Tiny vacuum pump

On Mon, 19 Jan 2004 17:45:27 -0500, Mike Patterson
wrote:

On Sat, 17 Jan 2004 19:03:40 GMT, Tom Pappano
wrote:

Jim Weir wrote:
Does anybody have an idea on how to make a tiny little vacuum pump on the order
of an aquarium pump or so that will draw just a few inches of water? Preferably
110, but I can rig up a 12 volt supply if necessary.


Just get a little "mityVac" hand pump used for testing vac advance etc
on cars.
Or if you really need it mechanized, make an adapter for your vacuum
cleaner with an adjustable bleed

The reason I say this is that I'm getting ready to pack a fairly large number of
bags with used but serviceable engine parts (valves, pistons, etc.) and I'd like
to put each part in a "baggie" (sandwich bag or equivalent) along with a little
preservative oil, and then suck the baggie down with a football needle stuck
into the top closing mechanism just before sealing.

Thoughts?

Jim
Jim Weir (A&P/IA, CFI, & other good alphabet soup)
VP Eng RST Pres. Cyberchapter EAA Tech. Counselor
http://www.rst-engr.com


Those aquarium air pumps pull air from around the case.

How about placing one inside a cheapo tupperware-type container with a
"suck" port mounted on the container, you'd also need to run a "blow"
port from the pump's normal output through the container wall.

HTH


Mike Patterson
Please remove the spamtrap to email me.

Try using warm oil, not hot enough to melt through, roll the air out of
the baggie, seal it and as the oil cools, maybe it will pull it own
vaccuum...

Jimmy:
Use an old compressor from a freg. I have a high dollar Freon pump but
use the old G.M. compressor more.
Jim
"Jim Weir" wrote in message
...
Does anybody have an idea on how to make a tiny little vacuum pump on the
order
of an aquarium pump or so that will draw just a few inches of water?
Preferably
110, but I can rig up a 12 volt supply if necessary.

The reason I say this is that I'm getting ready to pack a fairly large
number of
bags with used but serviceable engine parts (valves, pistons, etc.) and
I'd like
to put each part in a "baggie" (sandwich bag or equivalent) along with a
little
preservative oil, and then suck the baggie down with a football needle
stuck
into the top closing mechanism just before sealing.

Thoughts?

Jim
Jim Weir (A&P/IA, CFI, & other good alphabet soup)
VP Eng RST Pres. Cyberchapter EAA Tech. Counselor
http://www.rst-engr.com

In rec.aviation.owning Jim Weir wrote:
: Does anybody have an idea on how to make a tiny little vacuum pump on the order
: of an aquarium pump or so that will draw just a few inches of water? Preferably
: 110, but I can rig up a 12 volt supply if necessary.

I've actually got one of these at home. I found it from a pile of
surplus equipment. It doesn't pull much vacuum, but it basically is an
aquarium pump. I'll try to find a model number on it and report back.

-Cory

************************************************** ***********************
* The prime directive of Linux: * * - learn what you don't know, * * -
teach what you do. * * (Just my 20 USm$) *
************************************************** ***********************

Jim, Get a grip on yourself--or better ,one of those little , or medium size rubber
bulb blower thingies, (they have a one way check valve in each end) or even a plastic
gas-syphon hose bulb---THINK OF THE ELECTRICITY YOU WILL SAVE, ---jERRY

wrote:

In rec.aviation.owning Jim Weir wrote:
: Does anybody have an idea on how to make a tiny little vacuum pump on the order
: of an aquarium pump or so that will draw just a few inches of water? Preferably
: 110, but I can rig up a 12 volt supply if necessary.

I've actually got one of these at home. I found it from a pile of
surplus equipment. It doesn't pull much vacuum, but it basically is an
aquarium pump. I'll try to find a model number on it and report back.

-Cory

************************************************** ***********************
* The prime directive of Linux: * * - learn what you don't know, * * -
teach what you do. * * (Just my 20 USm$) *
************************************************** ***********************

Take one of these apart:

http://www.ballsonline.com/details.a...t=136&path=136

then reverse the little flapper valve to make it suck instead of blow...

--
Dan D.



..
"Jim Weir" wrote in message ...
Does anybody have an idea on how to make a tiny little vacuum pump on the order
of an aquarium pump or so that will draw just a few inches of water? Preferably
110, but I can rig up a 12 volt supply if necessary.

The reason I say this is that I'm getting ready to pack a fairly large number of
bags with used but serviceable engine parts (valves, pistons, etc.) and I'd like
to put each part in a "baggie" (sandwich bag or equivalent) along with a little
preservative oil, and then suck the baggie down with a football needle stuck
into the top closing mechanism just before sealing.

Thoughts?

Jim
Jim Weir (A&P/IA, CFI, & other good alphabet soup)
VP Eng RST Pres. Cyberchapter EAA Tech. Counselor
http://www.rst-engr.com

On Fri, 16 Jan 2004 08:41:07 -0800, Jim Weir wrote:

Does anybody have an idea on how to make a tiny little vacuum pump on the order
of an aquarium pump or so that will draw just a few inches of water? Preferably
110, but I can rig up a 12 volt supply if necessary.

Thoughts?

When I was in college, the chem labs used a venturi on water faucets
to create a vacuum for filtration. I've tried Google to show where to
get them, and failed.

Just a little attachment with a side barbed fitting ... good vacuum
levels, CHEAP, and appropriate for one who utilizes Bernoulli in other
ways ...

now where do I get it?

I built a few of those for a hot tub several years ago.
Being a frugal and saving kind of guy, I've still got most
of them tucked away. Simple construction really and capable
of several inches of mercury.

John

On Mon, 19 Jan 2004 21:36:37 -0500, GeorgeB
wrote:

On Fri, 16 Jan 2004 08:41:07 -0800, Jim Weir wrote:

Does anybody have an idea on how to make a tiny little vacuum pump on the order
of an aquarium pump or so that will draw just a few inches of water? Preferably
110, but I can rig up a 12 volt supply if necessary.

Thoughts?

When I was in college, the chem labs used a venturi on water faucets
to create a vacuum for filtration. I've tried Google to show where to
get them, and failed.

Just a little attachment with a side barbed fitting ... good vacuum
levels, CHEAP, and appropriate for one who utilizes Bernoulli in other
ways ...

now where do I get it?

"GeorgeB" wrote in message ...

When I was in college, the chem labs used a venturi on water faucets
to create a vacuum for filtration. I've tried Google to show where to
get them, and failed.

They sell them at WAL*MART and other pet stores for draining aquariums.
Also had a similar device to drain the waterbed back when those things were
fashionable.

Check Fisher Scientific under "aspirator".

"GeorgeB" wrote in message
...
On Fri, 16 Jan 2004 08:41:07 -0800, Jim Weir wrote:

Does anybody have an idea on how to make a tiny little vacuum pump on the
order
of an aquarium pump or so that will draw just a few inches of water?
Preferably
110, but I can rig up a 12 volt supply if necessary.

Thoughts?

When I was in college, the chem labs used a venturi on water faucets
to create a vacuum for filtration. I've tried Google to show where to
get them, and failed.

Just a little attachment with a side barbed fitting ... good vacuum
levels, CHEAP, and appropriate for one who utilizes Bernoulli in other
ways ...

now where do I get it?