Campbell Hausfeld/scott Fetzer Company

Jeffrey P VanHorn

Christopher Gruber

David O Shumate

Steven R Salmons

James W Happe, Jr

An apparatus includes a valve housing having an inlet port, a first chamber with a first outlet port, and a second chamber with a second outlet port. A first valve opens between the inlet port and the first chamber under a first level of pneumatic pressure at the inlet port. A second valve opens between the first chamber and the second chamber under a second, greater level of pneumatic pressure in the first chamber. A third valve opens between the second chamber and the first chamber under a third level of pneumatic pressure in the second chamber, with the third level being less than the first level.

Growing community of inventors

Saint Louis, MO, United States of America

Jeffrey P VanHorn