Single-piece manifold

Details Single-piece manifold Single-piece manifold

2005-03-01

2005-03-01

Hwu, Davis D (Department: 3752)

Fire extinguishers

Alarms

C169S020000, C169S046000, C169S047000, C169S016000, C169S017000, C169S090000

Reexamination Certificate

active

06860331

ABSTRACT:
A single-piece manifold for use with a residential or other building sprinkler system is disclosed which comprises a body having an inlet in communication with a water supply and an outlet that communicates with a sprinkler system having a conduit adapted for fluid flow formed between the inlet and the outlet. The body includes a main valve that provides a means of manually shutting off communication with the water supply and a combination pressure relief and test valve for draining and testing the sprinkler system. A pair of check valves are positioned across the conduit for preventing fluid flow therethrough when the sprinkler system is inactive with a space being defined between the first and second check valves for communication with a vent passageway. The vent passageway communicates with atmosphere and prevents false alarms due to water surges in the supply line.

REFERENCES:
patent: 1699085 (1929-01-01), Vera
patent: 2166264 (1939-07-01), Piper
patent: 3857277 (1974-12-01), Moore
patent: 4598734 (1986-07-01), Moyes
patent: 4991655 (1991-02-01), McHugh
patent: 5154232 (1992-10-01), McHugh
patent: 5236002 (1993-08-01), Martin et al.
patent: 5297635 (1994-03-01), McHugh
patent: 5390744 (1995-02-01), McHugh
Potter Electric Signal Company, Residential Riser, Mar. 2000; MFG #5401083-Rev C; pp 1 and 2.
AGF Manufacturing Inc., Residential Riser Pack, date unknown.
Victaulic, Riser Manifold Assembly, Mar. 2001, #3089 Rev A.
Reliable Automatic Sprinkler's Company, Reliable Riser—Residential, date unknown, Bulletin.
Tyco Flow Controls, Riser Manifold, date unknown.

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