Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Work or object holding type
Patent
1985-04-17
1986-11-11
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Work or object holding type
335300, H01F 720
Patent
active
046225323
ABSTRACT:
The invention is intended for incorporation into an enclosure confining fluid about an electromagnet of the type having a core, at least one coil disposed about the core and a current source coupled to the coil to establish a magnetic field. According to the invention, at least a portion of the peripheral wall of the enclosure surrounding the core axis resides in non-parallel relationship with the axis of the core. As a result, a part of the peripheral wall portion is in closer proximity to the wire coil than the remainder of the wall portion. As a result, the heat readily conducts through the wall portion and is dissipated efficiently. The surface exposed to the atmosphere with the above construction has a greater area than would a planar wall parallel to the core axis so that heat dissipation is enhanced.
REFERENCES:
patent: 2095499 (1937-10-01), Hodgson et al.
patent: 3763453 (1973-10-01), Schurr
patent: 4045756 (1977-08-01), Mueller
Harris George
Magnetics International Inc.
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