Metal deforming – By application of fluent medium – or energy field – By kinetic energy of fluid or field
Patent
1976-12-20
1978-09-26
Gilden, Leon
Metal deforming
By application of fluent medium, or energy field
By kinetic energy of fluid or field
72705, 72DIG30, 361139, 361143, B21D 2614
Patent
active
041160312
ABSTRACT:
A flux concentrator has a pair of primary coils wrapped around a thin walled cylindrical portion of a secondary coil. The secondary coil has a conductive head at an end and the coil is slotted to generate a rapid high intensity axially acting flux at the head in response to a flow of current through the primary coils. A pulling force is generated as a result of a slow rise high amplitude current flow through one of the coils followed by a rapid rise reversed polarity current flow through the second primary coil.
REFERENCES:
patent: 3196649 (1965-07-01), Furth
patent: 3271716 (1966-09-01), Furth
patent: 3703958 (1972-11-01), Kolm
patent: 3743898 (1973-07-01), Staurman
Hansen Karl A.
Hendrickson I. Glen
Case Morris A.
Donahue B. A.
Gilden Leon
The Boeing Company
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