Foot Pedal Type Bilge Pump

[jongleur]

I may have asked this before. But on another
thread they were talking about pedaling power.

I saw a pedal powered bilge pump demonstrated
at a boat show at the Anaheim Convention Center
about 30 years ago.

It was stainless steel and had two vanes inside
intermeshed. That was about it. They had
it pump from one 55 gallon drum to another.
It could really move the water. Foot powered.

Does anybody know where that product ever
went?