Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Work or object holding type
Patent
1998-01-13
1999-11-16
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Work or object holding type
29606, H01F 720
Patent
active
059865300
ABSTRACT:
An improved method for manufacturing a solenoid. The method includes the step of providing a single piece ferromagnetic housing. The method also includes the step of forming a groove around the perimeter of the housing. The method further includes the step of filling the groove with a non-ferromagnetic material such that the non-ferromagnetic material forms an annular ferromagnetic piece that spans the entire groove in the housing. Finally, the method includes the step of removing an inside portion of the housing such that two separate ferromagnetic pieces are formed joined by the non-ferromagnetic piece.
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Jones Brett A.
Kimberley Gregory J.
Moser Paul D.
Nippert Andrew H.
Orr Michael J.
Caterpillar Inc.
Donovan Lincoln
Kercher Kevin M.
Pence O. Gordon
Schmaltz David G.
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