Donald Bateman's invention credited with keeping airline passengers safe

Charles Donald Bateman counts playing hockey with Gordie Howe at the age of 13 as his claim to fame.
In 2005, he told the StarPhoenix he’d roll up copies of the paper for pads and play the 17-year-old Howe. Bateman went on to become an inventor and it’s U.S. patent No. 3,922,637 that is his real claim to fame.
Born in 1932, Bateman, better known as Don, was a student at Princess Alexandra School where his grade school teacher fostered his interest in problem solving. T