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GB2249610A - Downstream venting air line connector - Google Patents

Downstream venting air line connector Download PDF

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Publication number
GB2249610A
GB2249610A GB9023359A GB9023359A GB2249610A GB 2249610 A GB2249610 A GB 2249610A GB 9023359 A GB9023359 A GB 9023359A GB 9023359 A GB9023359 A GB 9023359A GB 2249610 A GB2249610 A GB 2249610A
Authority
GB
United Kingdom
Prior art keywords
air
connector
air line
line connector
venting air
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Withdrawn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
GB9023359A
Other versions
GB9023359D0 (en
Inventor
Ronald Dunn
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
Priority to GB9023359A priority Critical patent/GB2249610A/en
Publication of GB9023359D0 publication Critical patent/GB9023359D0/en
Publication of GB2249610A publication Critical patent/GB2249610A/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Withdrawn legal-status Critical Current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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/38—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of two pipe-end fittings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

A pipe connector comprising a male bayonet end fitting 11 for use with a female connector 10 to provide a quick action coupling incorporates a check valve closure member 12 having a bleed orifice which, on separation of the two-part coupling, permits slow safety venting of a hose associated with the end fitting 11. <IMAGE>

Description

DOWNSTREAM VENTING SAFETY AIR-LINE CONNECTOR This invention relates to a downstream venting safety air line connector.
In current compressed air distribution systems, in workshops, educational establishments etc., individual air outlets are very often provided with snap action bayonet type connectors. By this means differing air tools can be quickly connected via a flexible hose to the main air distribution system. When such a connector has been in use and the flexible hose pressurised, if such quick action air connector is disconnected by depressing the normal lock ring etc., the air line connector bayonet will disengage very rapidly and very often flail about unless restrained by hand.
This 'flying' bayonet connector is a safety hazard as if it strikes a person on their face or especially on eyes severe damage can occur...even eye sight can be lost.
Other 'safety' connectors employ additional human actions to vent the downstream hose etc.
According to the present invention there is provided in the air line bayonet connector a one way restrictor that gives the following action automatically: When connector is made....Compressed air flows through connector to tool Fig 1. without significant restriction.
On disconnect Piston roves to its 'sealed' position but Fig. 2 permits a controlled air leak through piston to slowly vent compressed air in flexible hose and air tool thus subduing violent movement of the bayonet connector. The venting ensures that the air tool system is safe for subsequent personnel.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing in which: Figure 1. Illustrates the downstream venting air line connector operation while air is flowing to appliance. When 'connector' 11 is connected to air supply check valve 10 the piston 12 is blown to the 'open' position as shown thus permitting air to flow to appliance.
Figure 2. Illustrates the downstream venting air line connector operation just after disconnection from main air supply and while it is venting compressed air from the flexible hose and air tool.
The piston 12 is blown to the 'shut' position by the residual air pressure which is slowly vented to atmosphere through the orifice in the nose of the piston.
Figure 3. Illustrates by section and end views the piston configuration.

Claims (2)

1. By incorporation of a one way restrictor in a snapaction air line bayonet connector the safety hazard on disconnect is minimized i.e.
movement of the bayonet is subdued.
2. Automatic venting prevents the future use of a sealed and pneumatically charged hose.
GB9023359A 1990-10-26 1990-10-26 Downstream venting air line connector Withdrawn GB2249610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9023359A GB2249610A (en) 1990-10-26 1990-10-26 Downstream venting air line connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9023359A GB2249610A (en) 1990-10-26 1990-10-26 Downstream venting air line connector

Publications (2)

Publication Number Publication Date
GB9023359D0 GB9023359D0 (en) 1990-12-05
GB2249610A true GB2249610A (en) 1992-05-13

Family

ID=10684420

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9023359A Withdrawn GB2249610A (en) 1990-10-26 1990-10-26 Downstream venting air line connector

Country Status (1)

Country Link
GB (1) GB2249610A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2266757A (en) * 1992-05-07 1993-11-10 Dart Engineering Ag Check valve and valved nozzle
GB2280491A (en) * 1993-07-30 1995-02-01 Nat Coupling Co Inc Undersea hydraulic coupling with bleed valve
EP1215373A3 (en) * 2000-12-18 2003-07-16 PUReM Abgassysteme GmbH &amp; Co. KG Exhaust gas purification apparatus to eliminate NOx from the exhaust gas of an internal combustion engine
EP1281316A3 (en) * 2001-08-02 2003-09-03 Interpuls S.P.A. Device for making a quick connection to a vacuum line, a filtered air line or a milk line of a milking plant
GB2407145A (en) * 2003-09-12 2005-04-20 Ford Global Tech Llc Valve for controlling clutch
EP2615349A2 (en) 2011-12-15 2013-07-17 Pedro Gregorio Casamian Quick-connect fitting with safety system for pneumatic tubes
US12214154B1 (en) 2024-01-05 2025-02-04 James Roundy Valve and related methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB565291A (en) * 1943-04-23 1944-11-03 Arthur Larue Parker Improvements in fluid valves
GB1529614A (en) * 1975-06-23 1978-10-25 Carrier Corp Reversible refrigeration system
GB2153050A (en) * 1984-01-23 1985-08-14 Royal Ordnance Plc Valve
US4643222A (en) * 1985-04-17 1987-02-17 Chatleff Controls, Inc. Check valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB565291A (en) * 1943-04-23 1944-11-03 Arthur Larue Parker Improvements in fluid valves
GB1529614A (en) * 1975-06-23 1978-10-25 Carrier Corp Reversible refrigeration system
GB2153050A (en) * 1984-01-23 1985-08-14 Royal Ordnance Plc Valve
US4643222A (en) * 1985-04-17 1987-02-17 Chatleff Controls, Inc. Check valve

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5312083A (en) * 1992-05-07 1994-05-17 Thure Ekman Arrangement in a media-conducting unit
GB2266757B (en) * 1992-05-07 1996-01-17 Dart Engineering Ag A media-conducting unit
GB2266757A (en) * 1992-05-07 1993-11-10 Dart Engineering Ag Check valve and valved nozzle
GB2280491A (en) * 1993-07-30 1995-02-01 Nat Coupling Co Inc Undersea hydraulic coupling with bleed valve
GB2280491B (en) * 1993-07-30 1997-09-10 Nat Coupling Co Inc Undersea hydraulic coupling with bleed valve
US6739124B2 (en) 2000-12-18 2004-05-25 Purem Abgassystem Gmbh & Co. Kg Exhaust gas purification system
EP1215373A3 (en) * 2000-12-18 2003-07-16 PUReM Abgassysteme GmbH &amp; Co. KG Exhaust gas purification apparatus to eliminate NOx from the exhaust gas of an internal combustion engine
EP1281316A3 (en) * 2001-08-02 2003-09-03 Interpuls S.P.A. Device for making a quick connection to a vacuum line, a filtered air line or a milk line of a milking plant
GB2407145A (en) * 2003-09-12 2005-04-20 Ford Global Tech Llc Valve for controlling clutch
US7010407B2 (en) 2003-09-12 2006-03-07 Ford Global Technologies, Llc One-way orifice for controlling a supply flow rate and permitting rapid reverse flow
GB2407145B (en) * 2003-09-12 2006-11-29 Ford Global Tech Llc A system and apparatus for controlling fluid flow
EP2615349A2 (en) 2011-12-15 2013-07-17 Pedro Gregorio Casamian Quick-connect fitting with safety system for pneumatic tubes
US12214154B1 (en) 2024-01-05 2025-02-04 James Roundy Valve and related methods

Also Published As

Publication number Publication date
GB9023359D0 (en) 1990-12-05

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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)