Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Reexamination Certificate
2005-10-11
2005-10-11
Donovan, Lincoln (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
C072S056000, C072S705000
Reexamination Certificate
active
06954127
ABSTRACT:
An electromagnet assembly for supplying a region of concentrated electromagnetic flux is provided. The assembly includes a flat strip of an electrically conductive metal. The strip has a first and a second opposite planar surfaces at least one of which is covered by a dielectric material. The strip has first and second end portions. The strip is wound in a coil including at least one first loop and one second loop and disposing the second opposite planar surface in the first loop substantially adjacent the first opposite planar surface in the second loop. The coil is disposed about an axis of symmetry configured to concentrate electromagnetic flux at a midpoint on the axis of symmetry. First and second electrical terminals are connected at the first and second end portions, respectively.
REFERENCES:
patent: 4061007 (1977-12-01), Hansen et al.
patent: 4127933 (1978-12-01), Hansen et al.
Berg Frederic P.
Smith David B.
Black Lowe & Graham PLLC
Donovan Lincoln
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