Pinch valve nomenclature

It's mentioned in several patents, but I don't see an accepted technical name:

hey, sorry for intruding on your thread. i don't know. but your question gave me enough info to look up "pinch valve". i saw a "check valve" on a storm drain down by a river near me, i'd never seen one of 'em before, i had to go down there and check it out, an impressive hunk of rubber. it stands about 5 feet tall. clever.

"Duckbill" valve, for the weed wacker gas tank anyway.

MikeB

oh, i just remembered, i saw (tiny) one of them on a weed wacker gas cap. was a vent valve, at that time i thought that was pretty clever too. i wonder if like a parts diagram for a weed wacker gas tank might have a name for it.

The pinch valves we used routinely for slurries, etc. were Red Valves. Used an analog air signal to progressively close. These were invaluable in slurry or sludge service. Also called sphincter valve and you can guess the other names. Here's a link:

I think I would call it a PITA to clean.

Agreed, that was my criticism.

Careful! That is the name of our cat!

Paul

On Sat, 9 Jan 2010 07:44:03 -0800 (PST), the infamous " snipped-for-privacy@coinet.com" scrawled the following:

messagenews:Xns9CFA8E10B3437someconundrum@216.196.97.131...

Named after the bread or the acronym, Paul? I'm guessing the latter, knowing cats as well as I do.

--============================================-- Growing old is mandatory; growing up is optional. ---

Those rubber valves are often used in the food industry as non-return valveson piston pumps for depositors.They are easily cleaned and seldom cause any problem. When they do, you just throw them away and put in another one. We called them "Duck's bill "valves from their shape.

messagenews:Xns9CFA8E10B3437someconundrum@216.196.97.131...

I have a cousin who named one of his cats Damnit. ("Get off the table, Damnit!")

Pete Keillor