Output choke for D.C. welder and method of using same
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United States of America Patent
Stats
-
Aug 16, 2005
Grant Date -
Aug 16, 2001
app pub date -
Apr 25, 2001
filing date -
Nov 2, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An output choke for a D.C. arc welder comprising a high permeability core with an inductance controlling air gap defined by first and second pole pieces terminating in first and second surfaces facing each other and each having two spaced edges with an intermediate area, said surfaces converging from said intermediate area toward each of said edges to generate a specific cross sectional shape for said gap wherein said choke is large enough to carry at least about 100 amperes of weld current.
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