F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
251/87
F16K 25/00 (2006.01) F16K 41/00 (2006.01)
Patent
CA 1079255
"VACUUM BREAKER VALVE AND STEM PACKING ASSEMBLY" ABSTRACT OF THE DISCLOSURE Sill cock having novel vacuum breaking stem packing assembly to break vacuum between the shutoff valve and the cock and a vacuum breaker shut off valve to close same upon encountering a vacuum or reduced pressure in the main.
287773
Hirsch Elder F.
Hirsch Ronald F.
Hirsch Elder F.
Hirsch Ronald F.
LandOfFree
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