Sprinkler head

Details Sprinkler head Sprinkler head

2006-09-12

2006-09-12

Nguyen, Dinh Q. (Department: 3752)

Fire extinguishers

Sprinkler heads

C169S042000, C169S005000, C169SDIG001

Reexamination Certificate

active

07104335

ABSTRACT:
A sprinkler head having a first housing connected to a water supply pipe disposed inside a building ceiling. The sprinkler head includes a second housing coupled to the first housing and fixed to the ceiling surface. A deflector is adhered to the first housing for spraying water by being detached from the first housing. A locking unit is locked inside the second housing for maintaining the sealing state between the deflector and the second housing, and a heat responding unit is exposed to outside of the ceiling for sensing heat at the time of a fire occurrence and thus releasing a locking of the locking unit.

REFERENCES:
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patent: 4785888 (1988-11-01), Blum et al.
patent: 4977963 (1990-12-01), Simons
patent: 6044912 (2000-04-01), Tsuji et al.
patent: 6152236 (2000-11-01), Retzloff et al.
patent: 6439315 (2002-08-01), Onuki
patent: 07250912 (1995-10-01), None
patent: 08131575 (1996-05-01), None
patent: 2002078814 (2002-03-01), None

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