Distributor for fire protection sprinkler head

Details Distributor for fire protection sprinkler head Distributor for fire protection sprinkler head

1979-11-14

1981-07-28

Spar, Robert J.

Fire extinguishers

Sprinkler heads

Collapsible strut

169 37, 239498, 239500, 239504, A62C 3712

Patent

active

042805627

ABSTRACT:
A fire protection sprinkler head construction comprises a frame having at one end a water passage therethrough which normally is closed by a seal maintained in passage sealing position by a thermally sensitive strut which collapses in response to a predetermined increase in its temperature and enables water to flow through the passage. At the other end of the frame is a deflector against which water flowing through the passage impinges and is deflected outwardly in a spray. Encircling the deflector is an annular distributor having a plurality of circumferentially spaced apart blades which intercept water deflected outwardly by the deflector. The blades are twisted at their root ends and bent at their free ends to cause water impinging upon the blades to be divided into relatively large droplets and distributed circumferentially.

REFERENCES:
patent: 826886 (1906-07-01), Murray
patent: 828093 (1906-08-01), Danforth
patent: 990780 (1911-04-01), Rockwood
patent: 2664956 (1954-01-01), Barz
patent: 4136740 (1979-01-01), Groos et al.

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