EP1118355A1 - Dispositif et procédé de suppression d'incendie - Google Patents

Dispositif et procédé de suppression d'incendie Download PDF

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Publication number
EP1118355A1
EP1118355A1 EP00106256A EP00106256A EP1118355A1 EP 1118355 A1 EP1118355 A1 EP 1118355A1 EP 00106256 A EP00106256 A EP 00106256A EP 00106256 A EP00106256 A EP 00106256A EP 1118355 A1 EP1118355 A1 EP 1118355A1
Authority
EP
European Patent Office
Prior art keywords
sprinkler head
nipple
retention
ceiling tile
clip
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.)
Withdrawn
Application number
EP00106256A
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German (de)
English (en)
Inventor
Alan P. Kretschmer
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.)
Individual
Original Assignee
Individual
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
Priority claimed from US09/485,000 external-priority patent/US6158519A/en
Application filed by Individual filed Critical Individual
Publication of EP1118355A1 publication Critical patent/EP1118355A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems

Definitions

  • This invention relates generally to devices and methods which may be used for the suppression of fires, including fire suppression systems which utilize a plurality of sprinkler heads mounted within a suspended ceiling assembly. More particularly, this invention relates to a method for installing sprinkler heads in a "center of tile” array such that the exact "center of tile” installation is accomplished regardless of the location of the supply or feeder lines in relation to the sprinkler heads which are attached to those lines. It also relates to an apparatus or assembly for effecting the exact "center of tile” location and installation of those sprinkler heads in a wide variety of suspended ceiling assemblies and sprinkler head styles. It also relates to a clip-like device which is used to quickly and removably fasten a metal flange of the apparatus to the T-bars of a suspended ceiling assembly. It also relates to a special pipe connector or adapter nipple which is utilized within a fire suppression system to facilitate the secure and water tight connection of a flexible connecting hose to the fire suppression system.
  • the modem day suspended ceiling assembly typically consists of an array of standard 2' by 2' acoustically dampening ceiling tiles. Occasionally, the ceiling tiles are configured in a 2' by 4' tile array. Such tiles, of either the 2' by 2' or the 2' by 4' configuration, may be further constructed to give the appearance of even smaller tile configurations. That is, the 2' by 2' tiles may be sculpted to appear as though much smaller, e.g. 1' by 1' or even 6" by 6" or 3" by 3", tiles are being used.
  • the present invention has obtained these objects. It provides for a fire suppression apparatus which has a sprinkler head support bracket which is installable immediately above a ceiling tile.
  • the support bracket is configured with a plurality of openings such that multiple locations for the sprinkler head may be used and the exact "center of tile" installation of the sprinkler head can be accomplished with a wide variety of suspended ceiling assemblies and sprinkler heads.
  • the support bracket rests on the grid support members of the ceiling tile assembly and arches over the ceiling tile.
  • a pipe clamp is provided which is insertable within the bracket to retain a drop nipple within it. The drop nipple is adjustable relative to the horizontal to move it upwardly or downwardly relative to the ceiling tile.
  • the drop nipple is attached to a flexible armover connector which allows for an almost infinite number of locations that can be used to connect the drop nipple to the supply line of the fire suppression system.
  • the present invention also provides for a spring-like retention clip, the major portion of which is formed, in the preferred embodiment, from a single piece of metallic material.
  • the retention clip has a central saddle-like portion from which extend two opposing and functionally cooperating clip legs.
  • the clip legs also include leg extension members which are functionally adapted to extend through an opening in a support bracket located above a ceiling tile T-bar.
  • Each leg extension member includes, at the lowermost portion thereof, a hook portion.
  • the hook portion of each leg extension member functionally cooperates with the other to firmly and releasably grasp an annular or flat flange found at the uppermost portion of the T-bar. In this fashion, the retention clip is used to affix the support bracket, as described above, to the grid support members of the ceiling tile assembly.
  • the present invention also provides for an adapter nipple which is formed, in the preferred embodiment, from a single piece of black steel material.
  • the adapter nipple has a central tubular portion to either end of which extends an opposing external threaded end portion. Inwardly of one end portion is an internal chamfer. This chamfer is functionally adapted to engage a male member of the flexible armover connector, which male member has a mating external chamfer and a female threaded nut.
  • FIG. 1 is a perspective view looking downwardly on the grid of a typical suspended ceiling array and showing a fire suppression device constructed in accordance with the present invention and incorporated therewith.
  • FIG. 2 is an enlarged and partially cross-sectioned left side elevational and exploded view of the fire suppression device shown in FIG. 1.
  • FIG. 3 is an enlarged front and right side perspective view of the fire suppression device shown in FIG. 1.
  • FIG. 4 is a top plan view of the device shown in FIG. 3.
  • FIG. 5 is a right side elevational view of the fire suppression device shown in FIG. 3.
  • FIG. 6 is a top plan view of the fire suppression device looking downwardly on a 2' by 2' ceiling tile grid and showing various locations for the device atop the grid.
  • FIG. 7 is a top plan view of the fire suppression device shown in FIG. 6 and showing multiple possible locations for the device in 2' by 4', 2' by 2', 1' by 1', 6" by 6" and 3" by 3" ceiling tile configurations.
  • FIG. 8 is a front elevational view of a retention clip constructed in accordance with the present invention and shown in its normally closed position.
  • FIG. 9 is a left side elevational view of the clip shown in FIG. 8.
  • FIG. 10 is a front elevational view of the clip shown in FIGS. 8 and 9 and showing, in phantom view, the clip in its opened position.
  • FIG. 11 is a front elevational view of the clip shown in FIGS. 8 - 10 and showing the lowermost portions of the clip in grasping relation to the uppermost portion of the T-bar of a ceiling tile grid.
  • FIG. 12 is a side cross-sectional view of an adapter nipple constructed in accordance with the present invention as used with a flexible connecting hose.
  • FIG. 13 is an enlarged side cross-sectional view of the adapter nipple shown in FIG. 12.
  • FIG. 14 is a front elevational view of the adapter nipple shown in FIG. 13.
  • FIG. 1 shows a fire suppression device constructed in accordance with the present invention.
  • the preferred embodiment of the device includes a fire suppression assembly, generally identified 10, which includes a main support bracket 1.
  • the main support bracket 1 of the assembly 10 effectively straddles or arches over a ceiling panel 35 contained within a suspended ceiling grid 30.
  • the main support bracket 1 is constructed of a single piece of sheet metal material. In the experience of this inventor, a 16 gauge hot rolled sheet metal is adequate for this construction.
  • the main support bracket 1 rests upon and is supported by the cross-wise and intersecting tile support T-bars 31 of the ceiling grid 30. These tile support T-bars 31 really form the main support of the suspended ceiling array and are supported by a plurality of grid suspension wires 32.
  • Situated immediately above the ceiling grid 30 is a main water supply line 41.
  • the main water supply line 41 feeds a plurality of branch lines 42. It is primarily the branch lines 42 which are connected to the sprinkler heads 40 of the assembly 10. See FIG. 2.
  • connection between the branch lines 42 and the sprinkler heads 40 of the fire suppression system has heretofore been a "hard piped” connection. That is, the branch line 42 is connected to a short riser nipple pipe which is connected to an armover pipe, which is connected to a drop-down feeder pipe or drop nipple (not shown) which is connected to the sprinkler head 40.
  • the pipes which are required to be disconnected, relocated, possibly re-cut, and then reattached when the exact "center of tile" installation has not been achieved upon initial installation.
  • the fire suppression assembly 10 of the present invention includes a flexible armover generally identified 20, the qualities and features of which will be described in greater detail further in this detailed description.
  • the fire suppression assembly 10 also includes, starting from the bottom of the assembly (see FIG. 2) and working upwardly, a concentric reducing coupling 12, a drop nipple 15, a depth setting pipe clamp 25, and a 90° elbow 11.
  • the concentric reducing coupling 12 essentially allows connection of the sprinkler head 40 to the bottom of the drop nipple 15.
  • the drop nipple 15 is also threaded at its uppermost portion 16 such that it can also be attached to the 90 ° elbow 11.
  • the drop nipple 15 is functionally adapted to be slidably received by the depth setting pipe clamp 25.
  • the drop nipple 15 also includes pipe markings 19, the function of which will also be discussed later in this detailed description.
  • the precise location of the drop nipple 15 within the depth setting pipe clamp 25 can be fixed by virtue of a set screw 50 which is located within the hexagonal top portion 26 of the depth setting pipe clamp 25.
  • a shoulder and flange portion 27 are functionally adapted to rest upon and be supported by the top surface of the central portion 5 of the main support bracket 1.
  • the shoulder portion is received by any one of the holes 2a, 2b, 2c, 2d defined within the top portion 5 of the main support bracket 1.
  • Extending below the shoulder portion 27 of the depth setting pipe clamp 25 is a threaded bottom portion 28.
  • the threaded bottom portion 28 is functionally adapted to extend through any one of the holes 2a, 2b, 2c, 2d defined within the top portion 5 of the main support bracket 1.
  • the threaded bottom portion 28 allows the depth setting pipe clamp 25 to be removably secured to the main support bracket 1 by virtue of a lock nut 24.
  • the drop nipple 15 has a series of depth-setting markings 19 defined along one side of the nipple 15 such that the location of the sprinkler head 40 can be precisely located relative to the horizontal.
  • this feature allows the user to pre-set the depth of the drop nipple 15 within the pipe clamp 25 while allowing for different elevations of the ceiling tile 35 and various styles of sprinkler heads. See FIG. 5.
  • the top or upper end 16 of the drop nipple 15 is attachable to a 90° elbow 11.
  • the 90° elbow 11 is attachable to the second end 23 of a flexible armover 20.
  • the other or the female swivel end, generally identified 22, of the armover 20 is attachable via the use of an adapter nipple, generally identified 90, to a branch line pipe 42 situated above the ceiling tile grid 30. See FIG. 12. The details of this attachment will be explained later in this detailed description.
  • the flexible armover 20 may be constructed of a number of commercially available flexible hoses including, but not limited to, metal, teflon, rubber, plastic or any combination of these materials.
  • the important feature of the preferred embodiment is that the armover 20 be flexible and readily locatable relative to the main support bracket 1 without the need to disable the fire suppression system or alter any of its components.
  • the main support bracket 1 is held in place by virtue of a plurality of hold down clips, generally identified 50, which are functionally adapted to protrude through slots 9 which are defined in the outwardly extending support members 7 of the bracket 1.
  • These hold down clips 50 are removably attachable to the uppermost portion 37 of the ceiling tile support T-bar 31. See FIG. 11.
  • FIG. 8 shows, in greater detail, a retention clip 50 constructed in accordance with the present invention.
  • the retention clip 50 includes a central saddle-like portion 59. Extending downwardly from the sides of the central portion 59 of the clip 50 is a pair of clip legs 52, 53. The central portion 59 and the clip legs 52, 53 are functionally adapted to be constructed from a single piece of spring-like metallic material.
  • each leg 52, 53 is a leg extension member 62, 63, respectively, and a pair of curled retention members 56, 57, respectively.
  • the curled retention members 56, 57 are functionally adapted to receive the lowermost portions 82 of a pair of clip handles 81.
  • the clip handles 81 are the means by which the clip legs 52, 53 may be urged apart by the user. See FIG. 10. This function will be more apparent later in this detailed description.
  • the lowermost portion of the leg extension members 62, 63 include a pair of complimentary hook members 72, 73, respectively.
  • the hook members 72, 73 are functionally adapted to effectively "hook" the uppermost flange portion 37 of a ceiling grid T-bar 31. See FIG. 11.
  • the location of the main support bracket 1 atop a typical 2' by 2' ceiling tile array 30 is shown in FIG. 6. As shown, at least six different locations for the bracket 1 can be achieved with a connection to a single branch line 42. Referring now to FIG. 7, it will be observed that at least fifteen (15) different locations for the bracket can be achieved within a single 2' by 2' ceiling tile 35 with a connection to a single branch line 42 and at least thirty-one (31) different bracket locations can be achieved within a single 2' by 4' ceiling tile 35.
  • FIG. 12 shows an adapter nipple, generally identified 90, constructed in accordance with the present invention.
  • the adapter nipple 90 is functionally adapted to be engaged by the flexible hose 20.
  • the adapter nipple 90 includes an annular pipe 91.
  • the pipe 91 has a longitudinal center line, a first pipe end 93 and second pipe end 94.
  • the first pipe end 93 includes an untapered externally threaded portion 113.
  • the second pipe end 94 also includes an externally threaded portion 114, but this pipe end 94 is tapered by 1°.
  • the first pipe end 93 includes an internal chamfer 95 which, in the preferred embodiment, is cut at a 30° angle relative to the longitudinal center line of the adapter nipple 90.
  • the second pipe end 94 does not include a chamfer at that end.
  • the chamfer 95 of the first pipe end 93 is functionally adapted to engage a like mating internal chamfer 126 at the female swivel end 22 of the flexible hose 20.
  • the flexible hose 20 includes a corrugated stainless steel hose 21 with stainless steel braiding.
  • the flexible steel hose 21 is retained within a fitting collar 123 by means of a continuous weld 122.
  • the fitting collar 123 is reduced down to a fitting neck 124 from which extends the male end 125.
  • a female nut 115 Surrounding the male end 125 of the flexible hose 20 is a female nut 115 which includes an internal threaded portion 116 which is engageable with the external threaded portion 113 of the first pipe end 93.
  • the adapter nipple is more particularly described as a 0'-3" long sch.40 (ASTM A53) black steel pipe nipple (NPT XNPT) with internal chamfer at one end 30° from longitudinal center line of pipe.
  • the user of the method and apparatus of the present invention locates that portion of the ceiling grid 30 at which the "center of tile" installation is to be accomplished. It is contemplated by the inventor that the individual components of the assembly 10 reach the installer in a preassembled condition, with the exception of the main support bracket 1 and the hold down clips 50.
  • the installer knowing the type of ceiling tile 35 which is to be installed and also knowing the type of sprinkler head which is to be installed, sets the drop nipple 15 depth relative to the pipe clamp 25 by utilizing the pre-printed markings 19 on the drop nipple 15.
  • the pipe clamp 25 is then secured within one of the holes 2a, 2b, 2c, 2d of the support bracket 1 and the assembly 10, including the bracket 1, is connected to the branch line 42.
  • the entire assembly 1 is then secured and held in place above the grid 30 by use of a nylon strap (not shown). In this fashion, the assembly 10 is out of the way and ready for hydrostatic testing.
  • the ceiling tile installer comes in to install the ceiling tiles 35 which is followed by the fire suppression system installer coming back to set the brackets 1 on top of those ceiling tiles 35 which are to receive the sprinkler heads 40 according to design.
  • the bracket 1 relies upon a plurality of outwardly extending support members 7 and upon a plurality of downwardly extending support members 8, both sets of which extend from the legs 6 of the main support bracket 1, to support it. See FIG. 2.
  • two or four hold down clips 50 are then installed which protrude through slots 9 in four of the outwardly extending support members 7 of the main support bracket 1 (see FIGS. 2 and 5) and attach to the ceiling tile support T-bars 31.
  • the bracket 7, or at least that portion of the bracket 7 which overlays the T-bar 31, includes an aperture 9. It is this aperture 9 which provides access to the T-bar flange 37 for the user.
  • the user then inserts the leg extension members 62, 63 of the clip 50 through the bracket aperture 9 and urges the clip handles 81 towards one another. In this fashion, the leg extension members 62, 63 are urged away from each other to the point that the hook portions 72, 73, respectively, thereof can fit over the flange 37.
  • the number of hold down clips 50 is determined by the type of sprinkler head 40 used and the maximum system pressure provided. Twisting of the flexible armover 20 is avoided and the bracket 1 remains in place.
  • the ceiling tile pattern provided, e.g. 24" x 48"; 24" x 24"; 12" x 12"; 6" x 6"; 3" x 3", determines which of the plurality of holes 2a, 2b, 2c, 2d defined within the top portion 5 of the main support bracket 1 will be used for locating the depth setting pipe clamp 25 therewithin. That is, the user will have a plurality of holes 2a, 2b, 2c, 2d from which to select when locating the pipe clamp 25 within the top portion 5 of the main support bracket 1. This feature is also one which allows for accurate pre-setting of the pipe clamp 25 within the bracket 1 when the installer knows which ceiling tile configuration is used. Rotation of the bracket 1 by 180° allows for a wide variety of hole selections within the bracket 1 to accomplish this.

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  • 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)
EP00106256A 2000-01-18 2000-03-22 Dispositif et procédé de suppression d'incendie Withdrawn EP1118355A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US09/485,000 US6158519A (en) 2000-01-18 2000-01-18 Fire suppression method and apparatus
US485000P 2000-01-18
US50030800A 2000-02-08 2000-02-08
US500308P 2000-02-08
US52300700A 2000-03-10 2000-03-10
US523007P 2000-03-10

Publications (1)

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EP1118355A1 true EP1118355A1 (fr) 2001-07-25

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ID=27413704

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EP00106256A Withdrawn EP1118355A1 (fr) 2000-01-18 2000-03-22 Dispositif et procédé de suppression d'incendie

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EP (1) EP1118355A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2864906A1 (fr) * 2004-01-09 2005-07-15 Dimce Ancevski Ensemble et dispositif de protection d'une tete d'aspersion pour la lutte contre l'incendie
WO2009099956A1 (fr) * 2008-02-05 2009-08-13 Ansul, Incorporated Conduite d'alimentation de tuyau flexible pour un système d'extinction de feu d'un appareil
US20130105641A1 (en) * 2011-11-02 2013-05-02 The Viking Corporation Fire Protection Sprinkler Support System
US20130105640A1 (en) * 2011-11-02 2013-05-02 The Viking Corporation Fire Protection Sprinkler Support System
WO2018009633A1 (fr) * 2016-07-07 2018-01-11 Bull Moose Tube Company Structures métalliques revêtues d'acier et leurs procédés de fabrication
US20200261757A1 (en) * 2019-02-20 2020-08-20 Terry Gene Creekmore Fire Suppression Coupling Access Hatch
WO2021059232A3 (fr) * 2019-09-27 2021-05-06 Tyco Fire Products Lp Systèmes et procédés de raccords inclinés pour plafonds inclinés

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2017841A (en) * 1932-06-20 1935-10-22 Gen Fire Extinguisher Co Domestic sprinkler system
DE3919638C1 (en) * 1989-06-16 1990-11-29 Witzenmann Gmbh, Metallschlauch-Fabrik Pforzheim, 7530 Pforzheim, De Fire protection sprinkler system - has nozzles connected to main water line by flexible hoses
EP0454062A1 (fr) * 1990-04-23 1991-10-30 Takamasa Hattori Dispositif de tuyaux montés avec des buses de pulvérisation et procédé d' installation des tuyaux pour le montage de buses de pulvérisation
US5533236A (en) * 1995-08-08 1996-07-09 Chun-Hsiung Hsu Paper holder
JPH08206249A (ja) * 1995-02-07 1996-08-13 Matsushita Electric Works Ltd スプリンクラー用可とう管
JPH08257160A (ja) * 1995-03-24 1996-10-08 Shimizu Corp 配管の固定構造
US5570745A (en) * 1995-05-31 1996-11-05 Pnm, Inc. Relocatable sprinkler assemblage
JPH0994306A (ja) * 1995-09-29 1997-04-08 Bosai Kikaku:Kk 消火スプリンクラー配管

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2017841A (en) * 1932-06-20 1935-10-22 Gen Fire Extinguisher Co Domestic sprinkler system
DE3919638C1 (en) * 1989-06-16 1990-11-29 Witzenmann Gmbh, Metallschlauch-Fabrik Pforzheim, 7530 Pforzheim, De Fire protection sprinkler system - has nozzles connected to main water line by flexible hoses
EP0454062A1 (fr) * 1990-04-23 1991-10-30 Takamasa Hattori Dispositif de tuyaux montés avec des buses de pulvérisation et procédé d' installation des tuyaux pour le montage de buses de pulvérisation
JPH08206249A (ja) * 1995-02-07 1996-08-13 Matsushita Electric Works Ltd スプリンクラー用可とう管
JPH08257160A (ja) * 1995-03-24 1996-10-08 Shimizu Corp 配管の固定構造
US5570745A (en) * 1995-05-31 1996-11-05 Pnm, Inc. Relocatable sprinkler assemblage
US5533236A (en) * 1995-08-08 1996-07-09 Chun-Hsiung Hsu Paper holder
JPH0994306A (ja) * 1995-09-29 1997-04-08 Bosai Kikaku:Kk 消火スプリンクラー配管

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"OUR NEW CENTER-OF-TILE IS MAKING US THE CENTER OF ATTENTION", FLEXHEAD INDUSTRIES BROCHURE, XX, XX, 1 January 1986 (1986-01-01), XX, pages 01, XP002928620 *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 12 26 December 1996 (1996-12-26) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 02 28 February 1997 (1997-02-28) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 08 29 August 1997 (1997-08-29) *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2864906A1 (fr) * 2004-01-09 2005-07-15 Dimce Ancevski Ensemble et dispositif de protection d'une tete d'aspersion pour la lutte contre l'incendie
WO2009099956A1 (fr) * 2008-02-05 2009-08-13 Ansul, Incorporated Conduite d'alimentation de tuyau flexible pour un système d'extinction de feu d'un appareil
US20130105641A1 (en) * 2011-11-02 2013-05-02 The Viking Corporation Fire Protection Sprinkler Support System
US20130105640A1 (en) * 2011-11-02 2013-05-02 The Viking Corporation Fire Protection Sprinkler Support System
EP2589416A3 (fr) * 2011-11-02 2015-01-28 The Viking Corporation Système de support d'extincteur anti-feu
US9004421B2 (en) * 2011-11-02 2015-04-14 The Viking Corporation Fire protection sprinkler support system
US9004422B2 (en) * 2011-11-02 2015-04-14 The Viking Corporation Fire protection sprinkler support system
EP3366358A1 (fr) * 2011-11-02 2018-08-29 The Viking Corporation Système de support de sprinkler anti-incendie
WO2018009633A1 (fr) * 2016-07-07 2018-01-11 Bull Moose Tube Company Structures métalliques revêtues d'acier et leurs procédés de fabrication
US10765898B2 (en) 2016-07-07 2020-09-08 Bull Moose Tube Company Steel coated metal structures and methods of fabricating the same
US20200261757A1 (en) * 2019-02-20 2020-08-20 Terry Gene Creekmore Fire Suppression Coupling Access Hatch
WO2021059232A3 (fr) * 2019-09-27 2021-05-06 Tyco Fire Products Lp Systèmes et procédés de raccords inclinés pour plafonds inclinés

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