CA1050488A - Liquid soap injection cartridge - Google Patents
Liquid soap injection cartridgeInfo
- Publication number
- CA1050488A CA1050488A CA287,830A CA287830A CA1050488A CA 1050488 A CA1050488 A CA 1050488A CA 287830 A CA287830 A CA 287830A CA 1050488 A CA1050488 A CA 1050488A
- Authority
- CA
- Canada
- Prior art keywords
- liquid soap
- refill
- dispenser
- discharge outlet
- neck
- 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
Links
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- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
ABSTRACT
A liquid soap injection cartridge for use in a liquid soap dispenser, said cartridge comprising a liquid soap refill container having a cylindrical discharge outlet and being adapted for expelling liquid soap therefrom under greater than ambient pressure, a membrane on said refill container normally closing said discharge outlet to prevent the passage of liquid soap therethrough, said membrane being adapted to receive the piercing member of an associated liquid soap dispenser in piercing relationship therethrough and into said discharge outlet with said discharge outlet encircling the refill aperture of the associated dispenser, whereby to permit liquid soap under greater than ambient pressure to flow from said refill container and through the refill aperture of the associated dispenser.
A liquid soap injection cartridge for use in a liquid soap dispenser, said cartridge comprising a liquid soap refill container having a cylindrical discharge outlet and being adapted for expelling liquid soap therefrom under greater than ambient pressure, a membrane on said refill container normally closing said discharge outlet to prevent the passage of liquid soap therethrough, said membrane being adapted to receive the piercing member of an associated liquid soap dispenser in piercing relationship therethrough and into said discharge outlet with said discharge outlet encircling the refill aperture of the associated dispenser, whereby to permit liquid soap under greater than ambient pressure to flow from said refill container and through the refill aperture of the associated dispenser.
Description
~S0488 This application is a divisional application of our co-pending application No. 254,033.
The present invention relates t~ a liquid soap injection cartridge for use in refilling a liquid soap dispenser.
There are currently known various types of liquid soap dispensers.
The supplier of the dispensing apparatus may also supply the liquid s~ap to be dispensed therefrom and, indeed, economically speaking, the sale of soap for the dispensing appar-atus typically constitutes a most significant portion of thebusiness. In addition, it is important that the supplier of the dispenser be able to control the type and quality of soap being dispensed therefrom, in order to insure that the dispenser will operate properly. However, prior art dispensers have had soap refill apparatus which permits anyone having access thereto to ; refill the dispenser with any type of liquid soap, whether or not supplied by the supplier of the dispenser, thus not only adversely affecting the volume of liquid soap sold by the supplier- but also rendering it impossible for the supplier to monitor the quality of the soap being dispensed, thereby aggravating mainte-nance problems.
Accordingly, the present invention provides a liquid soap injection cartridge for use in refilling a liquid soap dis-penser having a piercing member and closely adjacent thereto a refill aperture dimensioned sv that at ambient pressure liquid soap flows therethrough by gravity only very slowly if at all, said cartridge comprising a liquid soap refill container having a cylindr~cal discharge outlet and being adapted for expeIling liquid soap therefrom under greater than ambient pressure, a mem-brane on said refill container normally closing said dischargeoutlet to prevent the passage of liquid soap therethrough, said -1- ~
~LQ5048~
membrane being adapted to receive :the piercing member of an asso-ciated liquid soap dispenser in piercing relationship therethrough and into said discharge outlet,with said discharge outlet encir-cling the refill aperture of the :associated dispenser, whereby to :' permit liquid soap under greater than ambient pressure to flow from said refill container and through the refill aperture of the associated dispenser.
The invention will best be understood by reference to the'following specification taken in connection with the accompan~
ing drawings.
In the drawings:
Figure'l is a front perspective view of.a liquid soap dispenser;
.; Figure 2:is a view in verti:cal section lllustrating , the internal construction of the soap dispenser;
Figure 3 is a rear perspective view of the liquid soap container shown with the cover plate removed;
Figure'4 is a side'elevational view of a soap refill .1 bottle constructed in accordance with and embodying features of the present:invention', for use:in refilling the liquid soap dispenser of Figure l;
` Figure 5 is a bottom plan view of the soap refill bottle of Figure 4;
, Figure 6 is an enlarged fragmentary view in vertical section taken along the line:6-6 in Figure 5;
Figure 7 is an enla,rged top plan view of the liquid soap container of Figure.3;
Fi~ure 8 is a fragmentary side. ele~ational. view of the soap refill weLl o the liquid soap container of Figure.7, illustrating~the'cooperation thereof:with the soap refill bottle during a refill operation;
The present invention relates t~ a liquid soap injection cartridge for use in refilling a liquid soap dispenser.
There are currently known various types of liquid soap dispensers.
The supplier of the dispensing apparatus may also supply the liquid s~ap to be dispensed therefrom and, indeed, economically speaking, the sale of soap for the dispensing appar-atus typically constitutes a most significant portion of thebusiness. In addition, it is important that the supplier of the dispenser be able to control the type and quality of soap being dispensed therefrom, in order to insure that the dispenser will operate properly. However, prior art dispensers have had soap refill apparatus which permits anyone having access thereto to ; refill the dispenser with any type of liquid soap, whether or not supplied by the supplier of the dispenser, thus not only adversely affecting the volume of liquid soap sold by the supplier- but also rendering it impossible for the supplier to monitor the quality of the soap being dispensed, thereby aggravating mainte-nance problems.
Accordingly, the present invention provides a liquid soap injection cartridge for use in refilling a liquid soap dis-penser having a piercing member and closely adjacent thereto a refill aperture dimensioned sv that at ambient pressure liquid soap flows therethrough by gravity only very slowly if at all, said cartridge comprising a liquid soap refill container having a cylindr~cal discharge outlet and being adapted for expeIling liquid soap therefrom under greater than ambient pressure, a mem-brane on said refill container normally closing said dischargeoutlet to prevent the passage of liquid soap therethrough, said -1- ~
~LQ5048~
membrane being adapted to receive :the piercing member of an asso-ciated liquid soap dispenser in piercing relationship therethrough and into said discharge outlet,with said discharge outlet encir-cling the refill aperture of the :associated dispenser, whereby to :' permit liquid soap under greater than ambient pressure to flow from said refill container and through the refill aperture of the associated dispenser.
The invention will best be understood by reference to the'following specification taken in connection with the accompan~
ing drawings.
In the drawings:
Figure'l is a front perspective view of.a liquid soap dispenser;
.; Figure 2:is a view in verti:cal section lllustrating , the internal construction of the soap dispenser;
Figure 3 is a rear perspective view of the liquid soap container shown with the cover plate removed;
Figure'4 is a side'elevational view of a soap refill .1 bottle constructed in accordance with and embodying features of the present:invention', for use:in refilling the liquid soap dispenser of Figure l;
` Figure 5 is a bottom plan view of the soap refill bottle of Figure 4;
, Figure 6 is an enlarged fragmentary view in vertical section taken along the line:6-6 in Figure 5;
Figure 7 is an enla,rged top plan view of the liquid soap container of Figure.3;
Fi~ure 8 is a fragmentary side. ele~ational. view of the soap refill weLl o the liquid soap container of Figure.7, illustrating~the'cooperation thereof:with the soap refill bottle during a refill operation;
-2-. ~ .
hl:~SV488 Figure 9 is a further enlarged fragmentary top plan view of the soap refill well of the liquid soap container of Figure 7;
Figure 10 is a fragmentary view in vertical section taken along the line 10-10 in Figure 9; and Figure 11 is a view like Figure 10, showing the re-fill bottle in engagement in the refill well during a refill operation.
Referring now to Figures 1 through 3 of the drawings, there is illustrated a soap dispenser, generally designated by the numeral 100. The soap dispenser 100 includes a mounting bracket, generally designated by the numeral 101.
In use, the mounting bracket 101 is mounted on a wall 50, generally above and closely adjacent to a sink or washbasin or the like.
The dispenser 100 includes a soap container or housing, generally designated by the' numeral 130, which is preferably for~d of plastic. The container 130 is generally box-like in configura-tion and includes a generally rectangular front wall l3I, a pair of opposed side walls 132, a rear wall 133 and a rectangular bottom wall 135, the container 130 preferably being molded so that the walls 131, 132, 133'and 135 are all formed integrally with one another.
The container 130 is also provided with a top wall 170 which is fixedly secured to the upper ends of the container walls 131, 132 and 133. F~rmed in the top wall 170 is a deep cylindrical depending well, generally designated by the numeral 175, which is provid~d with a generally cylindrical side wall 174 closed at the bottom end thereof by a circular bottom wall 176.
The inner surface of the side wall 174 has an upper substantially right circular cylindrical portion 178 (Figure 10) and a lower downwardly and inwardly sloping frustoconical portion 177, the ~
portions 177 and 178 intersecti~g at a circular line 179 substan-tially midway between the upper and lower ends of the weIl 175.
. . ' :
~050488 Integral with the bottom wall 176 of the well 175 and projecting upwardl~ therefrom :substantially centrally thereof is a percing member, generally designated by the numeral 180, which comprises a cruciform arrangement of four.flat blades or webs 181, respectively provided with knife edges 182 (Figure 9) along the upper edges thereof which are inclinea upwardly and in-wardly to intersect at a point 183 a slight distance above the level of the dividing line 17.9. Formed in the bottom wall 176 and disposed between adjacent ones of.the blades 181 are four groups of refill perforations.or aper*ures 184 which extend through the bottom wall 176. Each of the refill apertures 184 has a cross sectional area such that liquid soap of the type to be dispensed from the dispenser 100 will not pass through the refill apertures 184 by gravity alone or, at best, will pass .~ only very slowly therethrough.
:i The walls of the: container 130 cooperate to define therewithin a soap chamber, generally designated by the numeral 140 which',' in use, is filled with:liquid soap 141 to a predeter-I mined level, such as 142.' ¦ 20 Mounted below.the bottom wall 135 of the container 1~0 is a pump assembly, generally designate~ by the numeral 150.
The pump assembly 150 includes an operating handle 151 provided with a pivot pin 152,. the:opposite ends of which'are.respectively . mounted in the'pivot'brackets 122:on mounting bracket wall 120 :1~ for pivotal'movement of'the operating 'nandle'151 about:the axis of the pin 152,: which extends -subs:tantially hbrizontally above the bracket wall 120.subs:tantially paralleI thereto and to the bracket wall.: 102. The handle'151 projects: in use'downwardly : through opening 123 in the bracket wall 120 and.. terminates at the lower end.thereof'in an enlarged-gripping pOrtiQn 153.' . - ~ . . . . . . . , . , , . . ~ . :
S(~48~
The container 130 is mounted on the mounting bracket 101. The dispenser 100 is also provided with a cover plate, generally designated by the numeral 190. The cover plate 190 is dimensioned so as to completely cover the top wall 170 of the container 130.
In operation, when a user wishes to dispense soap from the dispenser 100, he pulls the handle 151 forwardly, in the direction of the arrow in Figure 2, which brings the actuat-ing arm 155 into engagement with the bowl 168 of pump assembly 150 and compresses it to force the liquid soap contained therein upwardly through supply opening 149 and recess 144 and outwardly through discharge opening 146, and thence outwardly through the delivery conduit 158 and mounting bracket opening 125 to the hands of the user.
Referring now also to Figures 4 through 11 of the dr~-ings, there is illustrated a refill cartridge or bottle, gener~ly designated by the numeral 200, for use with the dispenser 100 to provide a complete liquid soap dispensing system. The refill bottle 200 is preferably in the form of a soft plastic squeeze-bottle and is adapted to hold a refill or supply of liquid soap for refilling the soap container 130 of the dispenser 100. The refill bottle 200 includes an elongated right circular cylindric-al side wall 201 closed at one end thereof by a circular bottom wall 202, and having integrally connected thereto at the other end thereof an inwardly sloping frustoconical top wall 203 which terminates in a flat annular flange 204. Integral wi*h the annular flangè 204 at the inner edge thereof and extending there-from coaxially with the cylindrical side wall ~01 is a short cyl-indrical shoulder 205 which is substantially thicker and more rigid than the walls 201 through 203. Integral with the shoulder 205 at the distal end thereof is a radially inwardly extending annular flange 206 which:is integral at the inner edge:thereof with an eIongated. cylindrical neck 207 ¢oaxial with the side wall 201,: but being reIatively thick-walled and substantially rigid, the neck 207 defining a cylindrical discharge passage 208 communicating with the inte:rior of *he refill bottle'200.
Integral with the outer.surface of the neck 207 and extending radially outwardly therefrom is a first annular rib or flange'2I0 and a plurality of second annular ribs or flanges 212. The first flange 2I0 is.dis.posed closeIy adjacent to the distal end of the neck 207, and is spaced from the nearest one of the second flanges 212 by a first space.211 extending axially of the neck 207 a relatively long.first predetermined distance. The second flanges 2I2 are equidistantl~ spaced apart from one another by second predetermined spaces 2I3,: each of which has an axial extent subs*antially less than that of.the space 211. Adhesively .., secured to the'neck 207 at the.distal end thereof and closing ~i the'discharge passage 208 is a reIativeIy thin circular membrane '1 215 impermeable to the liquid.soap and which is secured across , the distal. end of the neck.20.7 after the refill bottle 200 is fil-'~. 20 led with.liquid soap to prevent.the'soap from escaping from the ~ refill bottle 200.
,, When it is desired to refill the soap.cont~ainer 130 of .,i the dispenser lOO,,the cover plate l90 is~unlocked and removed to 'j expose the.'refill weIl 175.. The neck 207 of the:refill: bo,ttle '~ 200 is then inserted into the weIl 175 of the soap container 130, A as best illustrated in Figures l.0 and ~. In this regard, it will ,~ be noted.that the maximum oute.r diameter of the flanges 2I0 and 2I2- are.::s.u~stantially equal to the diameter~of the cylindrical inner :surface::portion 177 of the weIl side wall 174.so as to be:
~; - 30 disposed:in~frict'ional engageme~t..therewith as:the'neck:207 is inserted into the weIl 175. As the'flange~'2I0 and the first ~of ' .;. . . - - -.. : , Q~88 the flanges 212 come into contact with the inwardly sloping frustoconical portion 178 of the inner surface of the well side wall 174, the frictional interference therebetween becomes greater.
However, the flanges 210 and 2I2, while being relatively rigid, are suffici~ntly flexible and resilient to permit insertion of the neck 207 all the way into the well 205 until the distal end of the neck 207 contacts the bottom wall 176 of the well 175.
It will be noted that the neck 207 is of such a length that, when the membrane 215 is in engagement with the bottom wall 176 of the well 175, the shoulder 205 is in engagement with the upper surface of the container top wall 170 around the periphery of the well 175. As the neck 207 is inserted into the well 175, the point 181 of the piercing member 180 ~ ~ces and ruptures the membrane 2I5 closing the neck 207 of the injection bottle 200, the piercing member 180 having a maximum outer di'ameter such that it is received into the discharge passage 208 of the neck 207.
When the membrane 215 is thus ruptured, the liquid soap within the injection bottle 200 is permitted to flow therethrough around the'piercing member 180 and to the refill apertures 184.
Z0 As was indicated above, the liquid soap will not flow through the apertures 184 by gravity. Thus, in order to inject the liquid soap through the refill apertures 184 and into the chamber 140, the'refill bottle is ~squeezed, thereby applying grea~
er than ambient pressure to the liquid soap therein and forcing it through'the refill apertures 184. By reason of the interfer-ence fit between the inner surface of the weIl side wall 174 and the flanges 2I0 and 212 of the refill bottle neck 2Q7, these members cooperate to form a substantially fluid-tight seal which prevents the liquid soap from flowing outwardly around the neck 207 and out of the weIl 175. When the refill bottle 200 has been emptied, it is removed from the weIl 175 and the cover plate 190 ~ ~S0488 . is locked back in place.
. Thus, it will be: appreciated that by reason of this unique refill arrangement, the:soap container 130 may not be re-filled except by the use of the special refill bottle 200 which is designed to uniquely cooperate with the weIl.175. This will effectively prevent a user of the dispenser 100 from using there-in any soap other than that provided by the supplier of the dis-penser 100. It will be noted.*hat the piercing member 180 extends only a very slight distance above the frustoconical inner 10 wall portion 178 of the well si:de wall 174. Thus, when the neck 207 has been inserted into the:weI1 175 a sufficient distance from the p~rcing member 180.to pierce the membrane 215, the first annular flange 210 of the :neck 207 will already be coming into engagement with the frustoconical portion 178 of the inner sur-face of the well side wall 174.to form an effective fluid-tight seal. Thus, while normally the~neck 207 will be inserted into the:weI1 175 in one quick continuous:motion, even if the:neck 207 should be momentarily stopped in a position half way down the well 175, there will be no leakage of liq~id ~oap from the well 175.
., .
. .
. , .
,, :
... . . .
hl:~SV488 Figure 9 is a further enlarged fragmentary top plan view of the soap refill well of the liquid soap container of Figure 7;
Figure 10 is a fragmentary view in vertical section taken along the line 10-10 in Figure 9; and Figure 11 is a view like Figure 10, showing the re-fill bottle in engagement in the refill well during a refill operation.
Referring now to Figures 1 through 3 of the drawings, there is illustrated a soap dispenser, generally designated by the numeral 100. The soap dispenser 100 includes a mounting bracket, generally designated by the numeral 101.
In use, the mounting bracket 101 is mounted on a wall 50, generally above and closely adjacent to a sink or washbasin or the like.
The dispenser 100 includes a soap container or housing, generally designated by the' numeral 130, which is preferably for~d of plastic. The container 130 is generally box-like in configura-tion and includes a generally rectangular front wall l3I, a pair of opposed side walls 132, a rear wall 133 and a rectangular bottom wall 135, the container 130 preferably being molded so that the walls 131, 132, 133'and 135 are all formed integrally with one another.
The container 130 is also provided with a top wall 170 which is fixedly secured to the upper ends of the container walls 131, 132 and 133. F~rmed in the top wall 170 is a deep cylindrical depending well, generally designated by the numeral 175, which is provid~d with a generally cylindrical side wall 174 closed at the bottom end thereof by a circular bottom wall 176.
The inner surface of the side wall 174 has an upper substantially right circular cylindrical portion 178 (Figure 10) and a lower downwardly and inwardly sloping frustoconical portion 177, the ~
portions 177 and 178 intersecti~g at a circular line 179 substan-tially midway between the upper and lower ends of the weIl 175.
. . ' :
~050488 Integral with the bottom wall 176 of the well 175 and projecting upwardl~ therefrom :substantially centrally thereof is a percing member, generally designated by the numeral 180, which comprises a cruciform arrangement of four.flat blades or webs 181, respectively provided with knife edges 182 (Figure 9) along the upper edges thereof which are inclinea upwardly and in-wardly to intersect at a point 183 a slight distance above the level of the dividing line 17.9. Formed in the bottom wall 176 and disposed between adjacent ones of.the blades 181 are four groups of refill perforations.or aper*ures 184 which extend through the bottom wall 176. Each of the refill apertures 184 has a cross sectional area such that liquid soap of the type to be dispensed from the dispenser 100 will not pass through the refill apertures 184 by gravity alone or, at best, will pass .~ only very slowly therethrough.
:i The walls of the: container 130 cooperate to define therewithin a soap chamber, generally designated by the numeral 140 which',' in use, is filled with:liquid soap 141 to a predeter-I mined level, such as 142.' ¦ 20 Mounted below.the bottom wall 135 of the container 1~0 is a pump assembly, generally designate~ by the numeral 150.
The pump assembly 150 includes an operating handle 151 provided with a pivot pin 152,. the:opposite ends of which'are.respectively . mounted in the'pivot'brackets 122:on mounting bracket wall 120 :1~ for pivotal'movement of'the operating 'nandle'151 about:the axis of the pin 152,: which extends -subs:tantially hbrizontally above the bracket wall 120.subs:tantially paralleI thereto and to the bracket wall.: 102. The handle'151 projects: in use'downwardly : through opening 123 in the bracket wall 120 and.. terminates at the lower end.thereof'in an enlarged-gripping pOrtiQn 153.' . - ~ . . . . . . . , . , , . . ~ . :
S(~48~
The container 130 is mounted on the mounting bracket 101. The dispenser 100 is also provided with a cover plate, generally designated by the numeral 190. The cover plate 190 is dimensioned so as to completely cover the top wall 170 of the container 130.
In operation, when a user wishes to dispense soap from the dispenser 100, he pulls the handle 151 forwardly, in the direction of the arrow in Figure 2, which brings the actuat-ing arm 155 into engagement with the bowl 168 of pump assembly 150 and compresses it to force the liquid soap contained therein upwardly through supply opening 149 and recess 144 and outwardly through discharge opening 146, and thence outwardly through the delivery conduit 158 and mounting bracket opening 125 to the hands of the user.
Referring now also to Figures 4 through 11 of the dr~-ings, there is illustrated a refill cartridge or bottle, gener~ly designated by the numeral 200, for use with the dispenser 100 to provide a complete liquid soap dispensing system. The refill bottle 200 is preferably in the form of a soft plastic squeeze-bottle and is adapted to hold a refill or supply of liquid soap for refilling the soap container 130 of the dispenser 100. The refill bottle 200 includes an elongated right circular cylindric-al side wall 201 closed at one end thereof by a circular bottom wall 202, and having integrally connected thereto at the other end thereof an inwardly sloping frustoconical top wall 203 which terminates in a flat annular flange 204. Integral wi*h the annular flangè 204 at the inner edge thereof and extending there-from coaxially with the cylindrical side wall ~01 is a short cyl-indrical shoulder 205 which is substantially thicker and more rigid than the walls 201 through 203. Integral with the shoulder 205 at the distal end thereof is a radially inwardly extending annular flange 206 which:is integral at the inner edge:thereof with an eIongated. cylindrical neck 207 ¢oaxial with the side wall 201,: but being reIatively thick-walled and substantially rigid, the neck 207 defining a cylindrical discharge passage 208 communicating with the inte:rior of *he refill bottle'200.
Integral with the outer.surface of the neck 207 and extending radially outwardly therefrom is a first annular rib or flange'2I0 and a plurality of second annular ribs or flanges 212. The first flange 2I0 is.dis.posed closeIy adjacent to the distal end of the neck 207, and is spaced from the nearest one of the second flanges 212 by a first space.211 extending axially of the neck 207 a relatively long.first predetermined distance. The second flanges 2I2 are equidistantl~ spaced apart from one another by second predetermined spaces 2I3,: each of which has an axial extent subs*antially less than that of.the space 211. Adhesively .., secured to the'neck 207 at the.distal end thereof and closing ~i the'discharge passage 208 is a reIativeIy thin circular membrane '1 215 impermeable to the liquid.soap and which is secured across , the distal. end of the neck.20.7 after the refill bottle 200 is fil-'~. 20 led with.liquid soap to prevent.the'soap from escaping from the ~ refill bottle 200.
,, When it is desired to refill the soap.cont~ainer 130 of .,i the dispenser lOO,,the cover plate l90 is~unlocked and removed to 'j expose the.'refill weIl 175.. The neck 207 of the:refill: bo,ttle '~ 200 is then inserted into the weIl 175 of the soap container 130, A as best illustrated in Figures l.0 and ~. In this regard, it will ,~ be noted.that the maximum oute.r diameter of the flanges 2I0 and 2I2- are.::s.u~stantially equal to the diameter~of the cylindrical inner :surface::portion 177 of the weIl side wall 174.so as to be:
~; - 30 disposed:in~frict'ional engageme~t..therewith as:the'neck:207 is inserted into the weIl 175. As the'flange~'2I0 and the first ~of ' .;. . . - - -.. : , Q~88 the flanges 212 come into contact with the inwardly sloping frustoconical portion 178 of the inner surface of the well side wall 174, the frictional interference therebetween becomes greater.
However, the flanges 210 and 2I2, while being relatively rigid, are suffici~ntly flexible and resilient to permit insertion of the neck 207 all the way into the well 205 until the distal end of the neck 207 contacts the bottom wall 176 of the well 175.
It will be noted that the neck 207 is of such a length that, when the membrane 215 is in engagement with the bottom wall 176 of the well 175, the shoulder 205 is in engagement with the upper surface of the container top wall 170 around the periphery of the well 175. As the neck 207 is inserted into the well 175, the point 181 of the piercing member 180 ~ ~ces and ruptures the membrane 2I5 closing the neck 207 of the injection bottle 200, the piercing member 180 having a maximum outer di'ameter such that it is received into the discharge passage 208 of the neck 207.
When the membrane 215 is thus ruptured, the liquid soap within the injection bottle 200 is permitted to flow therethrough around the'piercing member 180 and to the refill apertures 184.
Z0 As was indicated above, the liquid soap will not flow through the apertures 184 by gravity. Thus, in order to inject the liquid soap through the refill apertures 184 and into the chamber 140, the'refill bottle is ~squeezed, thereby applying grea~
er than ambient pressure to the liquid soap therein and forcing it through'the refill apertures 184. By reason of the interfer-ence fit between the inner surface of the weIl side wall 174 and the flanges 2I0 and 212 of the refill bottle neck 2Q7, these members cooperate to form a substantially fluid-tight seal which prevents the liquid soap from flowing outwardly around the neck 207 and out of the weIl 175. When the refill bottle 200 has been emptied, it is removed from the weIl 175 and the cover plate 190 ~ ~S0488 . is locked back in place.
. Thus, it will be: appreciated that by reason of this unique refill arrangement, the:soap container 130 may not be re-filled except by the use of the special refill bottle 200 which is designed to uniquely cooperate with the weIl.175. This will effectively prevent a user of the dispenser 100 from using there-in any soap other than that provided by the supplier of the dis-penser 100. It will be noted.*hat the piercing member 180 extends only a very slight distance above the frustoconical inner 10 wall portion 178 of the well si:de wall 174. Thus, when the neck 207 has been inserted into the:weI1 175 a sufficient distance from the p~rcing member 180.to pierce the membrane 215, the first annular flange 210 of the :neck 207 will already be coming into engagement with the frustoconical portion 178 of the inner sur-face of the well side wall 174.to form an effective fluid-tight seal. Thus, while normally the~neck 207 will be inserted into the:weI1 175 in one quick continuous:motion, even if the:neck 207 should be momentarily stopped in a position half way down the well 175, there will be no leakage of liq~id ~oap from the well 175.
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Claims (5)
1. A liquid soap injection cartridge for use in re-filling a liquid soap dispenser having a piercing member and closely adjacent thereto a refill aperture dimensioned so that at ambient pressure liquid soap flows therethrough by gravity only very slowly if at all, said cartridge comprising a liquid soap refill container having a cylindrical discharge outlet and being adapted for expelling liquid soap therefrom under greater than ambient pressure, a membrane on said refill container normally closing said discharge outlet to prevent the passage of liquid soap therethrough, said membrane being adapted to receive the piercing member of an associated liquid soap dispenser in pierc-ing relationship therethrough and into said discharge outlet with said discharge outlet encircling the refill aperture of the asso-ciated dispenser, whereby to permit liquid soap under greater than ambient pressure to flow from said refill container and through the refill aperture of the associated dispenser.
2. The liquid soap injection cartridge set forth in claim 1, wherein said refill container comprises a soft plas-tic squeeze bottle.
3. The liquid soap injection cartridge according to claim 1, wherein the liquid soap dispenser has a refill well including a generally cylindrical side wall portion closed at the inner end thereof by a circular inner wall portion which has said refill aperture therethrough, said cartridge having annular seal-ing means projecting radially outwardly from said cylindrical discharge outlet and being dimensioned and adapted to be received in the wall of an associated dispenser in encircling relationship with the refill aperture thereof and with said sealing means dis-posed in sealing engagement with the cylindrical side wall portion of the associated well, whereby liquid soap may flow from said refill container under greater than ambient pressure through the refill aperture of the associated dispenser while being prevented by said sealing means from flowing around said outlet neck and out of the well of the associated dispenser.
4. The liquid soap injection cartridge set forth in claim 3, wherein said outlet neck includes a plurality of axially spaced-apart annular sealing flanges extending radially outwardly therefrom, the axial distance between the first and second ones of said annular sealing flanges closest to the distal end of said neck being greater than the axial distance between the others of said annular sealing flanges.
5. The liquid soap injection cartridge set forth in claim 1, wherein said liquid soap refill container includes an annular radially outwardly extending stop flange at the base of said cylindrical discharge outlet positioned for engagement with an associated liquid soap dispenser around the periphery of the associated well when the distal end of said outlet neck is in engagement with the inner wall portion of the well.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT19848/76A IT1061006B (en) | 1976-02-03 | 1976-02-03 | SOAP DISPENSER |
| CA254,033A CA1029340A (en) | 1976-02-03 | 1976-06-03 | Soap dispensing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1050488A true CA1050488A (en) | 1979-03-13 |
Family
ID=25668299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA287,830A Expired CA1050488A (en) | 1976-02-03 | 1977-09-30 | Liquid soap injection cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1050488A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10391509B2 (en) | 2014-05-22 | 2019-08-27 | Colgate-Palmolive Company | Pump dispenser and system comprising a refill cartridge and the pump dispenser |
-
1977
- 1977-09-30 CA CA287,830A patent/CA1050488A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10391509B2 (en) | 2014-05-22 | 2019-08-27 | Colgate-Palmolive Company | Pump dispenser and system comprising a refill cartridge and the pump dispenser |
| US10850291B2 (en) | 2014-05-22 | 2020-12-01 | Colgate-Palmolive Company | Pump dispenser and system comprising a refill cartridge and the pump dispenser |
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