Seal assemblies for water-well casings

Details Seal assemblies for water-well casings Seal assemblies for water-well casings

F - Mech Eng,Light,Heat,Weapons

16

L

166/47, 277/70

F16L 55/10 (2006.01)

Patent

CA 1051343

Abstract of the Disclosure: A seal for the upper ends of water- well casings includes a pair of cup-like devices, one inside the other, which extend over the end of the casing, and a central shaft which urges the cup devices apart to expand a rubber seal ring tightly against the outer periphery of the well casing.

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