GB2254130A - Non-return valve - Google Patents

Non-return valve Download PDF

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Publication number
GB2254130A
GB2254130A GB9204255A GB9204255A GB2254130A GB 2254130 A GB2254130 A GB 2254130A GB 9204255 A GB9204255 A GB 9204255A GB 9204255 A GB9204255 A GB 9204255A GB 2254130 A GB2254130 A GB 2254130A
Authority
GB
United Kingdom
Prior art keywords
valve assembly
return valve
return
flap
assembly
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Withdrawn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
GB9204255A
Other versions
GB9204255D0 (en
Inventor
H Birkett
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
Application filed by Individual filed Critical Individual
Publication of GB9204255D0 publication Critical patent/GB9204255D0/en
Publication of GB2254130A publication Critical patent/GB2254130A/en
Withdrawn legal-status Critical Current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
    • F16K15/00—Check valves
    • F16K15/20—Check valves specially designed for inflatable bodies, e.g. tyres
    • F16K15/202—Check valves specially designed for inflatable bodies, e.g. tyres and with flexible valve member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Toys (AREA)
  • Tents Or Canopies (AREA)

Abstract

A non-return valve, for air inlets to inflatable structures which are folded flat and stored away when not in use, comprises a flexible flap 1 secured at one end to an apertured base member 4 so as to overlie the aperture. The valve can be manufactured as a separate unit or the base member 4 may be defined by an inflatable structure, when the flap 1 will be secured to the inner face of the structure. The valve can also act as a pressure relief valve. <IMAGE>

Description

NON-REIURN VALVE.
This design relates to a non-return valve the principle of which is similar to existing non-return valves but is constructed as shown in Sections 'A' and 'B' primarily for air inlets to inflatable structures which are folded flat and are stored away when not in use.
The assembly consists of a flap 1. of sufficient strength and flexibility bonded 3. to one side of the air inlet hole 2. so that it forms a seal with the inside face of the inflated structure 4. around the air inlet hole 2. The mating surfaces 5. which form the valve may be coated with silicone gel (or other agent) in order to provide an effective seal and also to prevent mating surfaces from sticking to each other after prolonged storage for instance Section 'A' shows the flap 1. bonded 3. to inflatable structure 4.
Section 'B' shows the flap 1. bonded 3. with profile which will exert a pressure between the mating surf aces.
Section 'C' shows the non-return valve assy. as a separate unit as shown in sect 'C' and Detail 'D' ( TYPICAL PLAN VIEW OF UNIT AND SECTION ).
This unit may also be held captive between flanges when it could be installed into pipework or other plant items to act not only as a non-return valve but as a pressure relief.

Claims (11)

CLAIMS.
1. A non - return valve assembly the principle of which is similar to existing non - return valves but is constructed primarily for air inlets in inflatable structures.
2. A non - return valve assembly as claimed in Claim 1 wherein the valve is constructed of thin flat components so that it is suitable for inflatable structures which are reguired to be folded flat and stored away when not in use.
3. A non - return valve assembly as claimed in Claim 1 wherein the assembly consists of a flap of required shape, sufficient strength and flexibility which is bonded to one side of an air inlet hole so that it forms a seal with the inside face of the structure but is constructed in such a manner that the valve opens when the air pressure on the outside of the structure is greater than that on the inside.
4. A non - return valve assembly as claimed in Claim 3 wherein the profile of the flap is such that it will exert a pressure between the mating surfaces.
5. A non - return valve assembly as claimed in Claim 3 or Claim 4 wherein the mating surfaces which form the valve are coated with silicone gel or some other suitable agent in order that a more effective seal is provided.
6. A non - return valve assembly as claimed in Claim 3 or Claim 4 wherein the mating surfaces which form the valve are coated with silicone gel or some other suitable agent in order to prevent them sticking together after prolonged storage.
7. A non - return valve assembly as claimed in any preceding claim wherein the valve is integral with the structure or plant which it serves.
8. A non - return valve assembly as claimed in any preceding claim wherein the valve assembly is manufactured as a separate unit.
9. A non - return valve assembly as claimed in any preceding claim wherein the valve assembly is held captive between flanges when it can be installed into pipework or other plant items.
10. A non - return valve assembly as claimed in any preceding claim wherein the valve can also act also as a pressure relief when the pressure inside the structure becomes greater than that which the flap is able to resist.
11. A non - return valve assembly as described herein with reference to Sections 'A', 'B', 'C' and Detail 'D' of the accompanying drawing.
GB9204255A 1991-02-28 1992-02-28 Non-return valve Withdrawn GB2254130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919104243A GB9104243D0 (en) 1991-02-28 1991-02-28 Non-return valve

Publications (2)

Publication Number Publication Date
GB9204255D0 GB9204255D0 (en) 1992-04-08
GB2254130A true GB2254130A (en) 1992-09-30

Family

ID=10690753

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919104243A Pending GB9104243D0 (en) 1991-02-28 1991-02-28 Non-return valve
GB9204255A Withdrawn GB2254130A (en) 1991-02-28 1992-02-28 Non-return valve

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919104243A Pending GB9104243D0 (en) 1991-02-28 1991-02-28 Non-return valve

Country Status (1)

Country Link
GB (2) GB9104243D0 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB825659A (en) * 1956-11-14 1959-12-16 P B Cow & Company Ltd Valves for use in breathing appliances
GB862224A (en) * 1958-03-13 1961-03-08 American Can Co Improvements relating to the venting of containers
GB1495907A (en) * 1975-08-04 1977-12-21 Nippon Oil Seal Ind Co Ltd Reed valve
GB2172260A (en) * 1985-03-13 1986-09-17 Dunlop Ltd Sealing pressurised containers
EP0324519A2 (en) * 1988-01-06 1989-07-19 Klerk's Plastic Industrie B.V. Inflatable body with a valve and a packaging with such a body
WO1989010508A1 (en) * 1988-04-27 1989-11-02 Woodville Polymer Engineering Limited Inflatable containers and valves therefor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB825659A (en) * 1956-11-14 1959-12-16 P B Cow & Company Ltd Valves for use in breathing appliances
GB862224A (en) * 1958-03-13 1961-03-08 American Can Co Improvements relating to the venting of containers
GB1495907A (en) * 1975-08-04 1977-12-21 Nippon Oil Seal Ind Co Ltd Reed valve
GB2172260A (en) * 1985-03-13 1986-09-17 Dunlop Ltd Sealing pressurised containers
EP0324519A2 (en) * 1988-01-06 1989-07-19 Klerk's Plastic Industrie B.V. Inflatable body with a valve and a packaging with such a body
WO1989010508A1 (en) * 1988-04-27 1989-11-02 Woodville Polymer Engineering Limited Inflatable containers and valves therefor

Also Published As

Publication number Publication date
GB9204255D0 (en) 1992-04-08
GB9104243D0 (en) 1991-04-17

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)