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:
Apr. 07, 2015
Filed:
Jun. 13, 2012
Basant K. Parida, Bellingham, MA (US);
Abdullatif K. Zaouk, Jamaica Plain, MA (US);
Jason Ross, Lexington, MA (US);
Grant Stephen Nash, Northborough, MA (US);
Basant K. Parida, Bellingham, MA (US);
Abdullatif K. Zaouk, Jamaica Plain, MA (US);
Jason Ross, Lexington, MA (US);
Grant Stephen Nash, Northborough, MA (US);
Foster-Miller, Inc., Waltham, MA (US);
Abstract
A locomotive warning system includes an acoustical warning subsystem configured to emit variably directed sound. A controller subsystem is responsive to an initiation command and is configured to trigger the acoustical warning subsystem to begin a sounding sequence when the initiation command is received at a first directivity angle and to continue the sound blast sequence at increasing directivity angles for a pre-establish time and/or distance traveled.