Fire extinguishers – Sprinkler heads – Direct support
Patent
1976-08-30
1978-08-29
Song, Robert R.
Fire extinguishers
Sprinkler heads
Direct support
277226, 277228, A62C 3714
Patent
active
041097270
ABSTRACT:
A sprinkler comprising a frame formed at one portion with a passage terminating at a seat, a closure disposed across the passage adjacent the seat, a seal having a pressure-impacted side and another side exposed to ambient pressure and being disposed between the closure and the seat, and a heat sensitive rupturable part disposed between another portion of the frame and the closure so as to hold the closure so disposed when the rupturable part is at ambient temperature and adapted to release the closure and the seal when the part is at elevated temperature, wherein the seal comprises a first sealing member disposed against the seat and a second sealing member disposed between a portion of the closure and the first sealing member, the second sealing member pressing the first sealing member against the seat and being covered by the first sealing member on the pressure-impacted side.
REFERENCES:
patent: 793357 (1906-06-01), Diederici
patent: 793821 (1905-07-01), Cass, Jr.
patent: 842725 (1907-01-01), Taylor
patent: 1733701 (1929-10-01), Taylor
patent: 1797919 (1931-03-01), Loepsinger
patent: 2085987 (1937-07-01), Loepsinger
patent: 2324170 (1943-07-01), Ofstie
patent: 2378273 (1945-06-01), Wilhelm
patent: 2661805 (1953-12-01), Lim
patent: 2859061 (1958-11-01), Reid
patent: 2893060 (1959-07-01), Wills
patent: 3007528 (1961-11-01), Gloeckler
patent: 3080000 (1963-03-01), Gloeckler
patent: 3171935 (1965-03-01), Gloeckler
patent: 3253657 (1966-05-01), Job
patent: 3273743 (1966-09-01), McColl
patent: 3385604 (1968-05-01), Traufler
patent: 3446286 (1969-05-01), Kreidler
patent: 3618814 (1971-11-01), Nagroski
patent: 3625289 (1971-12-01), Gloeckler
patent: 3633676 (1972-01-01), Gloeckler
patent: 3635370 (1972-01-01), Romanauskas
patent: 3714989 (1973-02-01), Gloeckler
patent: 3715700 (1973-02-01), Gloeckler
patent: 3812915 (1974-05-01), Livingston
patent: 3874456 (1975-04-01), Gloeckler
Mar Michael
Palmatier H. Dale
Song Robert R.
LandOfFree
Dual-seal sprinkler system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual-seal sprinkler system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual-seal sprinkler system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1627451