Patent ID: 9027906
Filing Date: 2015-05-12
Classification: F16J,F16K

Abstract:
1. A filler assembly for a valve, with the valve including a body, a cap mounted to a top portion of the body and having an axial hole, and a valve rod extending through the axial hole of the cap, with the filler assembly adapted to be mounted in the axial hole of the cap, with the filler assembly adapted to seal a gap between the valve rod and an inner periphery of the axial hole, with the filler assembly comprising: a plurality of first fillers, with each of the plurality of first fillers including upper and lower faces spaced from each other in a longitudinal direction, with a first through-hole extending from the upper face through the lower face of each of the plurality of first fillers, with each of the plurality of first fillers further including an outer periphery between the top face and the bottom face thereof, with the outer periphery of each of the plurality of first fillers free of holes, and with the valve rod adapted to extend through the first through-hole of each of the plurality of first fillers; and a plurality of second fillers, with each of the plurality of second fillers including top and bottom faces spaced from each other in the longitudinal direction, with a second through-hole extending from the top face through the bottom face of each of the plurality of second fillers, with each of the plurality of second fillers further including an outer periphery between the top face and the bottom face thereof, with the outer periphery of each of the plurality of second fillers free of holes, and with the valve rod adapted to extend through the second through-hole of each of the plurality of second fillers, with the plurality of first fillers and the plurality of second fillers stacked upon each other, with each of the plurality of second fillers located between two adjacent first fillers, with a groove defined in each of the top and bottom faces of each of the plurality of second fillers, with the groove in the top face of each of the plurality of second fillers having substantially V-shaped cross sections and extending across a whole area of the top face of one of the plurality of second fillers, with the groove in the bottom face of each of the plurality of second fillers having substantially inverted V-shaped cross sections and extending across a whole area of the bottom face of one of the plurality of second fillers, with at least one of the upper and lower faces of each of the plurality of first fillers being conic, and with the groove of each of the top and bottom faces of each of the plurality of second fillers receiving and contacting a whole area of one of the upper and lower faces of one of the plurality of first fillers that is conic, wherein when one of the plurality of first and second fillers is subjected to a pressing force in the longitudinal direction, at least one of the plurality of first and second fillers is moved in the radial direction, and the outer periphery of the at least one of the plurality of first and second fillers presses against an outer periphery of the valve rod.