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:
Aug. 06, 2002
Filed:
Jan. 23, 2001
Applicant:
Inventors:
Mark Alan Hager, Rochester, NY (US);
Michael F. Towey, Jr., Pittsford, NY (US);
Assignee:
Alstom Signaling, Inc., Rochester, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01B 7/00 ;
U.S. Cl.
CPC ...
E01B 7/00 ;
Abstract
A contactless detection system for detecting the movements of the switch points of a railroad switch and stock rail of a railroad switch/point having a transformer for detecting or sensing the position of the switch points, the transformer having a core linked to the switch points, and further having a primary coil and a pair of secondary coils wound around the core; and an electronic interface means for receiving signals from the secondary coils responsive to, and corresponding with, the positioning of the switch points.