air pump

Many air mattresses now come with built-in electric air pumps, which are very convenient, provided you’re near a power outlet.

What’s nice is that many air mattress manufacturers are producing air pumps that are quieter than previous models, since some older pumps can be quite loud.

However, like the EasyStay, the QuickBed also lacks an air pump.

The structure stands firm with the help of three individual air chambers with valves that are compatible with electric air pumps, allowing you a quick and easy way to inflate and deflate.

A witness told police that she heard a popping sound at the gas station and saw two or three men around the air pump, one of whom pointed a silver handgun at Nix before fleeing the scene.

At Wheal Alfred they have a 64-inch cylinder; the air-pump is 20 inches, and the stroke is half that of the engine.

A connecting rod worked a balance-beam, which worked the air-pump, feed-pump, and plug-rod for moving the valves.

The engine was fixed directly over the pump-rods in the shaft, using neither main beam nor air-pump.

Wheal Concord pumping engine, in 1827 had a similar air-pump.

The atmosphere pressing on the piston like steam, the air is drawn from the pipes by a large air-pump and steam-engine.