GB1212147A - Audible relief valve - Google Patents

Audible relief valve

Info

Publication number
GB1212147A
GB1212147A GB1728669A GB1728669A GB1212147A GB 1212147 A GB1212147 A GB 1212147A GB 1728669 A GB1728669 A GB 1728669A GB 1728669 A GB1728669 A GB 1728669A GB 1212147 A GB1212147 A GB 1212147A
Authority
GB
United Kingdom
Prior art keywords
chamber
pressure
piston moves
relief valve
fluid
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
Application number
GB1728669A
Inventor
Bidwell Chapman Cranage
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.)
Stile Craft Manufacturers Inc
Original Assignee
Stile Craft Manufacturers Inc
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 Stile Craft Manufacturers Inc filed Critical Stile Craft Manufacturers Inc
Priority to GB1728669A priority Critical patent/GB1212147A/en
Publication of GB1212147A publication Critical patent/GB1212147A/en
Expired legal-status Critical Current

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
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

1,212,147. Valves. STILE-CRAFT M.F.R.S. Inc. 2 April, 1969, No. 17286/69. Heading F2V. A pressure relief valve for attachment to a humidifier has a piston 24 formed with a conical spigot on its base for closing the inlet passage 35 in a resilient seal 34 and movable against the bias of its own weight under inlet pressure to permit pressure fluid to flow into chamber 21 and thereafter into chamber 22 when the end flange of the piston moves into chamber 22. Pressure fluid is released through slot 44 formed between a flange 28 on a cap 20 and the wall of the base 17 and passes through a slot 45 formed with a whistle lip 47 which communicates with resonant chamber 23. When the end flange of the piston moves into chamber 22 fluid can pass out of chamber 21 faster than it can flow into it so the piston moves down to close the inlet again. Pressure release and the whistling are thus intermittent.
GB1728669A 1969-04-02 1969-04-02 Audible relief valve Expired GB1212147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1728669A GB1212147A (en) 1969-04-02 1969-04-02 Audible relief valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1728669A GB1212147A (en) 1969-04-02 1969-04-02 Audible relief valve

Publications (1)

Publication Number Publication Date
GB1212147A true GB1212147A (en) 1970-11-11

Family

ID=10092545

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1728669A Expired GB1212147A (en) 1969-04-02 1969-04-02 Audible relief valve

Country Status (1)

Country Link
GB (1) GB1212147A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2191048A1 (en) * 1972-06-19 1974-02-01 American Hospital Supply Corp
EP1507582A1 (en) * 2002-05-17 2005-02-23 Salter Labs Bubble humidifier with improved diffuser and pressure relief device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2191048A1 (en) * 1972-06-19 1974-02-01 American Hospital Supply Corp
EP1507582A1 (en) * 2002-05-17 2005-02-23 Salter Labs Bubble humidifier with improved diffuser and pressure relief device
EP1507582A4 (en) * 2002-05-17 2008-09-10 Salter Labs Bubble humidifier with improved diffuser and pressure relief device

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee