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:
Sep. 11, 2012
Filed:
Sep. 02, 2009
Robert L. Lafountain, Charlestown, IN (US);
Xueguang BI, Beijing, CN;
Michael Simmons, Louisville, KY (US);
Robert L. LaFountain, Charlestown, IN (US);
Xueguang Bi, Beijing, CN;
Michael Simmons, Louisville, KY (US);
General Equipment and Manufacturing Company, Inc., Louisville, KY (US);
Abstract
A magnetic target is provided for use with a magnetic proximity switch. The magnetic target includes a cylindrical body tube having an open end that partially defines a bore. A stationary magnet is located within the bore opposite the open end, and a movable magnet is disposed within the bore between the stationary magnet and the open end. An adjusting member is received into the bore, and a contact surface of the adjusting member engages the movable magnet. When the adjusting member is axially displaced, the contact surface causes a corresponding displacement of the movable magnet relative to the stationary magnet, eventually causing the magnetic flux field of each magnet to expand in a radial direction away from the longitudinal axis of each magnet. The stationary magnet and the movable magnet may be either axially-magnetized samarium-cobalt magnets or axially-magnetized neodymium magnets.