GB1400618A - On-off sprinkler - Google Patents
On-off sprinklerInfo
- Publication number
- GB1400618A GB1400618A GB5144672A GB5144672A GB1400618A GB 1400618 A GB1400618 A GB 1400618A GB 5144672 A GB5144672 A GB 5144672A GB 5144672 A GB5144672 A GB 5144672A GB 1400618 A GB1400618 A GB 1400618A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pilot valve
- chamber
- valve
- passage
- disc
- Prior art date
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mechanical Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Temperature-Responsive Valves (AREA)
- Safety Valves (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
1400618 Fluid-pressure servomotor systems ITT INDUSTRIES Inc 8 Nov 1972 [8 Nov 1971] 51446/72 Heading G3P [Also in Division A5] An automatic "on-off" sprinkler involving main valve means operated by a pilot valve in fluid communication therewith is characterized in that the pilot valve is actuated by a bi-metal disc which resiliently biases the pilot valve to a closed position and which moves the pilot valve member between open and closed positions by movement of its centre relative to its peripheral edges, in a so-called "snap" action. Figs.1 and 2 show the "off" and "on" positions of the sprinkler. In Fig.1 sprinkler body 10 defines threaded opening 12, flow passage 14 and outlet 16. Cylindrical chamber 20 is formed between the outer wall of 10 and internal walls 18, 22, and further chamber 28 and threaded opening 26 are defined by wall 22 and lower wall 24 of 10. Chambers 20 and 28 communicate via passage 30, and chamber 28 leads to flow passage 14 via passage 32. Fitted in opening 12 is threaded inlet member 34 providing axial flow passage 38 therethrough and annular valve seating surface 39 as its inner end. Piston assembly 40 closing the upper end of chamber 20 comprises stepped piston 42 whose upper and lower members 46, 44, slidably fit in bore 38 and chamber 20 respectively, O-rings 54 and 74 in grooves 56 and 72 ensuring fluid seal. The piston has fluid ports 53 in upper part 46 and has axial bores 48, 50, 52 of increasing size. Strainer 84 and restriction member 82 with orifice 86 are retained in bore 50 by ring 80, and coil spring 90 acting between ring 80 and wall 22 biases the piston towards seat 39. The area of piston assembly 40 subject to pressure in chamber 20 exceeds that in passage 38 and the piston 42 will therefore normally be maintained in the closing position. The pilot valve assembly 100 comprises a member 102 having threaded cylindrical part 104 which engages in opening 26, radial flange 106, and axial bore 108 which houses pilot valve 110. The valve has cylindrical portion 112 which slides in bore 108 and cavity 28, and is of a length such that inner end 120 abuts seat 31 surrounding passage 32, O-rings 116 and 122 being provided at 118, 124 respectively. Bi-metal disc 126 is centrally screwed into the outer end of valve 110 and peripherally secured to radial flange 106 by screws 132. Disc 126 is cupped and its convex surface urges valve 110 towards the closed position. The disc is designed to move with a "snap" action towards the reverse cup shape at e.g. 185F and to return to its original shape at e.g. 100F. Conventional deflector 130 is suspended from outlet 16 by yoke 131. When the sprinkler is installed and the water supply turned on, water passing through orifice 86 fills chambers 20, 28 and maintains piston assembly 40 against valve seat 39. Bi-metal disc 126 maintains pilot valve 110 closed to the passage of water from 28 to 32. In the event of a rise in temperature around disc 126 to e.g. 185F, disc 126 reverses its curvature in a "snap" motion dislodging pilot valve 110 from seat 31 and opening passage 32 to fluidflow from chamber 28. When water pressure in chamber 20 has dropped sufficiently, mains pressure in 38 overcomes the force of spring 90 and moves piston assembly 40 to the Fig.2 position and water is discharged via ports 53 to outlet 16. When the fire is extinguished and disc 126 cools to e.g. 100C it reverts to its original conformation and closes pilot valve 110. Chambers 28, 20 again fill with water and the increased pressure therein eventually restores piston assembly 40 to the Fig.1 or "off" position.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US19664171A | 1971-11-08 | 1971-11-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1400618A true GB1400618A (en) | 1975-07-16 |
Family
ID=22726227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5144672A Expired GB1400618A (en) | 1971-11-08 | 1972-11-08 | On-off sprinkler |
Country Status (11)
Country | Link |
---|---|
US (1) | US3757866A (en) |
JP (2) | JPS4858697A (en) |
BE (1) | BE790961A (en) |
DE (1) | DE2253576C3 (en) |
FR (1) | FR2160083A5 (en) |
GB (1) | GB1400618A (en) |
IT (1) | IT972223B (en) |
LU (1) | LU66418A1 (en) |
NL (1) | NL7214620A (en) |
NO (1) | NO135346C (en) |
SE (1) | SE373289B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2524999A1 (en) * | 1982-04-12 | 1983-10-14 | Indufer Ag | Temp. protected lever assembly for operation of stopcock - uses bimetal strip to release locking ball to allow spring to close valve at predetermined temp. |
WO1992010238A1 (en) * | 1990-12-07 | 1992-06-25 | Kidde-Graviner Limited | Heat responsive valve and sprinkler |
GB2308977A (en) * | 1994-08-01 | 1997-07-16 | Grinnell Corp | Automatic on-off fire sprinkler |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3835931A (en) * | 1972-05-25 | 1974-09-17 | W Livingston | Discharge head and fire protection system utilizing same whereby the head is actuatable in response to two separate temperatures |
JPS5045098U (en) * | 1973-08-23 | 1975-05-07 | ||
JPS5062997U (en) * | 1973-10-03 | 1975-06-09 | ||
US3848676A (en) * | 1973-12-26 | 1974-11-19 | Texas Instruments Inc | Thermally actuated valve assembly |
US3924687A (en) * | 1974-02-20 | 1975-12-09 | Viking Corp | Valve and sprinkler head for automatic fire extinguishing systems |
US3857446A (en) * | 1974-05-22 | 1974-12-31 | T Kenny | Temperature-sensitive snap-action valve |
US4121665A (en) * | 1975-03-20 | 1978-10-24 | Standard Fire Protection Equipment Co. | Automatic sprinkler head |
JPS5256798A (en) * | 1975-10-31 | 1977-05-10 | Matsushita Electric Works Ltd | Sprinkler head |
JPS5255298A (en) * | 1975-10-31 | 1977-05-06 | Matsushita Electric Works Ltd | Sprinkler head |
JPS53101500U (en) * | 1977-01-20 | 1978-08-16 | ||
US4128128A (en) * | 1977-06-27 | 1978-12-05 | Grinnell Fire Protection Systems Company, Inc. | Diaphragm actuated sprinkler head |
EP0018065A1 (en) * | 1979-02-28 | 1980-10-29 | MATHER & PLATT LIMITED | On/off sprinkler |
US4359098A (en) * | 1980-10-15 | 1982-11-16 | U.S. Fire Control Corporation | Automatic on-off fire sprinkler head |
US4553602A (en) * | 1981-08-03 | 1985-11-19 | Pieczykolan George S | Automatic on-off sprinkler head |
US4923013A (en) * | 1989-08-14 | 1990-05-08 | Gennaro Sergio K De | Fire sprinkler system and automatic shut-off valve therefor |
US5303778A (en) * | 1992-03-16 | 1994-04-19 | Peter Vari | On-off type sprinkler |
US5465905A (en) * | 1994-03-17 | 1995-11-14 | Mister Dripper Company, Llc | Irrigation system with multi-functional irrigation control valves |
US5667017A (en) † | 1994-09-17 | 1997-09-16 | Awab Umformtechnik Gmbh & Co. Kg | Atomizer for generating water-mists in fire-fighting systems |
US6068205A (en) * | 1997-05-29 | 2000-05-30 | Vari; Peter | On-off control for sprinklers and the like employing a sealing membrane |
GB0027190D0 (en) * | 2000-11-07 | 2000-12-27 | Boc Group Plc | Valves |
GB2390018A (en) * | 2002-06-25 | 2003-12-31 | Aqua Mist Fire Technology Ltd | Sprinkler system |
US7845425B2 (en) * | 2009-01-26 | 2010-12-07 | Matt Flynn | Fire sprinkler with cutoff valve, tamper-resistant features and status indicator |
US8387712B2 (en) * | 2009-01-26 | 2013-03-05 | Matt Flynn | Fire sprinkler with ball-type cutoff valve and tamper-resistant features |
US9421405B1 (en) | 2013-03-18 | 2016-08-23 | Williamsrdm, Inc. | Stovetop fire extinguisher initiator with fuse device and method |
US9597534B1 (en) | 2013-08-12 | 2017-03-21 | Williamsrdm, Inc. | Stovetop fire suppressor initiator device and method |
US9636530B2 (en) | 2014-02-21 | 2017-05-02 | Williamsrdm, Inc. | Stovetop fire suppressor with thermal glass bulb actuation and method |
US9517370B2 (en) | 2014-02-21 | 2016-12-13 | Williamsrdm, Inc. | Distribution of fire suppressing agent in a stovetop fire suppressor and method |
CN106964094B (en) * | 2017-03-02 | 2019-07-16 | 浙江欧伦泰防火设备有限公司 | Suspended automatic fire extinguisher |
CN109224353B (en) * | 2018-09-04 | 2024-03-22 | 江苏人和环保设备有限公司 | Fire-fighting water spray head for dust remover |
US20230211198A1 (en) * | 2022-01-04 | 2023-07-06 | Carrier Corporation | Inerting intermittent suppression system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US917292A (en) * | 1908-07-03 | 1909-04-06 | William F Hankee | Automatic sprinkler system. |
US1241209A (en) * | 1910-05-26 | 1917-09-25 | Gen Fire Extinguisher Co | Dry-pipe valve. |
US1913035A (en) * | 1929-03-01 | 1933-06-06 | Gen Fire Extinguisher Co | Sprinkler |
US1826088A (en) * | 1929-03-11 | 1931-10-06 | Ostlind Oscar Joel | Pressure operated valve |
US2101338A (en) * | 1935-01-04 | 1937-12-07 | Kitson Company | Temperature relief valve device |
US2230179A (en) * | 1939-01-17 | 1941-01-28 | Cesar J Cid | Sprinkler head for fire extinguishing systems |
US2647017A (en) * | 1951-04-19 | 1953-07-28 | Ind Res Inst | Nozzle |
-
1971
- 1971-11-08 US US00196641A patent/US3757866A/en not_active Expired - Lifetime
-
1972
- 1972-10-27 NL NL7214620A patent/NL7214620A/xx unknown
- 1972-10-31 NO NO3914/72A patent/NO135346C/en unknown
- 1972-11-02 DE DE19722253576 patent/DE2253576C3/en not_active Expired
- 1972-11-03 SE SE7214247A patent/SE373289B/en unknown
- 1972-11-03 IT IT31260/72A patent/IT972223B/en active
- 1972-11-06 LU LU66418A patent/LU66418A1/xx unknown
- 1972-11-06 BE BE790961A patent/BE790961A/en unknown
- 1972-11-08 GB GB5144672A patent/GB1400618A/en not_active Expired
- 1972-11-08 FR FR7239506A patent/FR2160083A5/fr not_active Expired
- 1972-11-08 JP JP47111318A patent/JPS4858697A/ja active Pending
-
1979
- 1979-03-09 JP JP1979030344U patent/JPS5618371Y2/ja not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2524999A1 (en) * | 1982-04-12 | 1983-10-14 | Indufer Ag | Temp. protected lever assembly for operation of stopcock - uses bimetal strip to release locking ball to allow spring to close valve at predetermined temp. |
WO1992010238A1 (en) * | 1990-12-07 | 1992-06-25 | Kidde-Graviner Limited | Heat responsive valve and sprinkler |
GB2308977A (en) * | 1994-08-01 | 1997-07-16 | Grinnell Corp | Automatic on-off fire sprinkler |
GB2308977B (en) * | 1994-08-01 | 1999-05-19 | Grinnell Corp | Automatic on-off fire protection sprinkler |
Also Published As
Publication number | Publication date |
---|---|
IT972223B (en) | 1974-05-20 |
NL7214620A (en) | 1973-05-10 |
NO135346B (en) | 1976-12-20 |
US3757866A (en) | 1973-09-11 |
DE2253576B2 (en) | 1975-05-22 |
JPS4858697A (en) | 1973-08-17 |
SE373289B (en) | 1975-02-03 |
NO135346C (en) | 1977-03-30 |
LU66418A1 (en) | 1973-02-01 |
DE2253576C3 (en) | 1976-01-22 |
JPS54131800U (en) | 1979-09-12 |
BE790961A (en) | 1973-05-07 |
JPS5618371Y2 (en) | 1981-04-30 |
DE2253576A1 (en) | 1973-05-17 |
FR2160083A5 (en) | 1973-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1400618A (en) | On-off sprinkler | |
US3979105A (en) | Valve with improved flow passage | |
US3022039A (en) | Diaphragm for valve | |
CA2017009A1 (en) | Solenoid operated faucet | |
US3476353A (en) | Servovalve | |
US2745628A (en) | Valve | |
ES454891A1 (en) | Shut-off valve | |
US4285361A (en) | Slow closing faucet | |
US3389717A (en) | Removable valve unit with flow control device | |
US3542289A (en) | Snap action thermally responsive valve | |
US3735772A (en) | Water valve apparatus | |
US2448429A (en) | Pressure relief valve | |
US5584432A (en) | Anti-scald valve with shape memory alloy actuator | |
US4887637A (en) | Pressure compensating flow control device | |
US3460798A (en) | Pilot actuated valve | |
GB2099112A (en) | Fluid pressure governor | |
US4739793A (en) | Thermostatically operated valve | |
US3439873A (en) | Bi-directional pressure relief valve | |
USRE29155E (en) | On-off sprinkler | |
US5520208A (en) | Resilient seal for a liquid-gas accumulator | |
US3920216A (en) | Lever operated control valve | |
US3454041A (en) | Pressure reducer with check valve | |
US3550614A (en) | Contaminant barrier for solenoid valves | |
GB2149148A (en) | Servo operated liquid level control valve | |
CA1171338A (en) | Automatic on-off fire sprinkler head |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PCNP | Patent ceased through non-payment of renewal fee |