Tag Archives: Venturi

Venturi vacuum valve device for saving water

Application Number: 00108326Application Date: 2000.04.07Publication Number: 1317684Publication Date: 2001.10.17Priority Information: International: G01F1/44Applicant(s) Name: John L. BlissAddress: Inventor(s) Name: JohnO L. BlissPatent Agency Code: 31100Patent Agent: gu junfengAbstract A venturi tube vacuum valve has a plunger fit in the tube. It has three openings. The first opening as water inlet is less than the second opening.… Read More »