NZ205051A

NZ205051A - Tee coupling for pipe:inserting branch pipe opens valve

Info

Publication number: NZ205051A
Application number: NZ20505183A
Authority: NZ
Inventors: Owen Graham Johnson
Original assignee: Owen Graham Johnson
Priority date: 1983-07-28
Filing date: 1983-07-28
Publication date: 1987-03-06
Also published as: AU580962B2; AU3119084A

Description

<div class="application article clearfix" id="description"> XoSoS i 203051 PATENTS FORM NO. 5 THE PATENTS ACT 19 5 3 COMPLETE SPECIFICATION After Provisional No. 205051 Dated: 23th July 1983 TITLE: "IMPROVEMENTS IN OR RELATING TO VALVING MEANS" I/^' OWEN GRAHAM JOHNSON, of Te Pahu, R.D.5., Hamilton, New Zealand, a British subject and New Zealand citizen hereby declare the invention for which I/W:^ pray that a patent may be granted to me/y:£/, and the method by which it is to be performed to be particularly described in and by the following statement; -1- «t6CBR£?* ;205051 ;This invention relates to valves. ;It is an object of the present invention to provide a valving means which can be used in a fluid conduit or as an auxiliary valve in a valve housing. ;Further objects and advantages of the present invention will become apparent from the ensuing description which is given by way of example. ;According to the present invention there is provided a valve comprising a housing defining a chamber, an inlet to the valve chamber, a valve opening communicable with the valve chamber and a sealing means for sealing off the opening wherein the opening is adapted to receive a coupling which when joined to the opening extends into the valve chamber and displaces the sealing means such that fluid within the chamber can flow through the opening. ;Aspects of the present invention will be described by way of example only with reference to the accompanying drawings in which: ;Figure 1: is a side perspective view of a valving means attached to a float valve in accordance with one possible embodiment of the present invention, and ;Figure 2; is a diagrammatic side view of a valving means in accordance with one possible embodiment of the present invention. ;-2- ;rr r 1 l U J U!.) 1 ;A valving means in accordance with the present invention can be located in a fluid conduit, such as a through-flow pipe, so as to provide a means by which access can be gained to the said fluid conduit. ;Alternatively, and as shown in Figure 1, a valving means as herein described may be attached to or integrally formed with a fluid control valve such as a float valve, thereby providing an auxiliary fluid outlet from a point where a fluid source is ordinarily present but not readily accessible. ;A valving means in accordance with the present invention may be used for either gaseous or liqueous substances, and it can be used either as an inlet or an outlet to a fluid conduit of valve housing. ;A valving means and matching coupling in accordance with the present invention can be fabricated from any suitable steel materials, which preferably are non-corrosible, or moulded in suitably rigid mouldable materials such as plastics, fibre-glass or the like. ;Xn.the example illustrated the sealing means is a piston or poppet valve, however it is to be appreciated that this is an optional choice and in fact the sealing means may be a flap valve or other closure means which is capable of preventing the egress of fluid from the valve chamber but which is displaeeable by the application of pressure to the outside surface of the sealing means. A variety of biasing means can be used to bias the sealing means against the valve opening. ;-3- ;1 ;205051 ;A suitable biasing means for biasing the valve against the valve seat may comprise a compression spring fabricated from non-corrosible materials such as stainless steel, ;or where a flap valve or the like is used a tensional spring can be used. ;in the embodiment shown in Figure 2 the sealing means comprises a poppet valve which has a conically shaped head; alternatively however, the valve may have a spherical, hemi-spherical, disc or other suitably shaped head, such that there is provided a valve face which will facilitate an effective seal against the valve seat. ;To further provide an effective seal by the sealing means the valve head may be fabricated in a resilient material and/or the valve seat may have a resilient "0" ring against which the valve head closes. Alternatively, ;the valve head may have a groove which accommodates the said "O" ring in a complementary manner such that when the valve is closed the valve head compresses the "O" ring against the valve seat. ;The poppet valve may be mounted on a base or cap which is removeable from the valve housing. Said cap may be attached to the valve housing by means of clips, complementary external/internal threads or the like. ;The coupling comprises a body fabricated in tube section. Said body may be dimensioned such that when the coupling is connected to the valve housing, the body extends a ;4 ;-4- ;205051 ;sufficient distance into the valve chamber to displace the sealing means from the opening, and to allow a fluid to pass around the periphery of the valve head and through the opening and the body of the coupling member. ;The part of the coupling body which enters the valve chamber ' that is, the valve displacing end, can be provided with apertures such that a fluid can flow through same and into or out from the hollow body of the coupling. ;In an alternative arrangement a spear may extend from the body of the coupling, which spear can provide means for displacing the sealing means obviating the need for the coupling body to extend into the valve chamber. ;The coupling may be engagable with the valve opening by means of arms which are securable around lugs located on the outside of the valve opening; alternatively other suitable forms of bayonet mounting can be employed. It should however be appreciated that a coupling could be disengagably fixed to the valve opening by a variety of means and for instance yet another convenient way to unite the coupling and valve opening is to have an external thread on the coupling body and a matching internal thread on the valve opening. ;A valving means as herein described, whether attached to or integrally formed with a water level control valve, is suitable among other things for use in a water trough where it is desirable to have access to the water source to which the water level control valve for the water trough is mounted. In such a situation a coupling member attached ;-5- ;O rs CI r* -f ^ u 5 U d I to a hose may be used to, for instance, supply water to an auxiliary or temporary water trough located nearby. One preferred embodiment of the present invention will now be described.with .reference to the drawings and by way of example only: a valving means generally indicated by arrow 1 comprises a housing generally indicated by arrow 2 defining a chamber generally indicated by arrow 3, an inlet to the valve chamber generally indicated by arrow 4, a valve opening communicable with the valve chamber generally indicated by arrow 5, and a sealing means generally indicated by arrow 6 for sealing off the opening 5 wherein the opening 5 is adapted to receive a coupling generally indicated by arrow 7 which when joined to the opening 5 extends into the valve chamber 3 and displaces the sealing means 6 such that fluid (not shown) within the chamber 3 can flow from the opening 5. The valve housing 2 and complementary coupling 7 are fabricated in glass reinforced polypropylene. In the embodiment of the present invention shown in Figure 2 an outlet generally indicated by arrow 8 from the valve chamber 3 is located opposite the inlet to the valve chamber 4. Said outlet 8 is connectable with a fluid control valve generally indicated by arrow 9. The sealing means 6 comprises a poppet valve which is biased against the valve seat generally indicated by arrow 10. Poppet valve 6 comprises a valve head 11 which is mounted on a valve stem 12, a valve guide 13 which supports the -6- 205051 valve stem 12 in a snug reciprocal fit and a biasing means generally indicated by arrow 14. The biasing means 14 comprises a compression spring fabricated in stainless steel and located around the valve stem 12, such that the said spring is compressed between the valve head and valve housing. The valve head 11 is fabricated in a rigid plastic material and is conical in shape such that when the valve face 15 is closed against the valve seat 10, the valve head 11 projects past the valve seat 10 and into.a socket (not clearly shown in the drawings) which is defined by the extended sides 16 of the valve opening 5. The valve guide 13 is mounted on a base or cap 17 which is disengagably mounted to the valve housing 2. The cap 17 is united with the housing 2 by an external thread on the cap 17 and a matching external thread at the lower extremity of the housing as indicated in Figure 2. An "0" ring or washer 18 is located between the cap and housing 2 to ensure a water-tight fit. The valve seat 10 incorporates a compressible "O" ring 19 against which the valve face 15 seals, the arrangement being such that the "0" ring 19 provides a valve seat which will conform precisely to the face of the valve head thereby ensuring a water-tight fit. The coupling 7 comprises a body of tube section generally indicated by arrow 2 0 which at its valve displacing end generally indicated by arrow 21, is dimensioned so as to be -7- 20505! reciprocal in a snug fit in a socket (not clearly shown in the drawings) defined by the extended side 16 of the valve opening 5. To ensure a water-tight fit between the said socket and coupling body a pair of "O" rings are seated in a groove in the valve displacing end 21 of same. A plurality of fingers 23 extend from the valve displacing end 21 of the coupling body 20 such that the fingers 23 make contact with the valve head 11 and displace the poppet valve 6 when the coupling 7 engages the valve opening 5. An indentation or groove (not clearly shown in the drawings) is provided to seat the tips of the fingers 23 in the valve head 11. The fingers 23 define a plurality of spaces 24 through which a fluid can flow into or out of the tubular body 20 of the coupling 7 when the sealing means 6 is displaced. At the other end of the coupling body to the valve displacing end there is formed a flange 25 over which a flexible fluid conduit (not shown) such as a hose can be attached, such that said hose can direct fluid tapped from the chamber 3 to wherever required. The coupling 7 is releasably connected to the valve housing 2 by means of arms 26 which have engaging members 27 that fit around the extended sides 16 in a firm slidable fit. The engaging members 27 are securable behind lugs op a flange 28 by being aligned with and forced through a channel 29 in the flange 28/ and then once clear of the flange, rotated so that they are held behind the flange 28. -8- 205051 Aspects of the present invention have been described by way of example only and it will be appreciated that modifications and additions thereto may be made without departing from the spirit or scope thereof as defined in the appended claims. -9- </div>

Claims

<div class="application article clearfix printTableText" id="claims"> 205051 WHAT I CLAIM IS:

1. A valve comprising a housing having a chamber with an inlet, an outlet, and a valved opening communicable with the valve chamber, and having a sealing means for sealing off the valved opening, wherein the valved opening has extended sides adapted to receive a coupling which when joined to the valved opening extends into the valve chamber and displaces the sealing means such that fluid within the chamber can flow through the valved opening.

2. A valve as claimed in claim 1 wherein the sealing means comprises a spring mounted valve head and a valve stem supported by a valve guide.

3. A valve as claimed in claim 2 wherein the valve guide is mounted on a removable cap.

4. A valve as claimed in any one of claims 1 to 3 wherein the coupling is releasably engagable with respect to the valved opening.

5. A valve as claimed in claim 4 wherein the coupling is releasably engagable with respect to the valved opening by means of a bayonet fitting. i new zealand "10" 1 ^9JANW87 patent office 205051

6. A valve as claimed in any one of claims 1 to 5 wherein the coupling is provided with a body portion with projects into the valve housing thereby displacing the sealing means when the coupling is connected to the valve housing.

7. A valve as claimed in any one of cliams 1 to 6 wherein the valve outlet is connected to a fluid level control valve.

8. A valve substantially as herein described with reference to and as illustrated by the accompanying drawings. OWEN GRAHAM JOHNSON by his Attorneys BARRY V. JAMES & ASSOCIATES 3«a * •*' OFF ICE J 2CH0V1986 </div>