Inflation control system

Details Inflation control system Inflation control system

1994-08-11

1996-11-05

Rivell, John

Fluid handling

Inflatable article

137269, 13759616, 251 3002, 2972846, A47C 454, F16K 31128

Patent

active

055707165

ABSTRACT:
An inflation control system including a high flow valve is controlled by pilot air selectively delivered by a piezo vent valve. The high flow valve includes a pilot input, an outlet and a main air chamber fed with main supply air through a main air conduit. The high flow valve further includes a diaphragm with an upper web, a lower web, a cylindrical member connecting the upper and lower webs and an annular ridge extending radially out around the cylindrical member. A pilot air supply is connected by a pilot air conduit to the pilot input. A piezo pilot valve interposed on the pilot air conduct opens or closes to provide or prevent the pilot air to the high flow valve. The pilot air shifts the high flow valve from a closed to an open state. A vent valve connected to the pilot air conduit removes the pilot air to allow the high flow valve to close. The high flow valve, the pilot air conduit, the piezo pilot valve and the vent valve may all be provided on a single valve module interconnectible with other valve modules of the same design.

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