Patent ID: 6871668
Filing Date: 2005-03-29
Classification: F16K,Y10T

Abstract:
1. An actuator, comprising; a housing; wherein the housing forms a supply port, a control port, and an exhaust port a first poppet having a proximal end having a nipple extending therefrom, a distal end, and a poppet head therebetween, said first poppet slidably disposed within the housing; a second poppet having a proximal end having a nipple extending therefrom, a distal end, and a poppet head therebetween, said second poppet slidably disposed within the housing adjacent to the first poppet, the second poppet being engageable with the first poppet and the first poppet being engageable with a seat of the housing to establish a fluid flow configuration, wherein the second poppet is identical to the first poppet, wherein the first poppet and the second poppet are movable between a de-energized configuration wherein flow is prohibited between the supply port and the control port, prohibited between the exhaust port and the supply port, and permitted between the control port and the exhaust port, plural partially energized configurations wherein flow is permitted between the supply port and the control port, between the control port and the exhaust port, and between the exhaust port and the supply port, and a fully energized configuration wherein flow is prohibited between the control port and the exhaust port and flow is permitted between the supply port and the control port; a first poppet seat; a second poppet seat, each poppet head being configured to engage both poppet seats.