 19/56

Abstract:

Electromechanical device structures are provided, as well as methods for forming them. The device structures incorporate at least a first and second substrate separated by an interface material layer, where the first substrate comprises an anchor material structure and at least one suspended material structure, optionally a spring material structure, and optionally an electrostatic sense electrode. The device structures may be formed by methods that include providing an interface material layer on one or both of the first and second substrates, bonding the interface materials to the opposing first or second substrate or to the other interface material layer, followed by forming the suspended material structure by etching.

US Patent:

20160341552, Nov 24, 2016

Filed:

May 20, 2016

Appl. No.:

15/160433

Inventors:

- Cambridge MA, US
- Arlington VA, US
Eugene Imhoff - Washington DC, US
Eugene H. Cook - Acton MA, US
Marc S. Weinberg - Needham MA, US
Jonathan J. Bernstein - Medfield MA, US

International Classification:

G01C 19/5726
G01C 19/5733

Abstract:

According to one aspect, embodiments herein provide a gyroscope comprising an axially symmetric structure, and a plurality of transducers, each configured to perform at least one of driving and sensing motion of the axially symmetric structure, wherein the plurality of transducers is configured to drive the axially symmetric structure in at least a first vibratory mode and a second vibratory mode, and wherein the gyroscope is implemented on a hexagonal crystal-based substrate.