Transformers tube type

• US 6,724,288 B1
• Filed: 07/21/1997
• Issued: 04/20/2004
• Est. Priority Date: 07/21/1997
• Status: Expired due to Fees

• Current Assignee: Clarence W Mc Queen
• Original Assignee: Clarence W Mc Queen
• Inventors: Mc Queen, Clarence W
• Primary Examiner(s): Enad, Elvin
• Assistant Examiner(s): Nguyen, Tuyen T.
• Application Number:
  US08/897,484
• Time in Patent Office: 2,465 Days
• Field of Search: 336/182, 336/90, 336/212, 336/220-222, 336/180, 336/183, 336/185, 336/83, 336/145-147, 336/260
• US Class Current: 336/83
• CPC Class Codes: H01F 27/24 Magnetic cores
• CPC Class Codes: H01F 27/2823 Wires H01F27/2866 takes precedence

Abstract

A ferromagnetic tube, with an electric current passing through a conductor coiled on the outside of the tube, will produce a magnetic field on the inside of said tube when the tube is long relative to the diameter and will produce a magnetic field on the outside when the tube is short relative to the diameter. With a ferromagnetic center post, placed axially within said tube and with ferromagnetic end caps, connecting the center post to the tube, a conductor coiled on the center post will produce a magnetic field on the outside of the tube when the tube is long relative to the diameter and on the inside of the tube when the tube is short relative to the diameter. This phenomena has direct applications to charged particle containment, electromagnets, transformers and other inductive devices.

Claims

1. A magnetic field device comprising:

a ferromagnetic tube, with a length 7 or more times the diameter, a ferromagnetic center post positioned axially within said tube, two end caps connecting the center post to said tube, with a conductor wound on said center post will produce a magnetic field outside of said tube when an electric current is introduced into said conductor.

2. A magnetic field device as in claim 1, with the addition of a conductor wound on the outside of said tube will produce a secondary current in the other conductor when an electric current is introduced into the conductor on the outside of said tube or the conductor on the inside of said tube.

3. A magnetic field device as in claim 2 with the addition of a second conductor, wound on the outside of said tube will produce a secondary current in the other conductor when an electric current is introduced in either conductor.