US3756321A - Flush type sprinkler - Google Patents
Flush type sprinkler Download PDFInfo
- Publication number
- US3756321A US3756321A US00241212A US3756321DA US3756321A US 3756321 A US3756321 A US 3756321A US 00241212 A US00241212 A US 00241212A US 3756321D A US3756321D A US 3756321DA US 3756321 A US3756321 A US 3756321A
- Authority
- US
- United States
- Prior art keywords
- sprinkler
- ceiling
- lower face
- plate
- escutcheon plate
- 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 - Lifetime
Links
Images
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
- A62C37/09—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers telescopic or adjustable
Definitions
- the escutcheon plate is normally secured in covering relation to the sprinkler which has a strut containing a heat responsive element with a different selected heat release temperature. Heat sensing fins in contact with the escutcheon plate are movable downwardly below the ceiling line to an exposed position upon release of the plate and thereby increase the sensitivity of the strut heat responsive element. Provisions are made for positioning of the sprinkler in the ceiling to insure proper liquid discharge and to protect the structure against ceiling tiles disrupting the distribution.
- a sprinkler having a sprinkler valve disposed above the level of a ceiling, the valve being retained in closed position by a strut and lever, the strut being releasable at a predetermined temperature.
- the strut is provided with heat sensing fins which are normally held in a horizon tal position by an escutcheon plate which covers the valve and its release mechanism.
- the escutcheon plate is held in place by resilient members that are attached to clips on the escutcheon plate, the clips being held to the plate by an eutetic alloy, and the resilient members are attached to a plate on the sprinkler valve.
- the heat sensing flns help to transmit heat to the heat responsive element for fast strut release upon their downward movement.
- the valve has a one piece cross head and a deflector plate.
- the sprinkler is provided with a gage and shield which aids in proper positioning in the ceiling and protects the structure from sagging ceiling tiles.
- FIG. 1 is a vertical sectional view of a sprinkler in accordance with the invention ready for use when required;
- FIG. 2 is a horizontal sectional view taken approximately on the line 22 of FIG. 1;
- FIG. 3 is a view in perspective of the gage and shield removed from the sprinkler.
- the sprinkler G includes a body 15 in threaded engagement at its upper end 16 in a water supply fitting 17, which is connected to a supply of water under pressure.
- the body 15 has an internal bore 19 with a seat 20 and rim 21 spaced inwardly from the lower end thereof.
- the body 15 has a transverse flange 22 with a cylin drical frame 23 in threaded engagement therewith and held against unloosening by one or more pins 24 in engagement therewith.
- a cover 25 is provided preferably held in place by a press fit and carried on the upper end of the body 15.
- the flange 22 has a pair of spaced openings 30 therein for the reception of a pair of guide rods 31 which have stop collars 32 at their upper ends to limit the downward movement thereof.
- the rods 31 are carried at their lower ends in a combined cross head and liquid deflector plate 33.
- a compression cone 34 is provided in engagement with the cross head 33, and includes a lower end 35.
- the cone 34 has a spherical upper end 36 which is in bearing engagement with a valve plug 37 and is of a shape selected to obtain a profile that will assist in retaining the valve plug 37 in the body 15.
- the valve plug 37 has a lower rim 38 which engages the rim 21 and a sealing packing 39, such as an O-ring, which engages the seat 20 of the body 15 and prevents fluid leakage.
- the lower end 35 of the compression cone 34 has control lever 42 in engagement therewith.
- the lever 42 is supported at one end of a pin 43 carried in the frame 23 and has its opposite end in engagement with a heat releasable strut 45.
- the strut 45 has a rod portion 46 with a locating collar 47. One end of the rod portion 46 is supported on an inwardly extending rim 48 on the frame 23.
- the strut 45 at the other end thereof has a cup portion 49 within which an insert 50 is provided of fusible eutectic alloy material, and melting at a predetermined temperature. In a particular embodiment this temperaturc can be 135 degrees F.
- the insert 50 normally rctains a ball 51 in its outward position and bearing on the rim 48, but upon melting permits the ball 51 to move inwardly in the cup portion 49 from its support position to a release position.
- the outer surface of the cup portion 49 has secured thereto metallic ribbon-like heat sensing fins 52, which are normally held in substantially horizontal position by an escutcheon plate 53 but the free ends of which can swing downwardly when released.
- the escutcheon plate 53 is of dish shape with a flat central portion 54 and an outer rim 55.
- the escutcheon plate 53 covers the opening 11 in the ceiling l and is held firmly against the ceiling by clips 56 which are engaged by springs 57 which at their upper ends are engaged with a spring plate 58 which has a central opening 59 in engagement with the upper end portion of the body 15.
- the clips 56 are secured to the escutcheon plate 53 by a layer of eutectic alloy 60 which, in the particular embodiment illustrated, melts at 117 F.
- a gage 65 which includes an upper plate portion 66 with an upstanding collar 67 in press fit engagement on the cover 25.
- the plate portion 66 has downwardly and outwardly extending legs 68 each of which has an outwardly extending foot 69.
- the feet 69 are located so as to have their upper faces flush with and engaging the lower exposed ceiling face 12.
- the gage 65 prevents the sprinkler from being installed too far above the ceiling face which would disrupt the distribution and thus positions the sprinkler for effective discharge as referred to below.
- the gage 65 also protects the sprinkler from disruption of the distribution which might occur upon sagging of ceiling tiles after installation.
- the sprinkler G as shown in FIG. 1 is ready and in condition for operation when required.
- the escutcheon plate 53 will be released from the clips 56 and fall. The free ends of the heat sensing fins 50 will then fall and become effective for heat transfer to the strut 45.
- the pressure effective from above on the strut 45 due to the water pressure in bore 19 on plug 37 and cone 34 and therefrom onto the ball 51 causes the ball 51 to move inwardly so that the strut 45 is also urged downwardly by force imparted thereto through the actuator lever 42 by cone lower end 35.
- the strut 45 and lever 42 drop and the valve plug 37 is moved outwardly and downwardly by the water pressure thereon.
- the cross and deflector plate 33 and guide rods 31 drop to the extent permitted by the stop collars 32, and as determined by the locating action of the gage 65.
- a sprinkler for mounting in a ceiling comprising a body with a frame normally disposed above the lower face of the ceiling,
- said body having a fluid supply connection and a discharge bore
- a cross head member vertically slidably mounted with respect to said body and including a deflector plate for diverting water discharged from said discharge bore
- cover means disposed on the lower face of the ceiling in covering relation to said frame
- temperature sensitive releasable means for holding said cover means in position and including members normally urging said cover in an upward direction, and
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
Description
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24121272A | 1972-04-05 | 1972-04-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3756321A true US3756321A (en) | 1973-09-04 |
Family
ID=22909725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00241212A Expired - Lifetime US3756321A (en) | 1972-04-05 | 1972-04-05 | Flush type sprinkler |
Country Status (3)
Country | Link |
---|---|
US (1) | US3756321A (en) |
JP (1) | JPS5414438B2 (en) |
CA (1) | CA944253A (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4015665A (en) * | 1975-08-07 | 1977-04-05 | Grunau Company, Inc. | Concealed sprinkler head |
EP0136650A2 (en) * | 1983-09-27 | 1985-04-10 | Wormald International Limited | Sprinkler head housing |
US4618002A (en) * | 1984-03-13 | 1986-10-21 | Grinnel Corporation | Fire protection sprinkler head |
US4926946A (en) * | 1988-11-08 | 1990-05-22 | Central Sprinkler Corporation | Pendent style sprinkler with cover |
US4976320A (en) * | 1989-05-25 | 1990-12-11 | Central Sprinkler Corporation | Concealed sprinkler with drop down deflector assembly, and improved fusible valve lever assembly |
US5080176A (en) * | 1989-05-25 | 1992-01-14 | Central Sprinkler Corporation | Directly mounted pendent-style sprinklers and covers |
US5083616A (en) * | 1989-05-25 | 1992-01-28 | Central Sprinkler Corporation | Ceiling sprinkler |
US5505383A (en) * | 1994-11-02 | 1996-04-09 | Grinnell Corporation | Fire protection nozzle |
US6114823A (en) * | 1997-12-30 | 2000-09-05 | Agf Manufacturing, Inc. | Circuit and apparatus for sensing fluid flow |
US6246331B1 (en) | 1999-01-05 | 2001-06-12 | Agf Manufacturing, Inc. | Apparatus for sensing fluid flow and associated load control circuit |
US6396404B1 (en) | 1999-01-05 | 2002-05-28 | Agf Manufacturing, Inc. | Double check valve assembly for fire suppression system |
US20060131036A1 (en) * | 2000-05-17 | 2006-06-22 | The Viking Corporation, A Corporation Of The State Of Michigan | Compact pendant sprinkler head |
US20070034388A1 (en) * | 2005-08-10 | 2007-02-15 | Candito Fabio B | Nozzle for extinguishing devices and the like |
US20150136432A1 (en) * | 2013-11-19 | 2015-05-21 | Protector Safety Ind., Ltd. | Fire sprinkler with improved protective shell |
US20150283414A1 (en) * | 2013-11-19 | 2015-10-08 | Protector Safety Ind., Ltd. | Concealed sprinkler head cover adjusting device |
US11918838B2 (en) * | 2019-10-08 | 2024-03-05 | Kidde Technologies, Inc. | Fire suppressant system for aircraft cargo container |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5234208A (en) * | 1975-09-05 | 1977-03-16 | Kunihiko Murai | Seeding method |
JPS5255298A (en) * | 1975-10-31 | 1977-05-06 | Matsushita Electric Works Ltd | Sprinkler head |
JP4577646B2 (en) * | 2004-04-09 | 2010-11-10 | Toto株式会社 | Sprinkler equipment |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2211399A (en) * | 1939-03-02 | 1940-08-13 | Seth L Winslow | Sprinkler head |
US2389331A (en) * | 1944-07-12 | 1945-11-20 | Tyden Emil | Sprinkler head |
US3633676A (en) * | 1970-04-01 | 1972-01-11 | Star Sprinkler Corp Of Florida | Flush-type sprinkler |
-
1972
- 1972-04-05 US US00241212A patent/US3756321A/en not_active Expired - Lifetime
-
1973
- 1973-03-19 CA CA166,977A patent/CA944253A/en not_active Expired
- 1973-04-04 JP JP3789073A patent/JPS5414438B2/ja not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2211399A (en) * | 1939-03-02 | 1940-08-13 | Seth L Winslow | Sprinkler head |
US2389331A (en) * | 1944-07-12 | 1945-11-20 | Tyden Emil | Sprinkler head |
US3633676A (en) * | 1970-04-01 | 1972-01-11 | Star Sprinkler Corp Of Florida | Flush-type sprinkler |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4015665A (en) * | 1975-08-07 | 1977-04-05 | Grunau Company, Inc. | Concealed sprinkler head |
EP0136650A2 (en) * | 1983-09-27 | 1985-04-10 | Wormald International Limited | Sprinkler head housing |
EP0136650A3 (en) * | 1983-09-27 | 1986-01-08 | Wormald International Limited | Sprinkler head housing |
US4646846A (en) * | 1983-09-27 | 1987-03-03 | Wormald International Ltd. | Sprinkler head housing |
US4618002A (en) * | 1984-03-13 | 1986-10-21 | Grinnel Corporation | Fire protection sprinkler head |
US4926946A (en) * | 1988-11-08 | 1990-05-22 | Central Sprinkler Corporation | Pendent style sprinkler with cover |
US4976320A (en) * | 1989-05-25 | 1990-12-11 | Central Sprinkler Corporation | Concealed sprinkler with drop down deflector assembly, and improved fusible valve lever assembly |
US5080176A (en) * | 1989-05-25 | 1992-01-14 | Central Sprinkler Corporation | Directly mounted pendent-style sprinklers and covers |
US5083616A (en) * | 1989-05-25 | 1992-01-28 | Central Sprinkler Corporation | Ceiling sprinkler |
US5505383A (en) * | 1994-11-02 | 1996-04-09 | Grinnell Corporation | Fire protection nozzle |
WO1996014161A1 (en) * | 1994-11-02 | 1996-05-17 | Grinnell Corporation | Fire protection nozzle |
US6114823A (en) * | 1997-12-30 | 2000-09-05 | Agf Manufacturing, Inc. | Circuit and apparatus for sensing fluid flow |
US6246331B1 (en) | 1999-01-05 | 2001-06-12 | Agf Manufacturing, Inc. | Apparatus for sensing fluid flow and associated load control circuit |
US6246333B1 (en) | 1999-01-05 | 2001-06-12 | Agf Manufacturing, Inc. | Apparatus for sensing fluid flow and associated load control circuit |
US6396404B1 (en) | 1999-01-05 | 2002-05-28 | Agf Manufacturing, Inc. | Double check valve assembly for fire suppression system |
US20060131036A1 (en) * | 2000-05-17 | 2006-06-22 | The Viking Corporation, A Corporation Of The State Of Michigan | Compact pendant sprinkler head |
US8087467B2 (en) | 2000-05-17 | 2012-01-03 | The Viking Corporation | Compact pendant sprinkler head |
US20070034388A1 (en) * | 2005-08-10 | 2007-02-15 | Candito Fabio B | Nozzle for extinguishing devices and the like |
US8028757B2 (en) * | 2005-08-10 | 2011-10-04 | Firet Italia S.R.L. | Nozzle for extinguishing devices and the like |
US20150136432A1 (en) * | 2013-11-19 | 2015-05-21 | Protector Safety Ind., Ltd. | Fire sprinkler with improved protective shell |
US20150283414A1 (en) * | 2013-11-19 | 2015-10-08 | Protector Safety Ind., Ltd. | Concealed sprinkler head cover adjusting device |
US9821182B2 (en) * | 2013-11-19 | 2017-11-21 | Protector Safety Ind., Ltd. | Concealed sprinkler head cover adjusting device |
US9895563B2 (en) * | 2013-11-19 | 2018-02-20 | Protector Safety Ind., Ltd. | Fire sprinkler with improved protective shell |
US11918838B2 (en) * | 2019-10-08 | 2024-03-05 | Kidde Technologies, Inc. | Fire suppressant system for aircraft cargo container |
Also Published As
Publication number | Publication date |
---|---|
CA944253A (en) | 1974-03-26 |
JPS4916289A (en) | 1974-02-13 |
JPS5414438B2 (en) | 1979-06-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3756321A (en) | Flush type sprinkler | |
US3714989A (en) | Flush type sprinkler | |
US3633676A (en) | Flush-type sprinkler | |
US6394122B1 (en) | Shock actuated sensor for fluid valve | |
US6502599B1 (en) | Shock actuated responsive mechanism for vertical fluid valve assemblies | |
US6527004B1 (en) | Shock actuated responsive mechanism for vertical fluid valve assemblies | |
US3584689A (en) | Dry-type sprinkler | |
US3007528A (en) | Dry pendant sprinklers | |
US4880063A (en) | Adjustable concealed sprinkler | |
US3811511A (en) | Fire extinguishing systems | |
EP0306500B1 (en) | A decorative quick response sprinkler | |
EP2029240B1 (en) | Dry pipe/deluge valve for automatic sprinkler systems | |
US3874455A (en) | Automatic sprinkler valve | |
US3638733A (en) | Heat operated fire extinguisher | |
US3759331A (en) | Fire protection system utilizing dry pipes normally maintained in a vacuum | |
US4465141A (en) | Fire sprinkler apparatus | |
US4139062A (en) | Telescopic automatic fire extinguisher | |
US2534378A (en) | Safety control for shower heads and other hot-water outlets | |
US3874456A (en) | Sprinkler | |
US5154201A (en) | Method of manufacturing a sealed vessel having a safety valve | |
GB2288331A (en) | Fire extinguishing sprinkler | |
US3916930A (en) | Thermal shut-off valve | |
JPS5922493B2 (en) | Drinking water gutter equipment for poultry or livestock | |
US4335734A (en) | Float warning device | |
US4785888A (en) | Decorative quick response sprinkler |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CHEMETRON FIRE SYSTEMS, INC., ROUTE 50 & GOVERNORS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHEMETRON CORPORATION, A DE CORP.;REEL/FRAME:004050/0810 Effective date: 19820928 |
|
AS | Assignment |
Owner name: GRUNAU SPRINKLER MANUFACTURING COMPANY, INC., 2205 Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHEMETRON FIRE SYSTEMS, INC.;REEL/FRAME:004193/0329 Effective date: 19831109 |
|
AS | Assignment |
Owner name: STAR SPRINKLER CORPORATION, WISCONSIN Free format text: CHANGE OF NAME;ASSIGNOR:GRUNAU SPRINKLER MANUFACTURING COMPANY, INC.;REEL/FRAME:008013/0405 Effective date: 19810319 Owner name: GRINNELL CORPORATION, RHODE ISLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STAR SPRINKLER CORPORATION;REEL/FRAME:008048/0099 Effective date: 19960411 |