NZ334872A - Thermally responsive coupling for fluid-carrying lines, heat deformable collar allows axial movement of fluid carrying member if temperature is excessive - Google Patents

Thermally responsive coupling for fluid-carrying lines, heat deformable collar allows axial movement of fluid carrying member if temperature is excessive

Info

Publication number
NZ334872A
NZ334872A NZ334872A NZ33487297A NZ334872A NZ 334872 A NZ334872 A NZ 334872A NZ 334872 A NZ334872 A NZ 334872A NZ 33487297 A NZ33487297 A NZ 33487297A NZ 334872 A NZ334872 A NZ 334872A
Authority
NZ
New Zealand
Prior art keywords
fluid
coupling
collar
bushing
shoulder
Prior art date
Application number
NZ334872A
Inventor
Thomas A Mummert
Original Assignee
S
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
Application filed by S filed Critical S
Publication of NZ334872A publication Critical patent/NZ334872A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
    • F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

A thermally sensitive coupling for fluid conduits consists of a fluid carrying member 10, a thermally deformable bushing 30, and a collar 40. The bushing 30 fits around the member 30, and the two are mounted within the collar 40 so that the end 35 of the bushing protrudes from the end of the collar, thus retaining the bushing in place. A flange 32 on the bushing abuts a shoulder 32 within the collar. In use the body 44 of the collar is attached to a valve body so that the end 17 of the member 30 is pressed against a spring loaded valve member, opening the valve. This provides a force in the direction of arrow F. This provides a shearing force on shoulder 32. When the coupling is exposed to excessive temperatures, for example, in the range 240° - 300° F, the shoulder 32 softens allowing the shoulder to deform, and member 30 then moves axially in the direction of force F. This causes the valve to which the coupling is attached to close. The coupling is suitable for connecting a gas appliance to a gas cylinder, the coupling causing the gas flow to be interrupted in the event of a fire.
NZ334872A 1996-10-16 1997-10-15 Thermally responsive coupling for fluid-carrying lines, heat deformable collar allows axial movement of fluid carrying member if temperature is excessive NZ334872A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2815696P 1996-10-16 1996-10-16
PCT/US1997/018437 WO1998016771A1 (en) 1996-10-16 1997-10-15 Thermally responsive coupling for fluid-carrying lines

Publications (1)

Publication Number Publication Date
NZ334872A true NZ334872A (en) 2000-11-24

Family

ID=21841883

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ334872A NZ334872A (en) 1996-10-16 1997-10-15 Thermally responsive coupling for fluid-carrying lines, heat deformable collar allows axial movement of fluid carrying member if temperature is excessive

Country Status (4)

Country Link
AU (1) AU733683B2 (en)
CA (1) CA2268078A1 (en)
NZ (1) NZ334872A (en)
WO (1) WO1998016771A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US114511A (en) * 1871-05-09 Improvement in pipe-couplings
US848169A (en) * 1905-05-06 1907-03-26 Us Flexible Joint Company Flexible fluid-joint.
GB849123A (en) * 1958-02-12 1960-09-21 Atomic Energy Authority Uk Improvements in or relating to joints, for example, for pipes
US3801954A (en) * 1972-11-28 1974-04-02 Bunker Ramo Coupled electrical connector with heat-activated memory locking means

Also Published As

Publication number Publication date
AU4754597A (en) 1998-05-11
WO1998016771A1 (en) 1998-04-23
AU733683B2 (en) 2001-05-24
CA2268078A1 (en) 1998-04-23

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