Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents
Patent
1975-09-17
1977-11-01
Cohan, Alan
Fluid handling
Diverse fluid containing pressure systems
Fluid separating traps or vents
137202, F16T 120
Patent
active
040561186
ABSTRACT:
An improved radiator vent valve and syphon tube assembly is provided, the vent valve including a valve body and a threaded valve nipple adapted to engage a wall of a radiator. The nipple defines a passage communicating between the interior of the radiator and the interior of the valve body and the syphon tube drains condensate from the interior of the valve body into the radiator. The syphon tube includes a tubular portion adapted to be inserted into the passage defined by the nipple, the tubular portion including resilient tabs about its outer surface which permit insertion of the tubular portion into the nipple and after insertion, yieldably engage an inner surface of the nipple. The syphon tube also includes a generally trough-shaped portion coplanar with the tubular portion and another trough-shaped portion oriented to direct the flow of condensate downward when the tubular portion is horizontal. The three portions of the syphon tube provide a substantially continuous flow path. The syphon tube may be inserted into the valve nipple of a fully assemble vent valve which facilitates assembly, handling and shipping of the valve and substantially eliminates the scrapping of vent valves as a result of damaged syphon tubes. Preferably, the syphon tube is injection molded from a plastic such as polypropylene.
REFERENCES:
patent: 888913 (1908-05-01), Leuthesser
patent: 1075294 (1913-10-01), Leuthesser
patent: 2750232 (1956-06-01), Szantag
Bradford Jay H.
Terp Norman T.
Cohan Alan
Eaton Corporation
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