Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Liquid supplied at valve interface
Patent
1982-06-29
1984-04-24
Cohan, Alan
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Liquid supplied at valve interface
13751215, 13751625, 137856, 13751611, 383103, 426118, F16K 5100, F16K 1516
Patent
active
044442190
ABSTRACT:
The present invention is with respect to an overpressure valve for packages with flexible walls, having a valve body able to be fluid-tightly joined with such a package. The valve body has a flat valve seat having thereon a diaphragm with a valve shutting part. In the seat there are valve openings, each having a number of concentric ring-like channels round it in the seat. The concentric channels take up a sealant, more specially silicone oil. The diaphragm is made of a single piece of material running on one side of the walls to the other without any holes therein. It is only kept in position in a middle part of the valve seat so that the diaphragm may be moved freely, at least over the valve openings. In the case of a preferred form of the invention, the diaphragm is slipped loosely into the valve body in which it is kept in position by a keeper in a middle part thereof. The keeper may be fixed in position by friction or by a keying effect.
REFERENCES:
patent: 1075354 (1913-10-01), Henson
patent: 1276478 (1918-08-01), Bechtold
patent: 1797280 (1931-03-01), Zerk
patent: 2158351 (1939-05-01), Ames et al.
patent: 2752943 (1956-07-01), Doeg
patent: 3292652 (1966-12-01), Gallone
patent: 3354903 (1967-11-01), Caruso
patent: 3595467 (1971-07-01), Goglio
patent: 3679193 (1972-07-01), Nieboer
patent: 3799427 (1974-03-01), Goglio
patent: 4000846 (1977-01-01), Gilbert
Cohan Alan
Rivell John A.
Wipf AG Verpackungen
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