Air pump

All air pumps contain a part that moves (vane, piston, impeller, diaphragm etc.)

[1] Pumps and compressors use very similar mechanisms, and basically perform the same action, but in different fluid regimes.

[2] Additionally, Guericke's air pump decreased any potential leaks between the piston and the cylinder by utilizing washers made from leather.

[4] In 1705, an English scientist by the name of Francis Hauksbee, developed a style of a double-barrelled air pump.

Hauksbee's double-barrelled air pump was used primarily for scientific research, and had the ability to create a vacuum.

[5] The Hill reports that, “HVAC systems, and the contractors who install them, are vital to the economy and our livelihoods.

A simple mechanism that consists of a flexible bag that has rigid boards or handles on each side.

When the bag is inflated or the handles are pulled away from each other a valve is opened on the side allowing air in.