Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Liquid supplied at valve interface
Patent
1989-01-19
1990-01-02
Rivell, John
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Liquid supplied at valve interface
13751215, 137550, 137859, 383103, 229DIG14, 426118, F16K 5100, F16K 1516
Patent
active
048906379
ABSTRACT:
A one way valve for flexibly walled packages is disclosed. The valve comprises a unitary valve body having an outer face with a raised anvil having a first valve seat surrounding a central depression. A generally planar surface is provided adjacent the anvil forming a second valve seat. The second valve seat terminates in an outer wall which includes a first marginal portion extending towards the anvil and a second marginal portion extending away from the anvil. An elastic diaphragm is also provided which seats on the second valve seat with at least a part of the diaphragm being below the first marginal portion of the outer wall. At least one aperture is provided through the valve body from the outer face to an inner face. The aperture opens at one end onto the second valve seat and at the other end onto an indented portion of the inner face. A filter is housed in the indented portion across the other end of the aperture opening. The valve body is securable to a web of the flexibly walled packaging around the second marginal portion. The web, when the valve body is so secured, is stretched across the first valve seat and has a hole punched therein. Pressure, in at least one of the apertures, can raise a portion of the diaphragm away from the second valve seat and subsequently raise a portion of the web away from the first valve seat.
REFERENCES:
patent: 2946502 (1960-07-01), Metzger
patent: 3432087 (1969-03-01), Costello
patent: 3595467 (1971-07-01), Goglio
patent: 3628720 (1971-12-01), Schmedding
patent: 3799427 (1974-03-01), Goglio
patent: 3949934 (1976-04-01), Goglio
patent: 4000846 (1977-01-01), Gilbert
patent: 4134535 (1979-01-01), Barthels et al.
patent: 4206870 (1980-06-01), DeVries
patent: 4310118 (1982-01-01), Kisida et al.
patent: 4444219 (1984-04-01), Hollenstein
Flavorcoffee Co. Inc.
Rivell John
LandOfFree
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