Fluid handling – With repair – tapping – assembly – or disassembly means – Assembling – disassembling – or removing cartridge type valve
Patent
1985-04-29
1986-11-18
Walton, George L.
Fluid handling
With repair, tapping, assembly, or disassembly means
Assembling, disassembling, or removing cartridge type valve
1374546, 137512, 417567, F16K 4300, F04B 700, B65B 332
Patent
active
046229906
ABSTRACT:
A valve assembly for use in for example a stirrup pump. The valve assembly has a body defining a bore into which a carrier is inserted. The carrier defines a tubular passageway with a pair of O-rings spaced apart along the length of that passageway. The passageway is of substantially uniform internal diameter and the O-rings are received in annular grooves formed in the inside surface of the passageway. Two balls are provided each associated with one of the O-rings and an inlet port is provided which communicates with the space in the passageway between the O-rings. The application of an excess pressure to the port drives fluid from the port through one of the O-rings whereas the application of a reduced pressure to the port draws fluid through the other O-ring to the port.
REFERENCES:
patent: 180375 (1876-07-01), Robinson
patent: 492699 (1893-02-01), Vaughn
patent: 2862478 (1958-12-01), Staats
patent: 3187680 (1965-06-01), Sutliff
patent: 3495544 (1970-02-01), Enssle
patent: 3661167 (1972-05-01), Hussey
patent: 4139469 (1979-02-01), Ralnin et al.
patent: 4230160 (1980-10-01), Buckley
Denis Ferranti Meters, Ltd.
Walton George L.
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