[Mr. Teslonian] built his own hand powered vacuum pump for loading the weapon. This was done with a pair of PVC pipes that fit inside of one another, and a plunger made from wood and leather.

What can you do with a very good vacuum pump? You can build an electron microscope, x-ray tubes, particle accelerators, thin films, and it can keep your coffee warm. Of course getting your hands ...

Hand pumps and foot pumps are manually operated pumps driven by hand or foot via a handle or lever. This manual external force actuates an internal mechanism, which increases pressure for moving ...

This is a manual vacuum ... battery-operated. Electric pumps use batteries to do their work. They can be used by people of all kinds, but they are great for those dealing with hand soreness ...

People Pulling out a traditional vacuum isn't very practical when tackling everyday messes. Instead, opt for a handheld vacuum, that’s ideal for light cleaning duties. Right now, you can score ...

Many of the cordless models in our handheld vacuum ratings have longer-lasting lithium-ion batteries, and the run times for the models in our tests range from 9 to 23 minutes. A number of new ...

A vacuum pump is a powerhouse machine that removes air, gases, moisture, and contaminants from a system to create a clean environment for refrigerants. These efficient and powerful machines need clean ...

A hand-operated vacuum transmission fluid pump makes this job simple and clean. You can remove one-third to one-half of the fluid from the transmission at a time, and the rest will remain in the ...

Including upright, cordless, wet-dry, robot, and handheld models In This Article ... This affordable upright vacuum has a battery-powered design, making it quick and easy to move between rooms ...

The power-steering pump pressurizes the hydraulic fluid that helps the driver turn the steering wheel. Signs of steering-pump failure include leaks, noises or decreased assistance while steering.

“Wine can (and) will oxidize and turn into vinegar within a few days if the air is not removed by a hand operated vacuum pump ...