US3768736A - Cooling tower sprinkler nozzle - Google Patents

Cooling tower sprinkler nozzle Download PDF

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Publication number
US3768736A
US3768736A US00240600A US3768736DA US3768736A US 3768736 A US3768736 A US 3768736A US 00240600 A US00240600 A US 00240600A US 3768736D A US3768736D A US 3768736DA US 3768736 A US3768736 A US 3768736A
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United States
Prior art keywords
nozzle
splitter
discharge
sprinkler nozzle
stream
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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
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US00240600A
Inventor
L Cox
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Scott Technologies Inc
American La France Inc
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American La France Inc
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Publication of US3768736A publication Critical patent/US3768736A/en
Assigned to FIGGIE INTERNATIONAL INC. reassignment FIGGIE INTERNATIONAL INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE JUNE 1, 1981. Assignors: A-T-O INC.
Assigned to FIGGIE INTERNATIONAL INC. reassignment FIGGIE INTERNATIONAL INC. MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE: DECEMBER 31, 1986 Assignors: FIGGIE INTERNATIONAL INC., (MERGED INTO) FIGGIE INTERNATIONAL HOLDINGS INC. (CHANGED TO)
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00—Component parts of trickle coolers
    • F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
    • F28F25/06—Spray nozzles or spray pipes
    • 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
    • A62C37/10—Releasing means, e.g. electrically released
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/265—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle

Definitions

  • ABSTRACT sprinkler nozzle adapted to discharge paratively narrow and relatively long ath is disclosed in which a pair of arcuate splitter eleositioned in spaced relation to the disrge orifice of the nozzle to create oppositely disosed divergent streams which conform generally with m e0 c m p m m m S on m c a a AwPmcD.
  • Prior structures of this type have employed water discharge nozzles capable of directing a stream of water on a substantial horizontal path and for example between the respective horizontal sections of a water cooling tower. See for example U.S. Pat. No. 3,208,534 in which a nozzle with an angularly disposed discharge bore is provided with a single off center splitter element relative to the stream discharged thereby.
  • This invention eliminates the problems inherent in installing and orienting the nozzles of the prior art in order to obtain a satisfactory discharge pattern in an elongated area of relative low height such as found in cooling tower constructions.
  • a cooling tower sprinkler nozzle comprises a nozzle body having a flow passageway therethrough and a pair of arcuate splitter elements positioned in spaced relation to the orifice of the flow passageway and arranged to split off relatively smaller portions of a stream of fluid directed therebetween.
  • the cooling tower sprinkler nozzle locates the pair of arcuate splitter elements in spaced relation to one another and in oppositely disposed relation to the center line of an extension of the flow passageway in the sprinkler nozzle.
  • the splitter elements are part of a cylindrical pintle carried on the arms of the sprinkler frame which extends from the opposite sides of the sprinkler nozzle body.
  • FIG. 1 is a side elevation of the cooling tower sprinkler nozzle.
  • FIG. 2 is a vertical section on line 22 of FIG. 1.
  • FIG. 3 is a bottom elevation of the cooling tower sprinkler nozzle of FIG. 1 and FIG. 4 is a side elevation of the cooling tower sprinkler nozzle mounted on a fluid supply pipe and illustrating the manner of water distribution therefrom.
  • the cooling tower sprinkler nozzle comprises a nozzle body having an exterior thread pattern 11 thereon, the nozzle body 10 defining a flow passageway 12 longitudinally thereof.
  • the nozzle body 10 has an inlet orifice 13 at its lower end and a discharge orifice 14 at its upper end.
  • a pair of oppositely disposed arms 15 extend from the opposite sides of the nozzle body 10 in a semicircular pattern and are joined at their outermost ends by a pintle 16 the outer and inner surfaces of which are angularly disposed with respect to one another.
  • the pintle 16 is cylindrical with a secondary flow passageway 17 axially thereof and the areas of the pintle 16 extending between the upper ends of the arms 15 of the sprinkler nozzle define arcuate, tapered splitter elements 18.
  • FIG. 2 of the drawings in particular it will be seen that a broken line has been positioned on the axial center line of the flow passageway 12 and that it extends through the pintle 16 and between the arcuate splitter elements 18 and thereby on the axial center line of the spaced pair of splitter elements 18.
  • a column of fluid directed through the discharge orifice 14 of the nozzle will generally pass through the secondary flow passageway 17 formed by the spaced splitter elements 18.
  • the lower ends of the splitter elements 18 which are pointed toward the discharge orifice 14 are very narrow and the splitter elements 18 widen progressively upwardly therefrom.
  • FIG. 3 of the drawings a bottom elevation of the sprinkler nozzle may be seen and the arcuate configuration of the splitter elements 18 may be clearly seen.
  • the cooling tower sprinkler nozzle body 10 is shown threadably engaged in a fitting F on a fluid supply pipe P and a column of fluid is illustrated with its central portion C flowing through the pintle 16 between the arcuate splitter elements 18 and outwardly in a desired long, narrow discharge pattern.
  • a pair of split off discharge streams S will also be seen as occasioned by the conical splitter elements 18.
  • the discharge pattern illustrated is particularly suitable for directing fire extinguishing fluids between the several sections of a cooling tower and/or into any other relatively elongated limited height area where fire protection sprinklers are indicated.
  • the cooling tower sprinkler nozzle disclosed herein provides an efficient and novel construction in that it may be largely formed from a conventional sprinkler head by the modification of the flow passageway therethrough and the alteration of the pintle area thereof to form the secondary flow passageway 117 of the invention and the spaced arcuate splitter members which are particularly suitable for splitting off desired portions of a main fluid stream to provide a desirable and improved discharge pattern.
  • a particular advantage of the construction is its ability to shape the split off discharge patterns as illustrated at S in FIG. 4 of the drawings into spray patterns that are generally arcuate and thus conform desirably to the main cylindrical column of fluid directed from the nozzle.
  • a fire extinguishing sprinkler nozzle comprising a hollow nozzle body having a passageway therethrough with an inlet end and a discharge end, an attachment means at said inlet end thereof for connecting the nozzle body to a source of liquid and a discharge opening at the discharge end, a pair of diametrically opposed, arcuate, outwardly curved support arms integral with said body at one of their ends and terminating at their outer ends in a stream splitter comprising a pair of diametrically opposed splitter elements each having an outwardly tapered surface and each having a pointed edge toward the nozzle body and a relatively wide edge away from the nozzle body, said outwardly tapered surfaces curving outwardly and then inwardly from the pointed edge toward the wide edge, said stream splitter having a passageway therethrough in alignment with the discharge opening, the diameter of the discharge opening being substantially greater than the diameter of the passageway through the stream splitter so that a central portion of the liquid discharged from the discharge end of the body passes between the support arms and through the opening in the stream

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Nozzles (AREA)

Abstract

A cooling tower sprinkler nozzle adapted to discharge water over a comparatively narrow and relatively long path is disclosed in which a pair of arcuate splitter elements are positioned in spaced relation to the discharge orifice of the nozzle to create oppositely disposed divergent streams which conform generally with the discharge pattern of the sprinkler nozzle.

Description

Emits tates Patent [191 [54] COOLING TOWER SPRINKLER NOZZLE 2,375,528 5/1945 DeFlon 239/504 X X 4 2 5 9 3 2 d m a M 5 l 9 l 9 [75] Inventor: Lawrence J. Cox, Bedford Heights,
Ohio
239/504 X Maclnnes et al.
r m u a C 0 5 9 l l [73] Assignee: American LaFrance lnc.,
Willoughby, Ohio Primary Examiner-M. Henson Wood, .lr.
Assistant Examiner-John J Love Apr. 3, 1972 AttorneyWebster B. Harpman [22] Filed:
[21] Appl. No.: 240,600
[57] ABSTRACT sprinkler nozzle adapted to discharge paratively narrow and relatively long ath is disclosed in which a pair of arcuate splitter eleositioned in spaced relation to the disrge orifice of the nozzle to create oppositely disosed divergent streams which conform generally with m e0 c m p m m m S on m c a a AwPmcD. 76 7 32M3 WUS 6 56 08 ll wt 9 42 2 "W5, n 8 :1 w m n N15 C ""2 S "u" e "u" c n n n e n H Mmh H "W" R "3 e U bu C d 5mm UHF 1]] l. 2 00 6 555 5 [1:1 1
U T STATES PATENTS the diSChfll'gC pattern of thfi sprinkler 02216.
1,674,480 Nelson............................ 239/500 X 5 Claims, 4 Drawing Figures COOLING TOWER SPRINKLER NOZZLE BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to fire protection sprinkler systems and more particularly to a novel cooling tower sprinkler nozzle useful in controlling fires in cooling towers used with air conditioning refrigerating equipment.
2. Description of the Prior Art Prior structures of this type have employed water discharge nozzles capable of directing a stream of water on a substantial horizontal path and for example between the respective horizontal sections of a water cooling tower. See for example U.S. Pat. No. 3,208,534 in which a nozzle with an angularly disposed discharge bore is provided with a single off center splitter element relative to the stream discharged thereby.
Other constructions in the prior art include the nozzles of U.S. Pat. No. 517,411 which provides a splitter element adjustably mounted with respect to a discharge orifice and U.S. Pat. No. 1,288,123, 1,234,959, and 864,630 provide nozzles with fixed splitter elements. U.S. Pat. No. 1,862,396 discloses a nozzle with a conical splitter element.
This invention eliminates the problems inherent in installing and orienting the nozzles of the prior art in order to obtain a satisfactory discharge pattern in an elongated area of relative low height such as found in cooling tower constructions.
SUMMARY OF THE INVENTION A cooling tower sprinkler nozzle comprises a nozzle body having a flow passageway therethrough and a pair of arcuate splitter elements positioned in spaced relation to the orifice of the flow passageway and arranged to split off relatively smaller portions of a stream of fluid directed therebetween. The cooling tower sprinkler nozzle locates the pair of arcuate splitter elements in spaced relation to one another and in oppositely disposed relation to the center line of an extension of the flow passageway in the sprinkler nozzle. The splitter elements are part of a cylindrical pintle carried on the arms of the sprinkler frame which extends from the opposite sides of the sprinkler nozzle body.
DESCRIPTION OF THE DRAWINGS FIG. 1 is a side elevation of the cooling tower sprinkler nozzle.
FIG. 2 is a vertical section on line 22 of FIG. 1.
FIG. 3 is a bottom elevation of the cooling tower sprinkler nozzle of FIG. 1 and FIG. 4 is a side elevation of the cooling tower sprinkler nozzle mounted on a fluid supply pipe and illustrating the manner of water distribution therefrom.
DESCRIPTION OF THE PREFERRED EMBODIMENT In its simplest form the cooling tower sprinkler nozzle comprises a nozzle body having an exterior thread pattern 11 thereon, the nozzle body 10 defining a flow passageway 12 longitudinally thereof. As seen in FIGS. I and 2 of the drawings the nozzle body 10 has an inlet orifice 13 at its lower end and a discharge orifice 14 at its upper end. A pair of oppositely disposed arms 15 extend from the opposite sides of the nozzle body 10 in a semicircular pattern and are joined at their outermost ends by a pintle 16 the outer and inner surfaces of which are angularly disposed with respect to one another. The pintle 16 is cylindrical with a secondary flow passageway 17 axially thereof and the areas of the pintle 16 extending between the upper ends of the arms 15 of the sprinkler nozzle define arcuate, tapered splitter elements 18.
By referring to FIG. 2 of the drawings in particular it will be seen that a broken line has been positioned on the axial center line of the flow passageway 12 and that it extends through the pintle 16 and between the arcuate splitter elements 18 and thereby on the axial center line of the spaced pair of splitter elements 18. Thus a column of fluid directed through the discharge orifice 14 of the nozzle will generally pass through the secondary flow passageway 17 formed by the spaced splitter elements 18. The lower ends of the splitter elements 18 which are pointed toward the discharge orifice 14 are very narrow and the splitter elements 18 widen progressively upwardly therefrom.
It will thus be observed, by still referring to FIG. 2 of the drawings, that portions of a fluid stream emerging from the discharge orifice 114 will be split off by the pair of arcuate splitter elements 18 thus widening the discharge pattern of the sprinkler nozzle.
In FIG. 3 of the drawings, a bottom elevation of the sprinkler nozzle may be seen and the arcuate configuration of the splitter elements 18 may be clearly seen.
In FIG. 4 of the drawings, the cooling tower sprinkler nozzle body 10 is shown threadably engaged in a fitting F on a fluid supply pipe P and a column of fluid is illustrated with its central portion C flowing through the pintle 16 between the arcuate splitter elements 18 and outwardly in a desired long, narrow discharge pattern. A pair of split off discharge streams S will also be seen as occasioned by the conical splitter elements 18. The discharge pattern illustrated is particularly suitable for directing fire extinguishing fluids between the several sections of a cooling tower and/or into any other relatively elongated limited height area where fire protection sprinklers are indicated.
It will thus be seen that the cooling tower sprinkler nozzle disclosed herein provides an efficient and novel construction in that it may be largely formed from a conventional sprinkler head by the modification of the flow passageway therethrough and the alteration of the pintle area thereof to form the secondary flow passageway 117 of the invention and the spaced arcuate splitter members which are particularly suitable for splitting off desired portions of a main fluid stream to provide a desirable and improved discharge pattern. A particular advantage of the construction is its ability to shape the split off discharge patterns as illustrated at S in FIG. 4 of the drawings into spray patterns that are generally arcuate and thus conform desirably to the main cylindrical column of fluid directed from the nozzle.
Having thus described my invention, what I clam is:
1. A fire extinguishing sprinkler nozzle comprising a hollow nozzle body having a passageway therethrough with an inlet end and a discharge end, an attachment means at said inlet end thereof for connecting the nozzle body to a source of liquid and a discharge opening at the discharge end, a pair of diametrically opposed, arcuate, outwardly curved support arms integral with said body at one of their ends and terminating at their outer ends in a stream splitter comprising a pair of diametrically opposed splitter elements each having an outwardly tapered surface and each having a pointed edge toward the nozzle body and a relatively wide edge away from the nozzle body, said outwardly tapered surfaces curving outwardly and then inwardly from the pointed edge toward the wide edge, said stream splitter having a passageway therethrough in alignment with the discharge opening, the diameter of the discharge opening being substantially greater than the diameter of the passageway through the stream splitter so that a central portion of the liquid discharged from the discharge end of the body passes between the support arms and through the opening in the stream splitter, and the curved, outwardly tapered surfaces of the splitter elements diverting opposite portions of the liquid discharged from the discharge end of the body into separate, curved streams which conform substantially to the central portion.
2. The sprinkler nozzle of claim 1 and wherein the members splitter elements for splitting said stream of fluid are curved on their outer surfaces both circumferentially and longitudinally.
3. The sprinkler nozzle of claim 1 and wherein the nozzle body configuration adjacent its discharge end has converging walls reducing the diameter of the discharge opening with respect to the inlet of said nozzle body.
4. The sprinkler nozzle of claim 1 and wherein the inner cross sectional shape of said stream splitter is cylindrical.
5. The sprinkler nozzle of claim 1 and wherein the inner cross sectional shape of said stream splitter is cylindrical and the length thereof is greater than its diameter.

Claims (5)

1. A fire extinguishing sprinkler nozzle comprising a hollow nozzle body having a passageway therethrough with an inlet end and a discharge end, an attachment means at said inlet end thereof for connecting the nozzle body to a source of liquid and a discharge opening at the discharge end, a pair of diametrically opposed, arcuate, outwardly curved support arms integral with said body at one of their ends and terminating at their outer ends in a stream splitter comprising a pair of diametrically opposed splitter elements each having an outwardly tapered surface and each having a pointed edge toward the nozzle body and a relatively wide edge away from the nozzle body, said outwardly tapered surfaces curving outwardly and then inwardly from the pointed edge toward the wide edge, said stream splitter having a passageway therethrough in alignment with the discharge opening, the diameter of the dischArge opening being substantially greater than the diameter of the passageway through the stream splitter so that a central portion of the liquid discharged from the discharge end of the body passes between the support arms and through the opening in the stream splitter, and the curved, outwardly tapered surfaces of the splitter elements diverting opposite portions of the liquid discharged from the discharge end of the body into separate, curved streams which conform substantially to the central portion.
2. The sprinkler nozzle of claim 1 and wherein the members splitter elements for splitting said stream of fluid are curved on their outer surfaces both circumferentially and longitudinally.
3. The sprinkler nozzle of claim 1 and wherein the nozzle body configuration adjacent its discharge end has converging walls reducing the diameter of the discharge opening with respect to the inlet of said nozzle body.
4. The sprinkler nozzle of claim 1 and wherein the inner cross sectional shape of said stream splitter is cylindrical.
5. The sprinkler nozzle of claim 1 and wherein the inner cross sectional shape of said stream splitter is cylindrical and the length thereof is greater than its diameter.
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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3904126A (en) * 1973-10-11 1975-09-09 Itt Fire sprinkler
US4091873A (en) * 1977-02-17 1978-05-30 Werner Clements M Fire extinguishant dispensing nozzles
US4700893A (en) * 1986-07-25 1987-10-20 The Marley Cooling Tower Company Multipurpose non-clogging nozzle for water cooling towers
US5392993A (en) * 1994-01-21 1995-02-28 Grinnell Corporation, Fire protection nozzle
US5829532A (en) * 1997-03-07 1998-11-03 Central Sprinkler Corporation Low pressure, early suppression fast response sprinklers
US6059044A (en) * 1998-05-15 2000-05-09 Grinnell Corporation Fire protection sprinkler and deflector
US6336509B1 (en) 1997-03-07 2002-01-08 Central Sprinkler Corporation Low pressure fast response bulb sprinklers
US6854668B2 (en) 2002-04-29 2005-02-15 Victaulic Company Of America Extended coverage ordinary hazard sprinkler system
US20050224238A1 (en) * 1999-05-28 2005-10-13 The Viking Corporation, A Corporation Of The State Of Michigan Fast response sprinkler head and fire extinguishing system
US20060219818A1 (en) * 2005-04-01 2006-10-05 The Viking Corporation Sprinkler assembly
US20060219819A1 (en) * 2005-04-01 2006-10-05 The Viking Corporation Sprinkler assembly
US7165624B1 (en) 1998-05-15 2007-01-23 Grinnell Corporation Early suppression fast response fire protection sprinkler
US20070079971A1 (en) * 2002-03-27 2007-04-12 The Viking Corporation Sprinkler Head With Improved Flow
US20100276164A1 (en) * 2009-04-29 2010-11-04 The Viking Corporation Fire Protection Sprinkler
US8122969B1 (en) 2000-11-22 2012-02-28 Tyco Fire Products Lp Low pressure, extended coverage, 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
US8662190B2 (en) 2011-11-01 2014-03-04 The Viking Corporation Flow shaper for use in corridor sprinkler
US10426984B2 (en) 2014-04-16 2019-10-01 The Viking Corporation Sprinkler assembly
US10940347B2 (en) 2016-05-04 2021-03-09 The Viking Corporation Concealed horizontal sidewall sprinkler
US20210080036A1 (en) * 2017-07-28 2021-03-18 Anvil International, Llc Pre-assembled coupling assemblies with pipe fitting
US11344758B2 (en) 2019-04-10 2022-05-31 Minimax Viking Research & Development Gmbh Institutional sprinklers and installation assemblies
US11953124B2 (en) 2017-07-28 2024-04-09 ASC Engineered Solutions, LLC Pre-assembled coupling assembly with flexible hose adapter

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US1153805A (en) * 1914-04-30 1915-09-14 Karl Macdonald Spray-nozzle.
US1674480A (en) * 1927-09-10 1928-06-19 A M Lockett & Company Ltd Spray nozzle
US2375528A (en) * 1943-04-13 1945-05-08 Fluor Corp Spray nozzle
US2495208A (en) * 1945-05-17 1950-01-24 Factory Mutual Res Corp Fog producing spray nozzle
US3061204A (en) * 1961-03-30 1962-10-30 Fluor Corp Water spray nozzle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1153805A (en) * 1914-04-30 1915-09-14 Karl Macdonald Spray-nozzle.
US1674480A (en) * 1927-09-10 1928-06-19 A M Lockett & Company Ltd Spray nozzle
US2375528A (en) * 1943-04-13 1945-05-08 Fluor Corp Spray nozzle
US2495208A (en) * 1945-05-17 1950-01-24 Factory Mutual Res Corp Fog producing spray nozzle
US3061204A (en) * 1961-03-30 1962-10-30 Fluor Corp Water spray nozzle

Cited By (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3904126A (en) * 1973-10-11 1975-09-09 Itt Fire sprinkler
US4091873A (en) * 1977-02-17 1978-05-30 Werner Clements M Fire extinguishant dispensing nozzles
US4700893A (en) * 1986-07-25 1987-10-20 The Marley Cooling Tower Company Multipurpose non-clogging nozzle for water cooling towers
US5392993A (en) * 1994-01-21 1995-02-28 Grinnell Corporation, Fire protection nozzle
US5829532A (en) * 1997-03-07 1998-11-03 Central Sprinkler Corporation Low pressure, early suppression fast response sprinklers
US6868917B2 (en) 1997-03-07 2005-03-22 Central Sprinkler Company Low pressure, early suppression fast response sprinklers
US6336509B1 (en) 1997-03-07 2002-01-08 Central Sprinkler Corporation Low pressure fast response bulb sprinklers
US6502643B1 (en) 1997-03-07 2003-01-07 Central Sprinkler Company Low pressure, early suppression fast response sprinklers
US8485270B2 (en) 1998-05-15 2013-07-16 Tyco Fire Products Lp Early suppression fast response fire protection sprinkler
US20100032173A1 (en) * 1998-05-15 2010-02-11 Tyco Fire Products Lp Early suppression fast response fire protection sprinkler
US7735570B2 (en) 1998-05-15 2010-06-15 Tyco Fire Products Lp Early suppression fast response fire protection sprinkler
US7730959B2 (en) 1998-05-15 2010-06-08 Tyco Fire Products Lp Early suppression fast response fire protection sprinkler
US6059044A (en) * 1998-05-15 2000-05-09 Grinnell Corporation Fire protection sprinkler and deflector
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
US7165624B1 (en) 1998-05-15 2007-01-23 Grinnell Corporation Early suppression fast response fire protection sprinkler
US20100212919A1 (en) * 1998-05-15 2010-08-26 Tyco Fire Products Lp Early suppression fast response fire protection sprinkler
US20070114047A1 (en) * 1998-05-15 2007-05-24 Grinnell Corporation Early suppression fast response fire protection sprinkler
US20100071916A1 (en) * 1998-05-15 2010-03-25 Tyco Fire Products Lp Early suppression fast response fire protection sprinkler
US7766091B2 (en) 1998-05-15 2010-08-03 Tyco Fire Products Lp Early suppression fast response fire protection sprinkler
US7036603B2 (en) 1999-05-28 2006-05-02 The Viking Corporation Fast response sprinkler head and fire extinguishing system
US7290618B2 (en) 1999-05-28 2007-11-06 The Viking Corporation Fast response sprinkler head and fire extinguishing system
US20050224238A1 (en) * 1999-05-28 2005-10-13 The Viking Corporation, A Corporation Of The State Of Michigan Fast response sprinkler head and fire extinguishing system
US8925641B1 (en) 2000-11-22 2015-01-06 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
US8899341B1 (en) 2000-11-22 2014-12-02 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
US8122969B1 (en) 2000-11-22 2012-02-28 Tyco Fire Products Lp Low pressure, extended coverage, fire protection sprinkler
US20070079971A1 (en) * 2002-03-27 2007-04-12 The Viking Corporation Sprinkler Head With Improved Flow
US20050145394A1 (en) * 2002-04-29 2005-07-07 Wancho Thomas F. Extended coverage ordinary hazard sprinkler system
US6854668B2 (en) 2002-04-29 2005-02-15 Victaulic Company Of America Extended coverage ordinary hazard sprinkler system
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
US8528653B1 (en) 2002-07-19 2013-09-10 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
US8746356B1 (en) 2002-07-19 2014-06-10 Tyco Fire Products Lp Dry Sprinkler
US7614457B2 (en) * 2003-09-25 2009-11-10 The Viking Corporation Sprinkler head with improved flow
US7854269B2 (en) * 2005-04-01 2010-12-21 The Viking Corporation Sprinkler assembly
US8789615B2 (en) 2005-04-01 2014-07-29 The Viking Corporation Sprinkler assembly
US10406393B2 (en) 2005-04-01 2019-09-10 The Viking Corporation Sprinkler assembly
US20060219818A1 (en) * 2005-04-01 2006-10-05 The Viking Corporation Sprinkler assembly
US20060219819A1 (en) * 2005-04-01 2006-10-05 The Viking Corporation Sprinkler assembly
US8376061B2 (en) 2009-04-29 2013-02-19 The Viking Corporation Fire protection sprinkler
US20100276164A1 (en) * 2009-04-29 2010-11-04 The Viking Corporation Fire Protection Sprinkler
US8662190B2 (en) 2011-11-01 2014-03-04 The Viking Corporation Flow shaper for use in corridor sprinkler
US10426984B2 (en) 2014-04-16 2019-10-01 The Viking Corporation Sprinkler assembly
US10940347B2 (en) 2016-05-04 2021-03-09 The Viking Corporation Concealed horizontal sidewall sprinkler
US12090355B2 (en) 2016-05-04 2024-09-17 The Viking Corporation Concealed horizontal sidewall sprinkler
US20210080036A1 (en) * 2017-07-28 2021-03-18 Anvil International, Llc Pre-assembled coupling assemblies with pipe fitting
US11841097B2 (en) * 2017-07-28 2023-12-12 ASC Engineered Solutions, LLC Pre-assembled coupling assemblies with pipe fitting
US11953124B2 (en) 2017-07-28 2024-04-09 ASC Engineered Solutions, LLC Pre-assembled coupling assembly with flexible hose adapter
US11971120B2 (en) 2017-07-28 2024-04-30 ASC Engineered Solutions, LLC Pre-assembled coupling assemblies with pipe fitting
US11976757B2 (en) 2017-07-28 2024-05-07 ASC Engineered Solutions, LLC Pre-assembled coupling assembly with cap
US11344758B2 (en) 2019-04-10 2022-05-31 Minimax Viking Research & Development Gmbh Institutional sprinklers and installation assemblies
US11964177B2 (en) 2019-04-10 2024-04-23 Minimax Viking Research & Development Gmbh Institutional sprinklers and installation assemblies

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