The predecessor to the vacuum pump was the suction pump, which was known to the Romans.
From the en.wikipedia.org
This equals the maximum height of a suction pump, which operates by the same principle.
From the en.wikipedia.org
At intervals, the grinding hum of a suction pump clears his airway.
From the denverpost.com
In their detector, a suction pump draws suspect air past an electromagnet, a light source and an optical detector.
From the newscientist.com
The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity.
From the en.wikipedia.org
With a double-suction pump tied to a close-coupled elbow, flow distribution to the impeller is poor and causes reliability and performance shortfalls.
From the en.wikipedia.org
In the Roman city of Pompeii, a dual-action suction pump was found, proving that the ancient Romans had access to this kind of technology.
From the en.wikipedia.org
Soon, with the help of a miniature suction pump and some ordinary laboratory air they had captured 63 solitary dust particles in their mesh.
From the newscientist.com
A six-year-old girl has been hospitalized after a horrifying accident at a swimming pool, when she sat on an open drain and a powerful suction pump tore out part of her intestinal tract.