Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Patent
1991-01-22
1992-11-10
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Magnet structure or material
294191, H01F 500
Patent
active
051627698
ABSTRACT:
An electromagnetic coil configuration used for swaging small tubing. The coil consists of a coaxial arrangement of an inner helical coil and an outer coil shaped as a hollow cylinder with one end open and the other end closed and connected by direct electrical contact to one end of the inner coil.
REFERENCES:
patent: 3258573 (1966-06-01), Morin et al.
patent: 3599461 (1971-08-01), Astl
patent: 4061007 (1977-12-01), Hansen
patent: 4531393 (1985-07-01), Weir
patent: 4619127 (1986-10-01), Sano et al.
patent: 4947667 (1990-08-01), Gunkel et al.
Dolan Larry E.
Reinkens Kirk A.
Donahue B. A.
Gardner Conrad O.
Korka Trinidad
Picard Leo P.
The Boeing Company
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