Korda K Jin

46059113, Aug 12, 1986

Oct 24, 1984

6/664193

Korda K. Jin - Brea CA

The United States of America as represented by the Secretary of the Air
Force - Washington DC

H03H 938

333144

A cascade combination of magnetostatic delay line elements operating in different signal propagation modes for the purpose of achieving dispersion cancellation; magnetic bias control of the attained frequency-dependent delay and a magnetic bias field establishing apparatus for providing the tubular, laminar magnetic flux needed for backward volume wave operation of a magnetostatic delay element are also included.

47206926, Jan 19, 1988

Aug 11, 1986

6/895623

Korda K. Jin - Brea CA

The United States of America as represented by the Secretary of the Air
Force - Washington DC

H03H 938

333144

A laminar magnetic flux generating apparatus for use with a signal delay line or other apparatus requiring a long, narrow, uniform field. Magnetic flux orthogonal to the primary flux is generated by an array of spaced apart magnets located along the length of the long, narrow, uniform field; combined orthogonal and primary fluxes provide the desired long, narrow, uniform field flux within a magnetically conductive enclosure. Vector summation and fluid analogies for the achieved flux are disclosed.

49049712, Feb 27, 1990

Feb 8, 1988

7/153740

Korda K. Jin - Brea CA

Rockwell International Corporation - El Segundo CA

H01F 722
H01B 1200

335216

A superconducting electromagnet comprising an outer core having an aperture; an inner core having a periphery characterized for complementary insertion into the outer core aperture leaving a uniform gap therebetween and a frame means for coupling the outer and inner cores into a fixed position relation. A magnetizing means, such as a coil on the inner core develops an initial flux field. The flux field passes through the inner core, the first gap, the outer core, across the second gap to the inner core in response to excitation of the magnetizing means. The outer and inner cores are coated on all surfaces except opposing inner and outer core gap surfaces with superconductive material. The superconductive material is applied to the outer and inner cores at regions selected to pass induced magnetizing current. The induced magnetizing current circulating via closed current paths within the superconductive material to support the flux free of energy loss on termination of excitation of the magnetizing means.