Patent ID: 6916002

Claim:
A membrane valve mechanism comprising: a) a main valve body having an upper shell body, a lower shell body connected to a bottom of the upper shell body, and a valve cover connected to a top of the upper shell body; b) the valve cover having a magnetic valve located on a top thereof and movable between open and closed positions, and an upper chamber located on a bottom thereof; c) the upper shell body having: i) an upper duct located in a middle section of a top thereof and positioned adjacent to the upper chamber; ii) an upper air coupling located on an exterior of and communicating with the upper duct; and iii) an lower chamber located on a bottom thereof; d) the lower shell body having: i) an lower duct located through a middle section thereof and positioned adjacent to the lower chamber; and ii) an lower air coupling located on an exterior of and communicating with the lower duct; e) an upper membrane located between the upper chamber and the upper duct and having an upper valve gate selectively sealing the upper duct, the upper membrane controlling a communication between the upper air coupling and the upper duct; f) a lower membrane located between the lower chamber and the lower duct and having a lower valve gate selectively sealing the lower duct, the lower membrane controlling a communication between the lower air coupling and the lower duct; and g) an air tube located in outer peripheral walls of the main valve body, the air tube having a first end communicating with the upper chamber and a lower end communicating with the lower air coupling, wherein the upper chamber axially aligning with each of the upper duct, the lower chamber, and the lower duct.