All about Bill Bennett is invited.
William E. Bennett
William Edward Bennett
"Uncle Bill" to some.
Half of the Two Bills ... to others.
Aussie moved to USA.
Ornamental design patent that he never enforced; allowed action against art sculptures, etc.
Appearance of line. NOT A MECHANICAL PATENT. https://www.google.com/patents/USD224248
U.S. Pat. No. D-224,248 issued on Jul. 11, 1972 to William E. Bennett, titled “Passenger Carrying Tow Kite”
The ornamental appearance were very close to the ornamental appearance of Dickenson's Rogallo tow kite,
and thus might have been invalid. The implied aircraft mechanically was extant in 1960-1 by John Worth
and in James Hobson's Rogallo hang glider, etc. It is easy to tweak an artistic line to get ornamental appearance patents.
It is far more challenging to get a mechanical valid patent. Since the implied mechanical aircraft was in public domain by at least 1960,
then neither Dickenson nor Bennett could patent the basic machine exhibited at least by John Worth in the NASA circles.
Start:
His 1972 article reported what he considered was a niche world record flight.
He saw his craft as a "Rogallo wing glider"
... clip from EAA Sport Aviation in 1972
New York Times:
Bill Bennett, 73, Is Dead; Championed Hang Gliding
By DOUGLAS MARTIN
Published: November 17, 2004