Patent ID: 7380570
Filing Date: 2008-06-03
Classification: F16K,Y10T

Abstract:
1. A valve apparatus, comprising: an external body defining an internal cavity with a first capturing element, the external body further defining at least a first fluid connection, a second fluid connection, and a third fluid connection; a single body internal valve sleeve adapted to sealably engage the internal sleeve cavity to an adjustable depth by using a second sleeve capturing element adapted to engage the first sleeve capturing element, the depth of the internal valve sleeve adapted to be adjusted by a force external to the external body, the internal valve sleeve defining a first sealed chamber having a first aperture set flowably connected to the first fluid connection, a second sealed chamber having a second aperture set flowably connected to the second fluid connection, and a third sealed chamber having a third aperture set flowably connected to the third fluid connection; the internal valve sleeve further defining an internal stem bore with at least a first unsealed end forming a first exhaust port; a valve stem including a sealed section, the valve stem adapted to sealably move within the internal stem bore to alternatively provide a first flow path from the first aperture set to the second aperture set or provide a second flow path from the second aperture set to the third aperture set; and, at least one seal adapted to sealably contact the valve stem and the internal stem bore, the seal adapted to sealably move within the internal stem bore.