Steam restricter device
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United States of America Patent
Stats
-
Feb 18, 1992
Grant Date -
N/A
app pub date -
Feb 28, 1991
filing date -
Feb 28, 1991
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A steam restricter device of the present invention is designed for retrofit to an existing steam trap of the type including a bowl-shaped chamber-defining member having an opening in it for admitting steam and condensate, and a drain for passage of condensate from the chamber to a condensate return. The device includes a body having an upper portion and a lower portion of smaller outer diameter than the upper portion. The lower portion may be slidingly received in the drain without rotation. The body has a nozzle formed in it which is sized to permit passage of condensate, but to inhibit passage of steam. The upper portion has an intake in it which provides communication from the chamber to the nozzle, and the lower portion has an opening in it which provides communication from the nozzle to the condensate return. A generally tubular bushing fits around the lower portion of the body and sealingly engages a wall in the drain for sealing between the lower portion and the wall of the drainage opening. A filter cage is located by engagement with the body, upon assembly therewith, in a position in which all communication from the chamber to said opening in the upper portion is blocked except through the filter cage.
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