GB1307095A – Dual nozzle sprinkler heads
– Google Patents
GB1307095A – Dual nozzle sprinkler heads
– Google Patents
Dual nozzle sprinkler heads
Info
Publication number
GB1307095A
GB1307095A
GB1307095DA
GB1307095A
GB 1307095 A
GB1307095 A
GB 1307095A
GB 1307095D A
GB1307095D A
GB 1307095DA
GB 1307095 A
GB1307095 A
GB 1307095A
Authority
GB
United Kingdom
Prior art keywords
nozzle
coarse
fine
nozzles
sprinkler heads
Prior art date
1970-10-20
Legal status (The legal status 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 status listed.)
Expired
Application number
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Factory Mutual Research Corp
Original Assignee
Factory Mutual Research Corp
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.)
1970-10-20
Filing date
1970-10-20
Publication date
1973-02-14
1970-10-20
Application filed by Factory Mutual Research Corp
filed
Critical
Factory Mutual Research Corp
1973-02-14
Publication of GB1307095A
publication
Critical
patent/GB1307095A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
A—HUMAN NECESSITIES
A62—LIFE-SAVING; FIRE-FIGHTING
A62C—FIRE-FIGHTING
A62C37/00—Control of fire-fighting equipment
A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
Abstract
1307095 Automatic fire fighting systems FACTORY MUTUAL RESEARCH CORP 20 Oct 1970 49811/70 Heading ASA A method of fire-fighting comprises automatically discharging two extinguishant streams, one of relatively fine and the other of relatively coarse droplets. The method may be embodied in a fixed automatic sprinkler system involving either dual-nozzle sprinkler heads or a conventional single-nozzle head arrangement in which the fine and coarse sprinklers are interspersed. The nozzles are thermally actuated independently or simultaneously as required. Preferably the fine droplets are less than 1 mm in diameter, and the coarse greater than 2 mm. Figs. 3-5 illustrate alternative dual-nozzle sprinkler heads. In Fig. 3 the fine nozzle is jet nozzle 10 normally closed by quartz bulb 16, and the coarse nozzle is pendant nozzle 17 formed with discharge opening 18 and serrated distributor plate 20 and normally closed by cap 26 co-operating with link lever 22 and fuse 24. Both nozzles communicate with T-fitting 12 whose inlet is connected to water supply pipe 14, and a restricted orifice is situated upstream of outlet 18 to reduce the velocity and thus the pressure of the extinguishant issued from coarse nozzle 17. Bulb 16 may be adapted to release at a lower temperature than fuse 24. In Fig. 4 the water supply line 30 is horizontal, and X-type fitting 32 communicates with pendant coarse nozzle 17 and radial spray or fog nozzle 38 equipped with link lever fuse release 40. In Fig. 5 both nozzles are actuated by release 42. Valve 44 having serrated skirt 46 and stem 48 is seated against supply line 14. On actuation, the valve moves down so that skirt 46 rests on orifice plate 28, thereby opening both nozzles. Figs. 6-7 (not shown) illustrate an arrangement of separate interspersed fine and coarse sprinkler heads.
GB1307095D
1970-10-20
1970-10-20
Dual nozzle sprinkler heads
Expired
GB1307095A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB4981170
1970-10-20
Publications (1)
Publication Number
Publication Date
GB1307095A
true
GB1307095A
(en)
1973-02-14
Family
ID=10453626
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1307095D
Expired
GB1307095A
(en)
1970-10-20
1970-10-20
Dual nozzle sprinkler heads
Country Status (1)
Country
Link
GB
(1)
GB1307095A
(en)
Cited By (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2283420A
(en)
*
1993-11-02
1995-05-10
Graviner Ltd Kidde
Fire suppression system
GB2317338A
(en)
*
1996-08-12
1998-03-25
Grinnell Corp
Horizontal-type fire sprinklers
EP0806225A3
(en)
*
1996-05-06
1999-05-12
TOTAL WALTHER GmbH, Feuerschutz und Sicherheit
Fire extinguishing system for car park buildings
US6889774B2
(en)
2002-02-27
2005-05-10
The Reliable Automatic Sprinkler Co., Inc.
Fire protection sprinkler system for metal buildings
US8122969B1
(en)
2000-11-22
2012-02-28
Tyco Fire Products Lp
Low pressure, extended coverage, fire protection sprinkler
US8176988B2
(en)
1998-05-15
2012-05-15
Tyco Fire Products Lp
Early suppression fast response fire protection sprinkler
US8327946B1
(en)
2002-07-19
2012-12-11
Tyco Fire Products Lp
Dry sprinkler
US8469112B1
(en)
2002-07-19
2013-06-25
Tyco Fire Products Lp
Dry sprinkler
RU167481U1
(en)
*
2016-07-27
2017-01-10
Закрытое акционерное общество «Производственное объединение «Спецавтоматика»
SPRINKLER IRRIGATOR
1970
1970-10-20
GB
GB1307095D
patent/GB1307095A/en
not_active
Expired
Cited By (22)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2283420A
(en)
*
1993-11-02
1995-05-10
Graviner Ltd Kidde
Fire suppression system
EP0806225A3
(en)
*
1996-05-06
1999-05-12
TOTAL WALTHER GmbH, Feuerschutz und Sicherheit
Fire extinguishing system for car park buildings
GB2317338A
(en)
*
1996-08-12
1998-03-25
Grinnell Corp
Horizontal-type fire sprinklers
US5810263A
(en)
*
1996-08-12
1998-09-22
Grinnell Corporation
Deflector for horizontal-type fire sprinklers
GB2317338B
(en)
*
1996-08-12
2000-09-13
Grinnell Corp
Deflector for horizontal-type fire sprinklers
US8186448B2
(en)
1998-05-15
2012-05-29
Tyco Fire Products Lp
Early suppression fast response fire protection sprinkler
US8176988B2
(en)
1998-05-15
2012-05-15
Tyco Fire Products Lp
Early suppression fast response fire protection sprinkler
US8485270B2
(en)
1998-05-15
2013-07-16
Tyco Fire Products Lp
Early suppression fast response fire protection sprinkler
US8122969B1
(en)
2000-11-22
2012-02-28
Tyco Fire Products Lp
Low pressure, extended coverage, fire protection sprinkler
US8839877B1
(en)
2000-11-22
2014-09-23
Tyco Fire Products Lp
Low pressure, extended coverage, fire protection sprinkler
US8925641B1
(en)
2000-11-22
2015-01-06
Tyco Fire Products Lp
Low pressure, extended coverage, fire protection sprinkler
US8899341B1
(en)
2000-11-22
2014-12-02
Tyco Fire Products Lp
Low pressure, extended coverage, fire protection sprinkler
US8657020B1
(en)
2000-11-22
2014-02-25
Tyco Fire Products Lp
Low pressure, extended coverage, fire protection sprinkler
US7331399B2
(en)
2002-02-27
2008-02-19
The Reliable Automatic Sprinkler Co. Inc.
Fire protection sprinkler system for metal buildings
US6889774B2
(en)
2002-02-27
2005-05-10
The Reliable Automatic Sprinkler Co., Inc.
Fire protection sprinkler system for metal buildings
US8327946B1
(en)
2002-07-19
2012-12-11
Tyco Fire Products Lp
Dry sprinkler
US8746356B1
(en)
2002-07-19
2014-06-10
Tyco Fire Products Lp
Dry Sprinkler
US8528653B1
(en)
2002-07-19
2013-09-10
Tyco Fire Products Lp
Dry sprinkler
US8469112B1
(en)
2002-07-19
2013-06-25
Tyco Fire Products Lp
Dry sprinkler
US9636531B1
(en)
2002-07-19
2017-05-02
Tyco Fire Products Lp
Dry sprinkler
US10195473B1
(en)
2002-07-19
2019-02-05
Tyco Fire Products Lp
Dry sprinkler
RU167481U1
(en)
*
2016-07-27
2017-01-10
Закрытое акционерное общество «Производственное объединение «Спецавтоматика»
SPRINKLER IRRIGATOR
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Legal Events
Date
Code
Title
Description
1973-06-27
PS
Patent sealed
1981-06-03
PCNP
Patent ceased through non-payment of renewal fee
