Fire extinguishers – Sprinkler heads – Lever
Patent
1975-08-07
1977-04-05
Blunk, Evon C.
Fire extinguishers
Sprinkler heads
Lever
169 42, A62C 3706, A62C 3712
Patent
active
040156656
ABSTRACT:
An improved concealed sprinkler head for an automatic sprinkler system. The sprinkler head includes an orifice body that is mounted above the ceiling of the building and is connected to the water line. The body has an outlet which is normally enclosed by a valve cap, and the cap is held in the closed position by a latch assembly which includes a latch bar. One end of the latch bar is provided with a projection which engages an abutment on the orifice body while the opposite end of the latch bar is provided with a recess which contains a fusible metallic element, and a movable member, such as a ball or a series of balls, is engaged with the fusible element and projects outwardly from the latch bar and is engaged with a second abutment on the orifice body. The latch bar carries a decorative plate that is mounted flush against the ceiling and has a series of openings to provide improved heat transfer to the fusible element. When exposed to an elevated temperature, the fusible element will melt and spring pressure will force the movable member inwardly of the recess to release the latch bar and open the valve cap.
REFERENCES:
patent: 1606311 (1926-11-01), MacGregor
patent: 2004833 (1935-06-01), Rowley
patent: 2389331 (1945-11-01), Tyden
patent: 2389334 (1945-11-01), Tyden
patent: 3195647 (1965-07-01), Campbell et al.
patent: 3756321 (1973-09-01), Gloeckler
Fenske John W.
Simons John R.
Blunk Evon C.
Grunau Company Inc.
Kashnikow Andres
LandOfFree
Concealed sprinkler head does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Concealed sprinkler head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Concealed sprinkler head will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2262019