E - Fixed Constructions – 03 – B
Patent
E - Fixed Constructions
03
B
137/20
E03B 9/08 (2006.01) E03B 9/04 (2006.01)
Patent
CA 1094426
FIRE HYDRANT WITH IMPROVED SHOE AND VALVE ABSTRACT OF THE DISCLOSURE A fire hydrant having a generally elbow-shaped hydrant Shoe with an improved interior bowl confirguation and an improved hydrant valve for minimizing head or flow loss of the fire hy- drant between the inlet opening of the shoe and the outlet noz- zle positioned on the upper portion of the hydrant barrel. The interior bowl of the shoe, adjacent its inlet, is provided with a diverging transitional surface of rotation having a generally part frusto conical shape and, adjacent its outlet, is provided with a converging transitional surface of rotation having a gen- erally part frusto conical shape, the transitional surfaces of rotation merging with the shoe's part spherical chamber. The valve element of the hydrant valve is provided with a generally conically shaped converging surface on its downstream side which when open defines with said converging transitional surface of rotation and with a portion of said diverging surface of rota- tion an annular passage for the flow of fluid through the hy- drant shoe into the hydrant barrel, the annular passage varying in radial section from a diverging radial section to a converg- ing radial section.
289473
Gowling Lafleur Henderson Llp
Mueller Co.
LandOfFree
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