DANIEL L MANITAKOS
Engineering in Boxford, MA
License number
Massachusetts 33041
Issued Date
Feb 20, 1987
Expiration Date
Jun 30, 2018
Type
Mechanical Engineer
Address
Address
Boxford, MA 01921
Professional information
Refrigeration Device With Improved Dc Motor
US Patent:
7377035, May 27, 2008
Filed:
Apr 23, 2004
Appl. No.:
10/830630
Inventors:
Uri Bin-Nun - Chelmsford MA, US
Daniel L. Manitakos - Boxford MA, US
Daniel L. Manitakos - Boxford MA, US
Assignee:
Fursystems Inc. - North Billerica MA
International Classification:
B23P 11/00, B23P 15/10
US Classification:
29888048, 92223, 417415
Abstract:
A miniature cooling device includes numerous improvements capable of increasing the reliability and useful lifetime of the device, as well as improving electrical power to cooling power conversion efficiency. The improvements include a unitary DC motor shaft design that incorporates a unitary mass flywheel into the shaft element and provides a solid shaft cross-section for increasing magnetic flux density in the DC motor. Additional improvements include a bend resistant flexible vane in the DC motor to compression piston drive coupler, reduced dead space volume within the compression cylinder, improved heat dissipation by a cylinder head cover and an athermalized compressor design that provides uniformly efficient operation over a wide range of operating temperatures. Further improvements include fabrication and coating improvements that increase the life of compression piston and compression cylinder wear surfaces.
Low Cost High Performance Laminate Matrix
US Patent:
2004023, Nov 25, 2004
Filed:
May 23, 2003
Appl. No.:
10/444194
Inventors:
Uri Bin-Nun - Keene NH, US
Daniel Manitakos - Boxford MA, US
Daniel Manitakos - Boxford MA, US
International Classification:
F23L015/02, F28D017/00, F25B009/00
US Classification:
062/006000, 165/004000
Abstract:
A porous solid substrate suitable for forming heat exchange elements and method for fabricating the substrate are provided. The porous solid substrate is usable in a regenerator or heat exchanger for exchanging thermal energy with a fluid flowing through elements formed from the substrate. Elements formed from the substrate are especially suitable for use in a regenerator matrix used in deep refrigeration cryocoolers based on the Stirling refrigeration cycle. The porous solid element substrate is formed from a plurality of thin screen sheets of interwoven stands of fine wire with each sheet having a thickness of substantially three times the diameter of the wire stands. Sheets are arraigned one above another with surfaces of adjacent sheets in mechanical contact. The sheets sintered in a high temperature high-pressure environment to form a composite element having sintered contact points between adjacent sheets. The composite elements are more easily handled, less susceptible to damage during manufacturing and reduce the manufacturing cost of the heat exchanger.
Refrigeration Device With Improved Dc Motor
US Patent:
7942651, May 17, 2011
Filed:
Mar 27, 2008
Appl. No.:
12/079488
Inventors:
Uri Bin-Nun - Chelmsford MA, US
Daniel L. Manitakos - Boxford MA, US
Daniel L. Manitakos - Boxford MA, US
Assignee:
FLIR Systems, Inc. - Wilsonville OR
International Classification:
F04B 17/03, H02K 7/02, H02K 5/04
US Classification:
417415, 310 74, 310 89, 310153, 310216066
Abstract:
A miniature cooling device includes numerous improvements capable of increasing the reliability and useful lifetime of the device, as well as improving electrical power to cooling power conversion efficiency. The improvements include a DC motor shaft design that incorporates a flywheel mass with a solid shaft cross-section for increasing shaft stiffness and magnetic flux density in the DC motor. Additional improvements include a bend resistant flexible vane in the DC motor to compression piston drive coupler, and a sealed cover set configured to be removable to make a motor repair and then replaced.