Patent ID: 7118114
Filing Date: 2006-10-10
Classification: F16J,F16K

Abstract:
1. An apparatus for providing a dynamic sealing arrangement for preventing leakage of a fluid along a movable shaft, comprising: a housing receiving the movable shaft therethrough; a first seal in the housing engaging the shaft; a second seal in the housing engaging the shaft in spaced relation to the first seal; a barrier sealant contained between the first and second seals; a load member adapted to pressurize the barrier sealant contained between the first and second seals, the load member comprising a piston offset from the shaft and seals arranged to be loaded by pressure of the fluid and farther comprising a sealant passageway connecting the piston to barrier sealant between the first and second seals; a third seal in the housing engaging the shaft in spaced relation to the second seal; a collection area in the housing between the second and the third seals; and a collection passageway in the housing connecting the collection area to an output port.