Patent ID: 8297358

Claim:
A downhole tool comprising: a housing having an inner wall surface defining a bore, a first housing port, and a second housing port disposed below the first port; an inner sleeve in sliding engagement with the inner wall surface of the housing, the inner sleeve having an inner sleeve outer wall surface and an inner sleeve actuator for moving the inner sleeve from a first inner sleeve position to a second inner sleeve position; and a fluid flow restrictor having an opened position providing fluid communication between the housing bore and the second housing port and a closed position blocking fluid communication between the housing bore and the second housing port, the fluid flow restrictor being disposed between the inner sleeve and the inner wall surface of the housing and being operatively associated with the inner sleeve, wherein, when the inner sleeve is in the first inner sleeve position, the first housing port is blocked by the inner sleeve and the fluid flow restrictor is in the closed position blocking fluid communication between the housing bore and the second housing port, wherein, when the inner sleeve is in the second inner sleeve position, the housing bore is in fluid communication with the first housing port and the fluid flow restrictor is in the closed position blocking fluid communication between the housing bore and the second housing port, and wherein, when the inner sleeve is moved from the second position toward the first position, the fluid flow restrictor is moved from the closed position to the opened position placing the housing bore in fluid communication with the second housing port.