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Donald O'Brien Phones & Addresses

  • Hudson, MA
  • Marlborough, MA
  • Waltham, MA

Professional Records

Lawyers & Attorneys

Donald O'Brien Photo 1

Donald O'Brien - Lawyer

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Office:
Hinshaw & Culbertson LLP
Specialties:
Family
Architects & Engineers Liability
Commercial Litigation
Insurance Agents & Brokers Liability
Product Liability
Professional Liability
ISLN:
904752531
Admitted:
1977
University:
Loyola University of Chicago, B.A., 1969
Law School:
The John Marshall Law School, J.D.; The John Marshall Law School, J.D.
Donald O'Brien Photo 2

Donald O'Brien - Lawyer

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Specialties:
Admiralty
Health Care Law
Civil Litigation
ISLN:
904752470
Admitted:
1951
University:
Catholic University of America, B.A., 1948
Law School:
Georgetown University, J.D., 1951

Publications

Us Patents

Pressure Compensated Marine Electrical Cable Apparatus

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US Patent:
40036200, Jan 18, 1977
Filed:
Oct 12, 1970
Appl. No.:
5/079781
Inventors:
Donald G. O'Brien - Wayland MA
Edward R. Walker - Natick MA
Assignee:
D. G. O'Brien, Inc. - Framingham MA
International Classification:
H01R 1352
US Classification:
339 29R
Abstract:
Marine electrical cable apparatus has a flexible cable jacket loosely containing cable conductors and filled with a relatively incompressible fluid such as oil. The jacket flexes with changes in the environmental pressure to transmit that pressure to the inner fluid and thereby maintain minimal pressure differential across the jacket walls. Terminations at each end of the cable seal the jacket interior from the environment and feed the cable conductors from within the jacket out for connection with further electrical equipment.

Actuators For Simulating Muscle Activity In Robotics

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US Patent:
56972857, Dec 16, 1997
Filed:
Dec 21, 1995
Appl. No.:
8/576643
Inventors:
Bruce Nappi - Newton MA
Donald Francis O'Brien - Waltham MA
International Classification:
F15B 1100
F15B 1900
US Classification:
91519
Abstract:
An apparatus generates power at micro-scale dimensions that is sufficient to simulate the muscle activity required by the joints of robotic fingers. The apparatus includes a bellows device for generating a motion stimulus in response to pressure changes within the bellows. A configuration of programmable micromachined valves is used to regulate the flow of pressurized fluid within the bellows. A microprocessor is responsive to motion commands for controlling the operation of the apparatus. The apparatus is configured as an integrated device that is coupled to the articulations of a robotic hand via suitable attachment mechanisms.
Donald L O'Brien from Hudson, MA, age ~55 Get Report