The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2003
Filed:
Mar. 30, 2001
Stephen C. Gottschalk, Woodinville, WA (US);
STI Optronics, Inc., Bellevue, WA (US);
Abstract
A multipole beamline magnet ( ) includes a plurality of stationary poles ( ) formed of ferromagnetic material and one or more permanent magnets ( ) that are disposed between the plurality of stationary poles. Each of the permanent magnets supplies magnetomotive force to two adjacent stationary poles, so that the poles produce a magnetic field in a central space ( ) defined by the poles. A mechanical axis ( ) of the beamline magnet is defined to extend through the central space, perpendicularly to the plane defined by the poles and the magnets. The beamline magnet further includes a linear drive ( ) that is adapted to move the permanent magnet(s) perpendicularly to the mechanical axis. Thus constructed, the beamline magnet produces a high-quality field using its stationary poles, and further allows for selective adjustment of the magnetic field strength and the magnetic centerline by collectively or selectively moving the permanent magnets.