Inflatable bladder valve for irrigation pipe

Details Inflatable bladder valve for irrigation pipe Inflatable bladder valve for irrigation pipe

1992-11-09

1993-08-31

Walton, George L.

Fluid handling

With repair, tapping, assembly, or disassembly means

Assembling, disassembling, or removing cartridge type valve

138 93, F16K 710, F16L 55136

Patent

active

052400310

ABSTRACT:
An inflatable bladder type valve that is used to restrict the flow of water passing through an irrigation pipe is described for insertion through a standard size opening or through an enlarged opening in an irrigation pipe. Means to convey a fluid, such as air, under pressure to the bladder type valve and an air release valve for limiting the air pressure are described. Means to secure the bladder type valve in position include a reinforced hook attached to a hose, a tapered wedge attached to a hose, and a high friction surface on the valve. A covering is placed over the bladder to restrict the dimensions of the bladder when it is inflated. A taped plug is described for restricting the flow of water through the enlarged opening when the valve is removed.

REFERENCES:
patent: 1814677 (1931-07-01), Fennema
patent: 1906151 (1933-04-01), Goodman
patent: 2279257 (1942-04-01), Svirsky
patent: 2753876 (1956-07-01), Kurt
patent: 2843154 (1958-07-01), Hosking
patent: 3320750 (1967-05-01), Haise et al.
patent: 3564103 (1971-02-01), Brachschob
patent: 4144908 (1979-03-01), Dunn
patent: 4203473 (1980-05-01), Roberson, Sr.
patent: 4565222 (1986-01-01), Lundman
patent: 4964439 (1990-10-01), Vanderlans

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