Fire sprinkler flow control device

Details Fire sprinkler flow control device Fire sprinkler flow control device

2006-04-11

2006-04-11

Scherbel, David A. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

Plunger interconnected or mounted bypass

C239S091000, C169S016000, C169S037000, C169S051000

Reexamination Certificate

active

07025285

ABSTRACT:
A fire sprinkler discharge control device for preventing fluids from being emitted from a fire sprinkler without having to turn off a fluid supply to the fire sprinkler. The control device may be formed from one or more bladders adapted to contain a fluid and one or more valves for passing fluids into and out of the bladder. The bladder may be adapted to fit between a support structure of a fire sprinkler and an exhaust port. Once in position, the bladder may be inflated to cut off fluid flow from an exhaust port of the fire sprinkler.

REFERENCES:
patent: 4222499 (1980-09-01), Lee et al.
patent: 4419096 (1983-12-01), Leeper et al.
patent: 4423829 (1984-01-01), Katz
patent: 4735239 (1988-04-01), Salmon et al.
patent: 5743337 (1998-04-01), MacDonald, III

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