WO2001068188A3 - Dry accelerator for sprinkler system - Google Patents

Dry accelerator for sprinkler system Download PDF

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Publication number
WO2001068188A3
WO2001068188A3 PCT/US2001/008760 US0108760W WO0168188A3 WO 2001068188 A3 WO2001068188 A3 WO 2001068188A3 US 0108760 W US0108760 W US 0108760W WO 0168188 A3 WO0168188 A3 WO 0168188A3
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
dry
dry accelerator
accelerator
gas
Prior art date
Application number
PCT/US2001/008760
Other languages
French (fr)
Other versions
WO2001068188A2 (en
Inventor
Joseph William Reilly
Original Assignee
Victaulic Co Of America
Joseph William Reilly
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Victaulic Co Of America, Joseph William Reilly filed Critical Victaulic Co Of America
Priority to AU2001245859A priority Critical patent/AU2001245859A1/en
Publication of WO2001068188A2 publication Critical patent/WO2001068188A2/en
Publication of WO2001068188A3 publication Critical patent/WO2001068188A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/64—Pipe-line systems pressurised
    • A62C35/66—Accelerators

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

A dry accelerator (1) for use in a dry, pressurized-gas, liquid sprinkler fire control and suppression system, that is response-sensitive to a decay in gas pressure in the system, caused by a system-triggering event, is disclosed. The dry accelerator is actuated to in turn accelerate the actuation of at least one other device in the system that controls the release of a liquid fire-extinguent. The dry accelerator generally includes a housing with two gas chambers (3, 4) therein, separated by a diaphragm. A rapid decline in system gas pressure causes a disequilibrium in pressure between the two chambers causing the device to become actuated. System response time is shorter than if the dry accelerator were not present, because the system pressure does not have to decline to as low a level before a system check valve is triggered to make the liquid extinguent available at the sprinkler heads. The dry accelerator is response-sensitive to a drop in system pressure of less than about 5 psi from the initial system pressure; and it is utilizable in all types of systems, regardless of the initial system operating gas pressure.
PCT/US2001/008760 2000-03-16 2001-03-16 Dry accelerator for sprinkler system WO2001068188A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001245859A AU2001245859A1 (en) 2000-03-16 2001-03-16 Dry accelerator for sprinkler system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52625000A 2000-03-16 2000-03-16
US09/526,250 2000-03-16

Publications (2)

Publication Number Publication Date
WO2001068188A2 WO2001068188A2 (en) 2001-09-20
WO2001068188A3 true WO2001068188A3 (en) 2002-05-30

Family

ID=24096542

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/008760 WO2001068188A2 (en) 2000-03-16 2001-03-16 Dry accelerator for sprinkler system

Country Status (2)

Country Link
AU (1) AU2001245859A1 (en)
WO (1) WO2001068188A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727878A (en) * 1969-10-06 1973-04-17 Norris Industries Quick opening device for dry-pipe valves of automatic sprinkler systems
US3785440A (en) * 1972-05-25 1974-01-15 Reliable Auto Sprinkler Co Pressure monitor and transducer
FR2334032A1 (en) * 1975-12-03 1977-07-01 Dunlop Ltd Rapid action water control for sprinkler systems - with compressed air in sensing system to allow operation at low temperatures
US4570719A (en) * 1984-06-01 1986-02-18 Grinnell Fire Protection Systems Company, Inc. Dry pipe valve accelerator
DE3940446A1 (en) * 1988-12-16 1990-06-21 Armo Bauelemente Fire-proof container for garage - with water jacket double-walled construction slung under roof of garage
WO1999059678A2 (en) * 1998-05-18 1999-11-25 Victaulic Fire Safety Company, L.L.C. Actuator for check valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5295503A (en) 1992-10-02 1994-03-22 Central Sprinkler Corporation Modular valve for a building standpipe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727878A (en) * 1969-10-06 1973-04-17 Norris Industries Quick opening device for dry-pipe valves of automatic sprinkler systems
US3785440A (en) * 1972-05-25 1974-01-15 Reliable Auto Sprinkler Co Pressure monitor and transducer
FR2334032A1 (en) * 1975-12-03 1977-07-01 Dunlop Ltd Rapid action water control for sprinkler systems - with compressed air in sensing system to allow operation at low temperatures
US4570719A (en) * 1984-06-01 1986-02-18 Grinnell Fire Protection Systems Company, Inc. Dry pipe valve accelerator
DE3940446A1 (en) * 1988-12-16 1990-06-21 Armo Bauelemente Fire-proof container for garage - with water jacket double-walled construction slung under roof of garage
WO1999059678A2 (en) * 1998-05-18 1999-11-25 Victaulic Fire Safety Company, L.L.C. Actuator for check valve

Also Published As

Publication number Publication date
WO2001068188A2 (en) 2001-09-20
AU2001245859A1 (en) 2001-09-24

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