Research/Patents/US 4829276
US 4829276Tier 3 — General Defense

OPTIMAL PERIODIC PERMANENT MAGNET STRUCTURE FOR ELECTRON BEAM FOCUSING TUBES

Assignee

US Government

Filed as: UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE SECRETARY OF THE ARMY

Filed

Mar 30, 1987

Granted

May 9, 1989

Location

EATONTOWN NJ US

Abstract

In the preferred embodiment a plurality of toroidally shaped magnets of slar size and configuraton are placed in a stack side-by-side in coaxial alignment. Alternate magnets in the stack are magnetized so that the magnetic dipole moment of each is oriented in the radial direction. An axial magnetized toroidal magnet is disposed between each pair of adjacent radially magnetized magnets. The magnetic orientation of the succesive toroidal magnets of the stack rotates continually in one direction in increments of 90° or π/2 radians from the magnet at one end of the stack to that at the other end.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jul 23, 1987

Rescinded

Dec 8, 1988

Duration

1 year, 4 months

Inventor

  • 1HERBERT A. LEUPOLD

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records