Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Patent
1996-11-26
1997-09-16
Spyrou, Cassandra C.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Magnet structure or material
335299, 336177, 336223, 210222, 209219, H01F 502, B03C 100
Patent
active
056685181
ABSTRACT:
A wire wound drum using a magnetic element having a non-magnetic shell and a matrix material bonded to the shell and made up of a non-magnetic wire and a magnetic wire wound on the shell in bobbin fashion single layer alternate magnetic and non-magnetic wires having the outer diameter of the wire machined down to the center line of the wire wrap to produce a flat surface.
REFERENCES:
patent: 781077 (1905-01-01), Langguth
patent: 3024910 (1962-03-01), Palasvirta et al.
patent: 3233587 (1966-02-01), Morton
Barrera Raymond M.
Eriez Manufacturing Company
Spyrou Cassandra C.
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