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:
Oct. 26, 2004
Filed:
Nov. 27, 2002
Norbert J. Pelc, Los Altos, CA (US);
Zhifei Wen, Stanford, CA (US);
The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);
Abstract
An x-ray tube having sensors, magnets, and/or active compensation means operatively coupled thereto or integrated therein for aligning its electron beam with an external magnetic field. Permanent magnets positioned behind the anode and cathode respectively or electromagnets are used to produce a strong, properly aligned internal magnetic field. The x-ray tube is thus less sensitive to other magnetic fields that are not parallel to the anode-cathode axis. The x-ray tube can be mounted in a manner that it can pivot, allowing it to move and align itself. The x-ray tube can also be mounted such that a torque can be sensed. This sensed mechanical force is then used as an input to determine current applied to electromagnetic coils arranged to oppose a transverse magnetic field.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile