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:
Jan. 09, 2024
Filed:
Feb. 08, 2021
Applicant:
Harsco Technologies Llc, Fairmont, MN (US);
Inventor:
Peter M Bartek, Ledgewood, NJ (US);
Assignee:
HARSCO TECHNOLOGIES LLC, Fairmont, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61L 23/00 (2006.01); B61L 23/06 (2006.01); H04B 1/69 (2011.01); G08B 5/00 (2006.01); G08B 6/00 (2006.01); G08G 1/005 (2006.01); H04B 1/3827 (2015.01); B61L 1/02 (2006.01); B61L 15/00 (2006.01); B61L 25/02 (2006.01);
U.S. Cl.
CPC ...
B61L 23/06 (2013.01); G08B 5/006 (2013.01); G08B 6/00 (2013.01); G08G 1/005 (2013.01); H04B 1/3827 (2013.01); H04B 1/69 (2013.01); B61L 1/02 (2013.01); B61L 15/0027 (2013.01); B61L 25/026 (2013.01); H04B 2001/6912 (2013.01);
Abstract
A rail warning system using wireless portable transmitters/receivers. The rail warning system uses chirp spread spectrum modulation scheme, and alerts personnel in work zones on or near train tracks as well as optionally, on track equipment and train operators , of approaching trains or on track equipment. Portable wayside devices may also be positioned on the rail web, optionally magnetically, to alert work personnel, allowing for secure placement but also portability to other locations on the same track or adjacent tracks.