John C Barber

US Patent:

56112300, Mar 18, 1997

Filed:

Jan 3, 1995

Appl. No.:

8/368301

Inventors:

Bhanumathi Chelluri - Dublin OH
John P. Barber - Kettering OH

Assignee:

IAP Research, Inc. - Dayton OH

International Classification:

B21D 2602
B23P 1704

US Classification:

72 56

Abstract:

Structure and a method for producing very dense bodies of material from particulate materials. A particulate material is placed within an electrically conductive container. A solenoid or coil encompasses the electrically conductive container, and a large magnitude of electrical current is caused to flow through the solenoid or coil. As the electrical current flows through the solenoid or coil, large magnitudes of magnetic pressures are created upon the electrically conductive container, and the electrically conductive container is compressed, and the transverse dimension thereof is reduced. Thus, the particulate material within the electrically conductive container is very firmly compacted, and a rigid body of material is provided. Any one of numerous types of particulate material may be employed. For example, a body of electrical superconductive material of any desired size and shape can be produced by this method by the use of superconducting particulate material.

US Patent:

54055741, Apr 11, 1995

Filed:

Feb 10, 1992

Appl. No.:

7/834148

Inventors:

Bhanumathi Chelluri - Dublin OH
John P. Barber - Kettering OH

Assignee:

IAP Research, Inc. - Dayton OH

International Classification:

B22F 102

US Classification:

419 47

Abstract:

Structure and a method for producing very dense bodies of material from powderous materials. A powderous material is placed within an electrically conductive container. A solenoid encompasses the electrically conductive container, and a large magnitude of electrical current is caused to flow through the solenoid or coil. As the electrical current flows through the solenoid or coil, large magnitudes of pressures are created upon the electrically conductive container, and the electrically conductive container is compressed, and the transverse dimension thereof is reduced. Thus, the powderous material within the electrically conductive container is very firmly compacted. A body of superconductive material of any desired size and shape can be produced by this method by the use of superconducting powderous material.

US Patent:

56897979, Nov 18, 1997

Filed:

Apr 6, 1995

Appl. No.:

8/418593

Inventors:

Bhanumathi Chelluri - Dublin OH
John P. Barber - Kettering OH
Duane Charles Newman - London OH

Assignee:

IAP Research, Inc. - Dayton OH

International Classification:

B22F 102
C21D 104

US Classification:

419 38

Abstract:

Structure and a method for producing very dense bodies from particulate materials. An electrically conductive drive member is positioned adjacent the particulate material. A significant magnitude of electrical current is caused to flow through the electrically conductive drive member. A magnetic field is established and large magnitudes of magnetic pressure are created, and pressure directly from or indirectly from the magnetic pressure is applied upon the particulate material, and the particulate material is compressed and compacted. In one embodiment of the invention electrical current creates a magnetic field which is applied to an electrically conductive pressure member which moves and applies compaction pressure upon the particulate material. Electromagnetic pressure in accordance with this invention may be applied to a compacted body of particulate material, and the compressibility and density of the body of particulate material is increased. Any one of numerous types of particulate material may be involved with regard to this invention.

US Patent:

56111398, Mar 18, 1997

Filed:

Apr 6, 1995

Appl. No.:

8/417919

Inventors:

Bhanumathi Chelluri - Dublin OH
John P. Barber - Kettering OH
Duane C. Newman - London OH

Assignee:

IAP Research, Inc. - Dayton OH

International Classification:

B23P 1900
C21D 104

US Classification:

29744

Abstract:

Structure and a method for producing very dense bodies from particulate materials. An electrically conductive drive member is positioned adjacent the particulate material. A significant magnitude of electrical current is caused to flow through the electrically conductive drive member. A magnetic field is established and large magnitudes of magnetic pressure are created, and pressure directly from or indirectly from the magnetic pressure is applied upon the particulate material, and the particulate material is compressed and compacted. In one embodiment of the invention electrical current creates a magnetic field which is applied to an electrically conductive pressure member which moves and applies compaction pressure upon the particulate material. Electromagnetic pressure in accordance with this invention may be applied to a compacted body of particulate material, and the compressibility and density of the body of particulate material is increased. Any one of numerous types of particulate material may be involved with regard to this invention.