Sprinkler head
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 4, 2000
Grant Date -
N/A
app pub date -
Mar 2, 1999
filing date -
Mar 13, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sprinkler head connected with a fire extinguishing piping maintains a valve body in a closed state so as to contain compressed fire extinguishing water filled in a fire extinguishing piping when there is no fire, but opens and operates the valve body so as to discharge the compressed and supplied fire extinguishing water at the time of a fire. The fire extinguishing water is contained by closing the gap between the valve body and the peripheral part of the valve body by a sealing member mounted in the valve body, prepared by coating a rubber base material with a fluorine contained resin coating material. The rubber base material of the sealing member can have a round, oval, U-shaped, Y-shaped, or X-shaped cross-sectional shape. The rubber base material can be made from a fluorine rubber or a silicon rubber. The present invention is to utilize both advantages of the anti-corrosion property and the weathering resistance of a fluorine resin and the elasticity of a rubber, to obtain the sealing property with respect to the fire extinguishing water with a smaller load, and to prevent the malfunction of the sprinkler head caused by alteration or adhesion.
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Cited Art Landscape
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