CA1096841A - Faucets - Google Patents

Faucets

Info

Publication number
CA1096841A
CA1096841A CA321,141A CA321141A CA1096841A CA 1096841 A CA1096841 A CA 1096841A CA 321141 A CA321141 A CA 321141A CA 1096841 A CA1096841 A CA 1096841A
Authority
CA
Canada
Prior art keywords
valve
handle
pair
faucet
valve 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.)
Expired
Application number
CA321,141A
Other languages
French (fr)
Inventor
Brian A.C. Kirk-Duncan
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.)
Kirk Duncan Brian A C
Original Assignee
Kirk Duncan Brian A C
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 Kirk Duncan Brian A C filed Critical Kirk Duncan Brian A C
Priority to CA321,141A priority Critical patent/CA1096841A/en
Priority claimed from CA344,099A external-priority patent/CA1096844A/en
Application granted granted Critical
Publication of CA1096841A publication Critical patent/CA1096841A/en
Expired legal-status Critical Current

Links

Abstract

ABSTRACT OF THE DISCLOSURE

A faucet has a sealing member clamped at its periphery and overlying an orifice through which fluid is to flow.
Pressure applying means maintains the sealing member in seal-ing engagement with the wall defining the orifice. Upon re-moval of the pressure applying means the sealing member moves away from the orifice to permit flow.
The pressure applying means is located in a valve body which is screwed into the faucet housing and acts to change the periphery of the sealing member. The valve body may be removed by removing the handle and engaging a pair of projections within the handle with a pair of ears on the valve body. The sealing member is thus unclamped and easily removed.

Description

This invention relates to devices for controllin~ liquid flow and in particular to faucets for domestic installations.
It is of course known to provide a faucet with a valve to control flow of water into a basin or similar receptical.
The valve members associated with the faucet is usually operated by rotation of a spindle which moves a seal toward and away from a seat.
The seal isusually carried by the spindleand is formed ~ from an elastomericmaterial suchas rubber. ~he spindle is locat-ed within a valvehousing and projects therethrough for connec-tion to a suitable handle. It is therefore necessary to pro-vide suitable seals between the spindle and the valve housing.
Since the seal ls carried on the spindle it is subject to both torsional and compressive strains as it is brought into con-tact with the associated seat, This subjects the seal to rela~
tively rapid wear which causes leaking of the faucet. This causes the faucet to drip which results in anappreciable increase in energy consumption, particularly where the faucet is control-ling a heated water supply, as well as being a source of aggra-vation for the householder.
It is therefore necessaryonareasonably frequent basis tochange the seal member~
This operation has traditionally required the use of skill-ed assistance which is naturally very expensive. Even where the householder possesses the knowledge required to change the seal himself it is necessary for him to possess the correct tools to disassemble the ~aucet. The valve housing of the fau-cet is usually assembled by means of a large nut which means that the average householder does not have a spanner suitable for disassembly. The replacementof the seal memberwhich may itself 684~

only costs a few cents therefore requires the use of skilled lab-our resulting which becomes expensive. This problem is compound-ed in large commercial organizations such as large hotels which utilize many hundreds of taps.
It is an object of the present invention to obviate or mitigate the above disadvantages.
~ ccording to the present invention, then, there is provided a valve assembly for a faucet arranged to be detachably secured in a housing, the valve assembly including a valve body, a valve operating member extending from the body, a handle detachably con-nected to ~he operating member for selective operation thereof, and two pairs of mutually engageable elements, the two elements of one p.air being positioned on opposite sides of the handle and the two elements of the other pair being positioned on opposi~e sides of the valve body whereby upon disengagement of the handle from the operating member and movement of the handle away from the valve body, the elements may be brought into engagement and torque transmitted from the handle to the valve body to facilitate removal thexeof from the housing.
According to a further aspect of the present invention there is provided a faucet having a housing, a valve assembly detachably secured to the housing, the valve assembly including a valve body, a valve operating member extending from the body, a handle detach-ably connected to the operating member for selective operation thereof, and two pairs of axially spaced mutually engageable ele-ments, the two elements of one pair being positioned on opposite sides of the handle and the two elements of the other pair being positioned on opposite sides of the valve body whereby upon dis-engagement of the handle from the operating member and movement of the handle away from the valve body, the elements may be brought into engagement and torque transmitted from the handle to the valve body to facilitate removal thereof from the housing.

- ~2-1~61341 In a pre~erred embodiment of the invention the seal member is mounted in a valve housing separately from the spindle. The seal mem~er is held against rotation and a sealing force impart-ed to the seal member by means of a non-rotatable piston. This avoids subjecting the sealing member to torsional loads.
Also in a preferred embodiment the faucet is provided with a handle that is connected to a rotatable spindle. The handle may be detached and is provided with a pair of inwardly directed projections which er.gage in suitable holes in the valve housing.
This enables the handle to be used as a tool to disassemble the valve housing and permit change of the seal.
Embodiments of the invention will now be described by way of example only with reference to the accompanying drawings, in which:
Figure 1 is a cross-sectional elevation through a faucet in an assembled and sealing position;
Figure 2 is a sectional elevation similar to that shown in Figure 1 with the components arranged to assist in dis-assembly of the faucet;
Figure 3 is a view on the line III-III of Figure l; and ~igure 4 is a scrap view of a portion of a further embodi-ment of a faucet showing alternative positions of the components thereof on opposite sides of the ~igure.
Referring now to Figure 1 a faucet generally designated 10 includes a bod~y 12. The body 12 comprises a tubular threadedpor-tion 14which dependsfrom a valvecavity 16. The valvecavity opens into a spoutportion 18having a suitable discharge nozzle 20.
A valve seat 22 is screwedinto the valve cavity16 through screw threaded portion 14. The valve seat 22 is of frusto-conical shape wh:ich terminates in an annular wall 25 to define an orifice 24.

A check valve 23 is located withink the valve seat 22 and is biased by a light spring (not shown) into a sealing position with the valve seat 22. A spigot 21 is provided on the check valve 23 and extends upwardly into abutment with a sealing mem-ber 36 so that the check valve 23 is normally held open.
An aperture 26 is formed at the opposite side of the valvecavity 16 to the threaded portion 14 to receive a seal support housing 28. The seal support housing 28 comprises a cylindrical body portion 30 and a radially inw~rdly extending flange 32, The flange 32 encompasses the upper portion of the valve seat 22 so that the oriflce 24 lies in the same plane as an upper surface 34 of the flange 32.
~ ealin~ member 36 ~s~supported ~n the upper surface 34 so as to overlie the orifice 24. The sealing member is prefer-ably made from an elastomeric material although any suitable flexible material may be used.
An internal surface 38 of the body portion 30 is threaded to receive a valve assembly 40. The assembly 40 has an valve body 42 which is de~ined by upper and lower interconnected cy-lindrical portions 44, 46 respectively. The lower portion 46 has a thread formed in the outer surface thereof to co-operate with the threaded surface 38 of the body portion 30. The lower portion 46 terminates in annular surface 48 which enyages an upper surface of the seal member 36 and is aligned with the sur-face 34 of the flange 32. The seal member 36 is therefore clam ped between the surfaces 34 and 48 so that rotation thereof is avoided.

The upper portion 44 i5 closed by a partition 50 with a throughbore 52. The partition 50 extends to either side of the upper portion 44 to form a pair of diametrically opposed ears 54~ 56, as can best be seen in ~i~ure 3, Each ear 54, 56 has a throughbore 58, 6Q, respectively.

~.~q68~

A spindle 62 extends through the throughbore 52 and is rotatably secured therein by a circlip 63. The spindle 62 has a large pitch thread 66 formed at one end which extends toward the sealing member 36~ A piston 68 has a mating internal thread-ed surface 70 and is slidingly received within a closed bore 72 in the upper hody portion 46. As can best be seen in Figure 3, the piston 68 and bore 72 have a hexagonal cross-section so that rotation of the piston 68 is prevented.
The piston 68 has a planar end surface 74 which engages the upper surface of the se~l member and overlies the orifice 24.
The opposite end of the spindle 62 to the thread 66 has a series of flats 64 formed thereon, The flats 64 engage in a socket 76 which is integrally ~ormed with a handle 78. The handle 78 has a peripheral wall 80 which extends downwardly toward the upper sur~ace of the seal support housing 2~. The inner surface 81 of the wall 80 has a pair of integrally formed inwardly extending projections 82, 84 thereon, The projections are formed with a radially extending arm 88 and an axially extending arm 90. The pitch circle diameter of the axially extending arms 90 iS the same as the pitch circle diameter of the throughbores 58, 60. The flats 64 are arranged so that with the valve assembly in a closed position the projections 82, 84 are circumferentially displaced from the ears 54, 56 as shown in Figure 3.
The operation of the device is as follows:
The threaded portion 14 is connected to the normal domes-tic water supply so that fluid under pressure is delivered to the interior o~ the v~lve seat 22, The spigot 21 is in abut-ment with the sealing member 36 so that the check v~lve 23 is ~6841 held off its seat. The end surface 74 of the piston 68 forcesthe sealing member into contact with the annular surface 25 of the valve seat so that flow through the orifice 24 is prevent-ed. It will be observed that in this position the piston end surface 74 extends across the ori,fice 24 so that the sealing member is only subject to compressi~e forces in a closed position.
To open the faucet and permit fluid to flow through the orifice and into the spout 18, the handle 78 is turned clock-wise which causes the spindle 62 to rotate clockwise. Since the piston 68 is held against rotation the threads 66 and 70 will co-operate to cause the piston to move axially along the bore 72. The piston end surface 74 is thus moved away from the upper surface of the sealing member 36 which allows the sealing member to ~lex. Fluid pressure therefore moves the sealing member 36 away from the annular surface 25 and permits flow into the SpGUt 18. The spigot 21 still holds the check valve 23 away from its seat since mo~ement of the seal member 36 is insufficient to permit seating~
To close the faucet the handle 78 IS rotated anti-clockwise to move the piston 68 back into the sealing position. It will be noted that the sealing member is not subjected to torsional rotation during opening and closing of the valve since the pis-ton 68 is non-rotatable and the periphery of the sealing member is firmly held between the surfaces 34 and 48.
It will also be noted that the sealing member 36 partitions the val~e assembly from the ~luid, This enables the faucet to be assembled wlthout addItional sealing arrangement around the spindle 62 and improves the flu~d tightness of the faucet, In order to renew the sealing member or to disassemble the faucet, thehandle 78is firstremoved by pulling axially upwards.

-6~

684~

The flats 64 thus are disengaged from the socket 76 and the handle 78 can be removed. The handle 7~ is then posltioned in the manner shown in Figure 2 with the axially ex-tendiny arm 90 engaged in each of the bores 58, 60. The handle 78 can then be twisted to unscrew the valve assembly 40 from the seallng member support housing 28. As the valve assembly is removed the fluid pressure acting on the sealing member 36 forces it away from the upper sur~ace 34 of the flange 32. This permits the check valve 23 to ~eat within the valve seat 22 and prevent flow of fluid through the orif~ce 24, The sealing member 36 may then be readily removed and a new sealing member inserted.
The valve assembly 40 may then be screwed into the seal support housing by using the handle 78 which may then be re-assembled on the spindle 62.
The relative axial positions of the projections 82, 84 and the ears 54, 56 permits full rotation of the handle to accom-plish full opening of th.e faucet. It will be seen therefore that the arrangement disclosed herein perm~ts assembly and dis~
assembly of the faucet w.thout the need for special tools or skilled labour, Figure 4 shows a further arrangement of handle and valve assembly in which pins 110 are located on the upper body portion 44. A ring 112 is secured within the peripheral wall 80. The ring 112 has a pair of diametrically opposed grooves 114, 116 which are dimensioned to pass over the pins 110. As can be seen from the left hand side of Figure 4, when the socket is located on the flats the ring 112 is below the pins 110 to per-mit rotation of the handle, Upon removal of the handle from the spindle~ the pins 110 may be positioned in the grooves 114, 116, as shown in the xight hand side of Figure 4 to permit disassembly of the ~aucet.
The arrangement shown in Figure 4 may be constructed so that it is not necessary to completely detach the handle. The handle may be attached to provide limited axial movement to enable the pins to enga~e the grooves in the manner of a bay-onet fastening.
Further the check valve 23 may be made buoyant and a transverse wire provided to retain the check valve within the threaded portion. A groove may be provided to assist in location of the check valve if desired, It will of course be evident that the particular arrange-ment of sealing member can be used independently of the arrange-ment of the handle. However, by~ com~inin~ the two arrangements the use of sealant to secure the valve assembly within the body is not requlred since the valve ass:em~ly is not exposed to fluid. This enables the torque required to assemble and disassemble the body to be reduced, The danger of the valve assembly becoming corroded into the body is also reduced.
It will also be appreciated that other types of valve operating mechanlsms can be utilized other than rotary members~
such as cams and levers.
Also it is not essential ~or the seal~ng member to be formed from a flexi~le material~ The central position of the sealing member could be ri~Id with the peripheral portions formed with flexible mater~al. Alternatively~ surEaces 34, 48 could be axially spaced so that the sealing member could float between open and closed positions. with such an arrange-ment however, the l1kelihood of leakage and premature wear may be increased~

~8-

Claims (16)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:-
1. A valve assembly for a faucet arranged to be detach-ably secured in a housing, said valve assembly including a valve body, a valve operating member extending from said body, a handle detachably connected to said operating member for selective opera-tion thereof, and two pairs of mutually engageable elements, the two elements of one pair being positioned on opposite sides of the handle and the two elements of said other pair being positioned on opposite sides of the valve body whereby upon disengagement of said handle from said operating member and movement of said handle away from said valve body, said elements may be brought into engagement and torque transmitted from said handle to said valve body to facilitate removal thereof from said housing.
2. A valve assembly according to claim 1 wherein one of said pairs of elements includes a pair of projections and said other pair includes a pair of recesses.
3. A valve assembly according to claim 2 wherein each of said recesses is formed in an ear projecting from said valve body.
4. A valve assembly according to claim 3 wherein each of said recesses in a throughbore.
5. A valve assembly according to claim 2 wherein each of said projections is integrally formed with a peripheral wall of said handle and extends radially inwardly therefrom.
6. A valve assembly according to claim 5 wherein each of said projections has an axially extending arm engageable with said recesses.
7. A faucet having a housing, a valve assembly detach-ably secured to said housing, said valve assembly including a valve body, a valve operating member extending from said body, a handle detachably connected to said operating member for selec-tive operation thereof, and two pairs of axially spaced mutually engageable elements, the two elements of one pair being positioned on opposite sides of the handle and the two elements of said other pair being positioned on opposite sides of the valve body whereby upon disengagement of said handle from said operating member and movement of said handle away from said valve body, said elements may be brought into engagement and torque transmitted from said handle to said valve body to facilitate removal thereof from said housing.
8. A faucet according to claim 7 wherein said handle includes a peripheral wall and said one pair of said elements is integrally formed with an interior surface of said wall.
9. A faucet according to claim 8 wherein each of said one pair of elements includes a pair of members.
10. A faucet according to claim 8 wherein said valve body includes a portion extending upwardly from said housing and said peripheral wall encompasses said upwardly extending portion.
11. A faucet according to claim 10 wherein said other pair of said elements includes a pair of projections extending from said upwardly extending portion.
12. A faucet according to claim 11 wherein said projec-tions are in the form of ears and each has a recess formed therein.
13. A faucet according to claim 12 wherein said recess is a throughbore.
14. A faucet according to claim 10 wherein said one pair of elements includes a pair of inwardly directed projections, diametrically opposed on said wall.
15. A faucet according to claim 14 wherein each of said inwardly directed projections terminates in a downwardly directed arm.
16. A faucet according to claim 7 wherein said valve assembly is threadingly received in said housing.
CA321,141A 1979-02-09 1979-02-09 Faucets Expired CA1096841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA321,141A CA1096841A (en) 1979-02-09 1979-02-09 Faucets

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA321,141A CA1096841A (en) 1979-02-09 1979-02-09 Faucets
CA344,099A CA1096844A (en) 1979-02-09 1980-01-21 Faucets

Publications (1)

Publication Number Publication Date
CA1096841A true CA1096841A (en) 1981-03-03

Family

ID=4113499

Family Applications (1)

Application Number Title Priority Date Filing Date
CA321,141A Expired CA1096841A (en) 1979-02-09 1979-02-09 Faucets

Country Status (1)

Country Link
CA (1) CA1096841A (en)

Also Published As

Publication number Publication date
CA1096841A1 (en)

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