US3253657A - Nozzle for automatic fire extinguishing devices - Google Patents

Nozzle for automatic fire extinguishing devices Download PDF

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Publication number
US3253657A
US3253657A US212066A US21206662A US3253657A US 3253657 A US3253657 A US 3253657A US 212066 A US212066 A US 212066A US 21206662 A US21206662 A US 21206662A US 3253657 A US3253657 A US 3253657A
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US
United States
Prior art keywords
nozzle
fire extinguishing
automatic fire
protrusion
extinguishing devices
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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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US212066A
Inventor
Job Eduard
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.)
SELBSTTATIGE FEUERLOSCHANLAGEN
Selbsttatige Feuerloschanlagen & Co GmbH
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SELBSTTATIGE FEUERLOSCHANLAGEN
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Publication of US3253657A publication Critical patent/US3253657A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
    • A62C37/14—Releasing means, e.g. electrically released heat-sensitive with frangible vessels
    • 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

  • the present invention relates to a nozzle for automatic fire extinguishing devices.
  • the invention is particularly directed to a nozzle type in which a closure body for the outlet opening of the nozzle is held in closing position by a safety element responsive to a certain temperature, for instance by a liquid filled ampule or vial or a soldered closure which at a certain alarm temperature is caused to burst or to melt.
  • a nozzle of the above mentioned type which may be termed a self-sealing nozzle, to assure the tightness or seal of the closure also if a pressure increase should occur in the fluid conduit,
  • the nozzle according to the invention is characterized primarily in that the seat for the closure body is arranged on a protrusion of the nozzle body which protrusion is yieldable in a resilient manner in response to a certain pressure of the extinguishing substance.
  • Such protrusion may be provided as part of the nozzle body when forming the nozzle and by correspondingly dimensioning such protrusion so as to obtain a resilient yieldability.
  • Such protrusion which may have the shape of a collar-like ring preferably consists of one piece with the nozzle body, i.e., is integral therewith, and may be formed out of the material of the nozzle body. In this way, a self-sealing nozzle will be obtained which can be produced at approximately the same costs as an ordinary nozzle without self-sealing ability.
  • the nozzle body 1 is in customary manner designed as a nipple with outer thread 2 and an inner bore 3.
  • the nozzle body 1 carries a yoke 4 with two legs and with a head 5 and is furthermore provided with radially extending wings 6 forming a spray dish.
  • the upper portion of the nozzle body is provided with an annular protrusion 7 and comprises a chamber 8 communicating with bore 3 through an opening 9.
  • a truncated cone-shaped valve body 10 is inserted into the protrusion 7 and is held in its nozzle closing position in which the bore 3 is closed by said valve body 10 by means of a glass ampule or vial 11.
  • This glass ampule 11 is clamped between the head 5 forming the upper bearing for said body 10 and the valve body 10 forming the lower bearing for said ampule 11.
  • the ampule 11 has a lower narrowing portion 12 which extends into the cavity of the valve body 10.
  • the valve body 10 has its upper outwardly extending flange provided with a conical surface 13 pressed by said ampule 11 against a correspondingly shaped seat in the protrusion 7 through the interveution of a sealing ring 14 of polytetrafluoroe-thylene, also known under the name Teflon.
  • the ampule 11 is filled with a liquid which at a certain alarm or release temperature will cause the ampule to burst, As a result thereof, the closure body 10 is released so that it will be lifted off its seat 13 by the pressure p in the line system containing the extinguishing fluid. In this instance, the jet coming from bore 3 hits the dish 6 and will be sprayed all over the vicinity.
  • the annular protrusion 7 will when considering its annular width and the properties of the material from which it is made have such thin walls that it will be resiliently yieldable in the direction of the longitudinal axis of the nozzle. In this way the annular protrusion 7 will be able under the influence of the liquid pressure p, which is also effective in chamber 8 and acts upon protrusion 7, to have ts sea-t rest against the conical surface 13 of the valve body 10 at correspondingly increased pressure. The sealing pressure and thus the sealing effect of the closure will be correspondingly increased and this effect will be aided by the flat truncated coneshape of the annular protrusion 7.
  • the sealing ring 14 of Teflon will assure a tight engagement, also if a slight mutual displacement of the sealing surfaces should have occurred, while eliminating the necessity that the two surfaces completely and uniformly engage each other.
  • the immediate lifting off of the valve body 10 without sticking or adhering effect will be assured.
  • the seat of the annular protrusion 7 may also contain a tin seat as sealing means.
  • the manufacture of the annular protrusion 7 during the manufacture of the entire nozzle body will be possible in a simple manner, for instance by turning out the chamber 8 from the body of the nozzle.
  • the nozzle body may be made as a single piece in spite of the self-sealing property of the nozzle.
  • the annular protrusion 7 may have a cross section with a wall thickness which slightly tapers toward the seat.
  • the valve body 10 may be held in its closing position by a closure member soldered with a melting solder.
  • a nozzle arrangement responsive automatically to a certain temperature for fire extinguishing devices which comprises: a nozzle body having axial passage means therethrough with an inlet connectable to a line containing fire extinguishing substance under pressure and provided with an outlet for conveying fire extinguishing substance to a place on fire, an annular flange yieldable axially of said nozzle body and formed integral with and of the same piece of the same material as said nozzle body and having an opening with a seat defining an outlet, a closure member normally resting on said seat, holding means to hold said closure member against said seal.
  • said flange being yielda'bly pressed against said closure member by pressure of said fire extinguishing substance to hold said closure member against said seat to thereby cause said closure member to close said outlet, said holding means being operable in response to a certain temperature to become ineffective to thereby permitthe pressure of the fire extinguishing substance in said passage means to lift said closure member off said scat.
  • ROBERT B REEVES, Primary Examiner.

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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)

Description

May 31, 1966 E. JOB 3,253,657
NOZZLE FOR AUTOMATIC FIRE EXTINGUISHING DEVICES Filed July 24, 1962 INVEHTOQ.
'b uara J25 United States Patent 1 Claim. (Cl. l6938) The present invention relates to a nozzle for automatic fire extinguishing devices. The invention is particularly directed to a nozzle type in which a closure body for the outlet opening of the nozzle is held in closing position by a safety element responsive to a certain temperature, for instance by a liquid filled ampule or vial or a soldered closure which at a certain alarm temperature is caused to burst or to melt.
It is an object of this invention with a nozzle of the above mentioned type, which may be termed a self-sealing nozzle, to assure the tightness or seal of the closure also if a pressure increase should occur in the fluid conduit,
It is a further object of this invention to provide a nozzle as set forth in the preceding paragraph which will be simple in construction and inexpensive in manufacture.
These and other objects and advantages of the invention will appear more clearly from the following specification in connection with the accompanying drawing illustrating on an enlarged scale a central axial longitudinal section through a nozzle according to the invention.
The nozzle according to the invention is characterized primarily in that the seat for the closure body is arranged on a protrusion of the nozzle body which protrusion is yieldable in a resilient manner in response to a certain pressure of the extinguishing substance. Such protrusion may be provided as part of the nozzle body when forming the nozzle and by correspondingly dimensioning such protrusion so as to obtain a resilient yieldability. Such protrusion which may have the shape of a collar-like ring preferably consists of one piece with the nozzle body, i.e., is integral therewith, and may be formed out of the material of the nozzle body. In this way, a self-sealing nozzle will be obtained which can be produced at approximately the same costs as an ordinary nozzle without self-sealing ability.
Referring now to the drawing in detail, the nozzle body 1 is in customary manner designed as a nipple with outer thread 2 and an inner bore 3. The nozzle body 1 carries a yoke 4 with two legs and with a head 5 and is furthermore provided with radially extending wings 6 forming a spray dish. The upper portion of the nozzle body is provided with an annular protrusion 7 and comprises a chamber 8 communicating with bore 3 through an opening 9. A truncated cone-shaped valve body 10 is inserted into the protrusion 7 and is held in its nozzle closing position in which the bore 3 is closed by said valve body 10 by means of a glass ampule or vial 11. This glass ampule 11 is clamped between the head 5 forming the upper bearing for said body 10 and the valve body 10 forming the lower bearing for said ampule 11. As will be seen from the drawing, the ampule 11 has a lower narrowing portion 12 which extends into the cavity of the valve body 10. The valve body 10 has its upper outwardly extending flange provided with a conical surface 13 pressed by said ampule 11 against a correspondingly shaped seat in the protrusion 7 through the interveution of a sealing ring 14 of polytetrafluoroe-thylene, also known under the name Teflon. The ampule 11 is filled with a liquid which at a certain alarm or release temperature will cause the ampule to burst, As a result thereof, the closure body 10 is released so that it will be lifted off its seat 13 by the pressure p in the line system containing the extinguishing fluid. In this instance, the jet coming from bore 3 hits the dish 6 and will be sprayed all over the vicinity.
The annular protrusion 7 will when considering its annular width and the properties of the material from which it is made have such thin walls that it will be resiliently yieldable in the direction of the longitudinal axis of the nozzle. In this way the annular protrusion 7 will be able under the influence of the liquid pressure p, which is also effective in chamber 8 and acts upon protrusion 7, to have ts sea-t rest against the conical surface 13 of the valve body 10 at correspondingly increased pressure. The sealing pressure and thus the sealing effect of the closure will be correspondingly increased and this effect will be aided by the flat truncated coneshape of the annular protrusion 7. When a pressure increase in the line system of the extinguishing fluid calls for an increased seal, such an increased seal will automatically be obtained by the elasticity of the annular protrusion 7 with the effect that the seal will press against the conical surface 13 of valve body 10 at correspondingly increased pressure. The sealing ring 14 of Teflon will assure a tight engagement, also if a slight mutual displacement of the sealing surfaces should have occurred, while eliminating the necessity that the two surfaces completely and uniformly engage each other. On the other hand, the immediate lifting off of the valve body 10 without sticking or adhering effect will be assured. Instead of a Teflon ring, the seat of the annular protrusion 7 may also contain a tin seat as sealing means.
As will be evident from the drawing, the manufacture of the annular protrusion 7 during the manufacture of the entire nozzle body will be possible in a simple manner, for instance by turning out the chamber 8 from the body of the nozzle. The nozzle body may be made as a single piece in spite of the self-sealing property of the nozzle. For purposes of increasing the resilient yieldability, the annular protrusion 7 may have a cross section with a wall thickness which slightly tapers toward the seat. Instead of by means of the ampule 11, the valve body 10 may be held in its closing position by a closure member soldered with a melting solder.
It is, of course, to be understood that the present invention is, by no means, limited to the particular construction shown in the drawing but also comprises any modifications within the scope of the appended claim.
What I claim is:
A nozzle arrangement responsive automatically to a certain temperature for fire extinguishing devices, which comprises: a nozzle body having axial passage means therethrough with an inlet connectable to a line containing fire extinguishing substance under pressure and provided with an outlet for conveying fire extinguishing substance to a place on fire, an annular flange yieldable axially of said nozzle body and formed integral with and of the same piece of the same material as said nozzle body and having an opening with a seat defining an outlet, a closure member normally resting on said seat, holding means to hold said closure member against said seal. said flange being yielda'bly pressed against said closure member by pressure of said fire extinguishing substance to hold said closure member against said seat to thereby cause said closure member to close said outlet, said holding means being operable in response to a certain temperature to become ineffective to thereby permitthe pressure of the fire extinguishing substance in said passage means to lift said closure member off said scat.
References Cited by the Examiner UNITED STATES PATENTS 842,725 1/1907 Taylor 169-38 1,273,387 7/1918 Loepsinger 16938 1,464,622 8/ 1923 Loepsinger 16938 4 1,771,826 7/1930 Taylor 169-38 1,797,919 3/1931 Loepsinger 16938 3,069,174 12/1962 Skinner 27748 FOREIGN PATENTS 246,481 5/1926 Great Britain. 333,412 8/1930 Great Britain.
ROBERT B. REEVES, Primary Examiner.
1O EUGENE F. BLANCHARD, RAPHAEL M. LUPO,
J. HUSSER, R. S. STROBEL, Assistant Examiners.
US212066A 1961-07-28 1962-07-24 Nozzle for automatic fire extinguishing devices Expired - Lifetime US3253657A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES75066A DE1258278B (en) 1961-07-28 1961-07-28 Fire extinguisher

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DE (1) DE1258278B (en)
GB (1) GB954967A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811511A (en) * 1971-07-12 1974-05-21 Graviner Colnbrook Ltd Fire extinguishing systems
US3918645A (en) * 1974-07-10 1975-11-11 Jomos Sprinkler Material Ag Sprinkler valves
US4019581A (en) * 1975-08-14 1977-04-26 Diggs Richard E Metal building with combined temperature control and firefighting system
FR2336641A1 (en) * 1975-12-18 1977-07-22 Diggs Richard Metal building with combined temp. control and fire fighting system - includes metal frame structure having hollow members defining water flow passages for circulation
US4109727A (en) * 1975-09-06 1978-08-29 Job Eduard J Dual-seal sprinkler system
US4217961A (en) * 1977-04-02 1980-08-19 Angus Fire Armour Limited Water sprinklers
US4796710A (en) * 1985-09-09 1989-01-10 Job Eduard J Glass bulb for sprinkler heads
US4854388A (en) * 1987-05-28 1989-08-08 American Safety Products Fire extinguishing apparatus
US4901799A (en) * 1988-06-24 1990-02-20 Grinnell Corporation Sprinkler head having protuberant ridge valve seat
US20170326391A1 (en) * 2014-10-20 2017-11-16 Fire Suppression System Fire suppression system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2639245C2 (en) * 1976-09-01 1982-04-08 Eduard J. Ing.(grad.) 2070 Ahrensberg Job Fire extinguisher head for automatic fire extinguishing systems
US5083616A (en) * 1989-05-25 1992-01-28 Central Sprinkler Corporation Ceiling sprinkler

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US842725A (en) * 1904-05-25 1907-01-29 Gen Fire Extinguisher Co Automatic sprinkler.
US1273387A (en) * 1912-07-03 1918-07-23 Gen Fire Extinguisher Co Automatic sprinkler.
US1464622A (en) * 1919-03-18 1923-08-14 Gen Fire Extinguisher Co Automatic sprinkler
GB246481A (en) * 1925-01-23 1926-05-06 Rene Regnault Improvements in or relating to automatic sprinkler systems for fire-extinguishing
US1771826A (en) * 1926-02-25 1930-07-29 Taylor John Automatic sprinkler and the like
GB333412A (en) * 1929-08-28 1930-08-14 Cecil Henry Whittington Improvements in automatic sprinklers for fire extinguishing purposes
US1797919A (en) * 1929-11-30 1931-03-24 Gen Fire Extinguisher Co Quartz bulb
US3069174A (en) * 1959-02-05 1962-12-18 Robert T Skinner Seal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE57061C (en) * f. GRINNELL in Providence, Staat Rhode Island, V. St. A Automatic fire extinguishing device
US552473A (en) * 1895-12-31 William hakkness
CH14041A (en) * 1897-03-31 1897-09-30 Dowson Taylor & Co Limited Water jet atomizer for fire extinguishing lines
US781159A (en) * 1904-01-07 1905-01-31 Frank William Reed Valve-seating for sprinklers.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US842725A (en) * 1904-05-25 1907-01-29 Gen Fire Extinguisher Co Automatic sprinkler.
US1273387A (en) * 1912-07-03 1918-07-23 Gen Fire Extinguisher Co Automatic sprinkler.
US1464622A (en) * 1919-03-18 1923-08-14 Gen Fire Extinguisher Co Automatic sprinkler
GB246481A (en) * 1925-01-23 1926-05-06 Rene Regnault Improvements in or relating to automatic sprinkler systems for fire-extinguishing
US1771826A (en) * 1926-02-25 1930-07-29 Taylor John Automatic sprinkler and the like
GB333412A (en) * 1929-08-28 1930-08-14 Cecil Henry Whittington Improvements in automatic sprinklers for fire extinguishing purposes
US1797919A (en) * 1929-11-30 1931-03-24 Gen Fire Extinguisher Co Quartz bulb
US3069174A (en) * 1959-02-05 1962-12-18 Robert T Skinner Seal

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811511A (en) * 1971-07-12 1974-05-21 Graviner Colnbrook Ltd Fire extinguishing systems
US3918645A (en) * 1974-07-10 1975-11-11 Jomos Sprinkler Material Ag Sprinkler valves
US4019581A (en) * 1975-08-14 1977-04-26 Diggs Richard E Metal building with combined temperature control and firefighting system
US4109727A (en) * 1975-09-06 1978-08-29 Job Eduard J Dual-seal sprinkler system
FR2336641A1 (en) * 1975-12-18 1977-07-22 Diggs Richard Metal building with combined temp. control and fire fighting system - includes metal frame structure having hollow members defining water flow passages for circulation
US4217961A (en) * 1977-04-02 1980-08-19 Angus Fire Armour Limited Water sprinklers
US4796710A (en) * 1985-09-09 1989-01-10 Job Eduard J Glass bulb for sprinkler heads
US4854388A (en) * 1987-05-28 1989-08-08 American Safety Products Fire extinguishing apparatus
US4901799A (en) * 1988-06-24 1990-02-20 Grinnell Corporation Sprinkler head having protuberant ridge valve seat
US20170326391A1 (en) * 2014-10-20 2017-11-16 Fire Suppression System Fire suppression system
US10512806B2 (en) * 2014-10-20 2019-12-24 Knox Fire And Security Limited Fire suppression system

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DE1258278B (en) 1968-01-04
GB954967A (en) 1964-04-08

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