F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
128/127, 277/5
F16L 17/02 (2006.01) A61B 17/22 (2006.01) A61M 25/00 (2006.01) A61M 39/06 (2006.01) F16J 15/32 (2006.01)
Patent
CA 2016905
A device for establishing a fluid-tight seal around a rotatable drive shaft has a housing which is formed with a straight bore through which the drive shaft is positioned. The bore has a narrow portion, a wide portion and a tapered portion between the narrow and wide portions. A beveled annular seal is positioned in the wide portion of the bore around the drive shaft with the bevel abutting the side of the tapered portion of the bore. An actuator is engaged to the housing and is movable to urge the seal against the tapered portion of the bore to constrict the seal around the drive shaft and establish a fluid-tight seal between the drive shaft and the annular seal. The housing further includes an expanded conforming portion. A flexible seal valve is positioned in the expanded portion to receive the drive shaft. The seal valve has a deformable wedge-shaped portion terminating in a normally closed slit when the shaft is removed. The seal valve prevents leakage when the shaft is inserted into or withdrawn from the housing.
Borden Ladner Gervais Llp
Interventional Technologies Inc.
LandOfFree
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