F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
277/47
F16J 15/16 (2006.01) F16J 15/24 (2006.01)
Patent
CA 1128569
ABSTRACT A shaft sealing apparatus for attachment about a rotatable shaft for preventing leakage along the shaft has a housing with a fixed end plate and a movable gland follower for defining a stuffing box about the shaft. One or more packing assemblies are positioned axially adjacent one another in the stuffing box. Each packing assembly has a compressible packing encircling the shaft, a fluid filled elastomeric compression torus of ring encircling the compressible packing and an axially movable spacer positioned around the shaft adjacent the compressible packing and the compression ring. The spacer may be hollow with an input and exit port for circulating a coolant fluid therethrough. The spacer may also have a radial passageway which is opened to the surface of the shaft whereby lubricant can be applied to the shaft. The gland follower exerts a constant axial force on the packing assemblies.
329016
Gowling Lafleur Henderson Llp
Stevens James N.
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