Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – For magnetizing or demagnetizing
Reexamination Certificate
2007-05-30
2010-06-29
Donovan, Lincoln (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
For magnetizing or demagnetizing
C335S217000, C062S003100
Reexamination Certificate
active
07746203
ABSTRACT:
One embodiment disclosed herein is an apparatus for performing a thermodynamic cycle comprising: a sample that exhibits temporary magnetic remanence; and a magnetisation apparatus for magnetising the sample, wherein the magnetisation apparatus is operable, during a first part of the thermodynamic cycle, to produce a cyclically-varying magnetising field comprising a wavetrain of a single or plurality of consecutive cycles, and to remove the magnetising field from the sample during a second part of the thermodynamic cycle, wherein demagnetisation of the sample during the second part of the thermodynamic cycle causes the generation of an independent magnetic flux.
REFERENCES:
patent: 2510800 (1950-06-01), Chilowsky
patent: 3073974 (1963-01-01), Hob
patent: 4064409 (1977-12-01), Redman
patent: 4197492 (1980-04-01), Sato et al.
patent: 4246531 (1981-01-01), Jordan
patent: 4392356 (1983-07-01), Brown
patent: 5105096 (1992-04-01), Waldschmidt et al.
patent: 5457595 (1995-10-01), Baldwin
patent: 5714829 (1998-02-01), Guruprasad
patent: 6320488 (2001-11-01), Leupold
patent: 6725668 (2004-04-01), Cornwall
patent: 00/64038 (2000-10-01), None
Aharoni,Introduction to the Theory of Ferromagnetism, pp. 1-5, 12-19, 92-101 (1996).
Feynman,The Feynman Lectures on Physics, pp. 34-1-34-12, 35-1-35-12, 36-1-36-15, 37-1-37-13, 38-1, 39-1-39-12, 40-1-40-10, 41-1-41-10, 42-1-42-10, 43-1-43-10, 44-1-44-13, 45-1-45-9, 46-1-46-8 (1989).
Rosensweig,Ferrohydrodynamics, pp. 60-63, 162-175(1985).
Solomon, “Design of a Thermomagnetic Generator,”Energy Convers. Mgmt., vol. 31, No. 2, pp. 157-173 (1991).
Donovan Lincoln
Klarquist & Sparkman, LLP
Rojas Bernard
LandOfFree
Thermodynamic cycles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermodynamic cycles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermodynamic cycles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4171231