Fire sprinkler apparatus and method
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United States of America Patent
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Mar 18, 2003
Grant Date -
N/A
app pub date -
Sep 9, 1998
filing date -
Sep 9, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Fire sprinkler apparatus (11) for use with a drop ceiling (13) of suspended tile (15) or sheetrock having a branch or run pipe (17), and a sprinkler head (26) connected to said branch or run pipe (17) by a drop nipple-reducing coupling assembly (29) which comprises a drop nipple (21), a reducing coupling (25) mounted on the bottom end (21b) of the drop nipple (21), a weld (27) joining the upper end (25b) of the reducing coupling (25) to the bottom end (21b) of the drop nipple (21) with the outer circumference of the reducing coupling (25) being the same size as the outer circumference of the drop nipple (21), and an escutcheon fitting (33) which slides over the drop nipple-reducing coupling assembly (29) for a predetermined distance until it is flush with the bottom surface of the tile (15).
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