Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Reexamination Certificate
2005-09-06
2005-09-06
Crepeau, Jonathan (Department: 1746)
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
C429S010000, C429S006000, C422S198000, C165S172000, C165S177000, C165S181000
Reexamination Certificate
active
06939632
ABSTRACT:
A micromachined device for efficient thermal processing at least one fluid stream includes at least one fluid conducting tube having at least a region with wall thickness of less than 50 μm. The device optionally includes one or more thermally conductive structures in thermal communication with first and second thermally insulating portions of the fluid conducting tube. The device also may include a thermally conductive region, and at least a portion of the fluid conducting tube is disposed within the region. A plurality of structures may be provided projecting from a wall of the fluid conducting tube into an inner volume of the tube. The structures enhance thermal conduction between a fluid within the tube and a wall of the tube. A method for fabricating, from a substrate, a micromachined device for processing a fluid stream allows the selective removal of portions of the substrate to provide desired structures integrated within the device. As an example, the micromachined device may be adapted to efficiently react fluid reactants to produce fuel for a fuel cell associated with the device, resulting in a system capable of conversion of chemical to electrical energy.
REFERENCES:
patent: 4386505 (1983-06-01), Little
patent: 4516632 (1985-05-01), Swift et al.
patent: 4614119 (1986-09-01), Zavracky et al.
patent: 4908112 (1990-03-01), Pace
patent: 5021663 (1991-06-01), Hornbeck
patent: 5094906 (1992-03-01), Witzke et al.
patent: 5209906 (1993-05-01), Watkins et al.
patent: 5385709 (1995-01-01), Wise et al.
patent: 5428961 (1995-07-01), Sakakibara et al.
patent: 5458191 (1995-10-01), Chiang et al.
patent: 5534328 (1996-07-01), Ashmead et al.
patent: 5589136 (1996-12-01), Northrup et al.
patent: 5595712 (1997-01-01), Harbster et al.
patent: 5639423 (1997-06-01), Northrup et al.
patent: 5646039 (1997-07-01), Northrup et al.
patent: 5674742 (1997-10-01), Northrup et al.
patent: 5789753 (1998-08-01), Gooch et al.
patent: 5811062 (1998-09-01), Wegeng et al.
patent: 5843385 (1998-12-01), Dugan
patent: 5863502 (1999-01-01), Southgate et al.
patent: 5882496 (1999-03-01), Northrup et al.
patent: 5932315 (1999-08-01), Lum et al.
patent: 5941079 (1999-08-01), Bowman et al.
patent: 5961930 (1999-10-01), Chatterjee et al.
patent: 5961932 (1999-10-01), Ghosh et al.
patent: 5965092 (1999-10-01), Chatterjee et al.
patent: 5965237 (1999-10-01), Bruin et al.
patent: 6062210 (2000-05-01), Welles
patent: 6170568 (2001-01-01), Valenzuala
patent: 6180536 (2001-01-01), Chong et al.
patent: 6192596 (2001-02-01), Bennett et al.
patent: 6193501 (2001-02-01), Masel et al.
patent: 6194066 (2001-02-01), Hoffman
patent: 6200536 (2001-03-01), Tonkovich et al.
patent: 6210986 (2001-04-01), Arnold et al.
patent: 6250379 (2001-06-01), Geissler et al.
patent: 6477901 (2002-11-01), Tadigadapa et al.
patent: WO 99/44736 (1999-09-01), None
Lebouitz, K.S., MEMS Microshells for Microneedles, Microscale Fluid Visualization, and Vacuum Packaging of Microdevices (A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Engineering—Mechanical Engineering), Chapter 3, pp. 40-55, Fall 1998, University of California, Berkeley (USA).
Wegeng et al., Developing New Miniature Energy Systems, Mechanical Engineering, vol. 116, No. 9, pp 82-85, Sep. 1994.
Mehra et al., Development of a Hydrogen Combustor for a Microfabricated Gas Turbine Engine, presented at Solid-State Sensor and Actuator Workshop, Hilton Head Island, South Carolina, Jun. 8-11, 1998.
Arana Leonel R.
Franz Aleksander J.
Jensen Klavs F.
Schaevitz Samuel B.
Schmidt Martin A.
Crepeau Jonathan
Kirkpatrick & Lockhart Nicholson & Graham LLP
Massachusetts Institute of Technology
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