When was the American entrepreneur and engineer died based on who's patent modern trains rely upon a fail-safe air brake system?
Railway air brake A railway air brake is a railway brake power braking system with compressed air as the operating medium. Modern trains rely upon a fail-safe air brake system that is based upon a design patented by George Westinghouse on March 5, 1868. The Westinghouse Air Brake Company (WABCO) was subsequently organized to manufacture and sell Westinghouse's invention. In various forms, it has been nearly universally adopted.
Jack Zink John Smith "Jack" Zink (October 28, 1928 – February 5, 2005) was an American engineer who received 35 patents for his inventions in the field of combustion, and was also known for his achievements and contributions in business, auto racing and charitable enterprises.