Assembly for securing and sealing a dispenser to a flanged container

A container assembly comprising:

• a container having a neck with an opening for dispensing product, the neck having a generally circular flange symmetric to an axis, said flange including an upper surface surrounding the opening, a cylindrical sidewall about periphery, said sidewall of said flange having a diameter, and said neck including an inwardly directed ledge at the bottom thereof, for each said container the sidewall having a length which may vary within manufacturing tolerances;
• a mounting cup comprising a substantially rigid material, said cup having a substantially continuous cylindrical skirt around its periphery, said skirt having a step protruding radially outwardly with respect to a central axis of said mounting cup, said cup being slideable through a path of movement wherein the central axis of the mounting cup is coincident with the axis of said container flange, said cup being movable to an assembled position;
• a sealing collar comprising a resilient deformable molded polymeric material, said collar having a central opening for receiving said dispenser, said collar having a central axis, said collar being movable through a path of movement wherein said collar axis is coincident with said cup axis and said flange axis, said collar having an annular ring including a floor, said floor being in contact with said upper surface in said assembled position, said collar including a generally cylindrically shaped sleeve depending from said ring, said sleeve having a diameter sized to receive said flange sidewall and sized to be encased by said mounting cup wall, at least a portion of said sleeve having an inner diameter less than said diameter of said flange sidewall to provide an annular area of contact between the sleeve and the flange sidewall and a snug, frictional fit therebetween, said radial step of said mounting cup forcing said collar toward said flange as said cup slides through its path of movement, said sleeve including an end portion protruding radially in said path of movement of said mounting cup, said end portion being deformed radially inwardly under said ledge to secure said sealing collar with respect to said flange, said sleeve having an interior surface consisting essentially of a cylindrical shape adjacent said inwardly directed ledge of said container, said interior surface deforming downwardly and radially inwardly under said ledge, said sleeve accommodating said normal manufacturing tolerances in said sidewall length, said frictional fit between said flange sidewall and said sleeve maintaining said mounting cup, said sealing collar and said bottle flange in a fixed assembled position.

A container assembly comprising

• a container having a neck with an opening for dispensing the product, the neck having a flange surrounding the opening, a sidewall about its periphery, said sidewall of said flange having a diameter, and said neck including an inwardly directed ledge at the bottom thereof, for each said container the sidewall having a length which may vary within manufacturing tolerances;
• a mounting cup comprising a substantially rigid material, said cup having a skirt about at least a portion of its periphery, the cup slideable through a path of movement over the container flange to an assembled position;
• a sealing collar comprising a resilient deformable molded polymeric material, said collar having a central opening for receiving said dispenser, said sealing collar including a sleeve having a diameter sized to receive the flange and sized to be encased by said mounting cup skirt, a portion of said sleeve having an inner diameter less than said diameter of said flange sidewall to provide an annular area of contact between the sleeve and the flange sidewall and a snug, frictional fit therebetween, said sleeve including a camming surface protruding into the path of movement of the mounting cup, said camming surface being forced by said mounting cup to a position under said ledge as the mounting cup moves to an assembled position, said sleeve having an interior surface consisting essentially of a cylindrical shape adjacent said inwardly directed ledge of said container, said interior surface deforming radially inwardly under said ledge, said sleeve accommodating said normal manufacturing tolerances in said sidewall length.

A container assembly comprising:

• a container having a neck with an opening for dispensing product, the neck having a generally circular flange symmetric to a central axis, said flange including an upper surface surrounding the opening, a cylindrical sidewall about periphery, said sidewall of said flange having a diameter, and said neck including an inwardly directed ledge at the bottom thereof, for each said container the sidewall having a length which may vary within manufacturing tolerances;
• a mounting cup comprising a substantially rigid material, said cup having a substantially continuous cylindrical skirt around its periphery, said skirt being symmetrical with respect to a central axis of said mounting cup, said cup being slideable through a path of movement wherein the central axis of the mounting cup is coincident with the axis of said container flange, said cup being movable to an assembled position, said cup including an appearance cover spaced radially outwardly from and secured with respect to the cylindrical skirt, said mounting cup considering essentially of a single piece molded polymeric material;
• and
• a sealing collar comprising a resilient deformable molded polymeric material, said collar having a central opening for receiving said dispenser, said collar having a central axis, said collar being movable through a path of movement wherein said collar axis is coincident with said cup axis and said flange axis, said collar including a generally cylindrically shaped sleeve depending from said ring, said sleeve having a diameter sized to receive said flange sidewall and sized to be encased by said mounting cup wall, at least a portion of said sleeve having an inner diameter less than said diameter of said flange sidewall to provide an annular area of contact between the sleeve and the flange sidewall and a snug, frictional fit therebetween, said mounting cup forcing said collar toward said flange as said cup slides through its path of movement, said sleeve including an end portion protruding radially in said path of movement of said mounting cup, said end portion being deformed radially inwardly under said ledge to secure said sealing collar with respect to said flange, said sleeve having an interior surface consisting essentially of a cylindrical shape adjacent said inwardly directed ledge of said container, said interior surface deforming radially inwardly under said ledge, said sleeve accommodating said normal manufacturing tolerances in said sidewall length, said frictional fit between said flange sidewall and said sleeve maintaining said mounting cup, said sealing collar and said bottle flange in a fixed assembled position.

An assembly for securing and sealing a dispenser with respect to flanged containers comprising:

• a mounting cup comprising a substantially rigid material, said cup having a substantially continuous cylindrical skirt around its periphery, said skirt having a step protruding radially outwardly with respect to a central axis of said mounting cup, said cup being slideable through a path of movement to an assembled position;
• a sealing collar comprising a resilient deformable molded polymeric material, said collar having a central opening, said collar having a central axis, said collar being movable through a path of movement wherein said collar axis is coincident with said cup axis, said collar having an annular ring including a floor, said floor being in contact with said upper surface in said assembled position, said collar including a generally cylindrically shaped sleeve depending from said ring, said sleeve having a diameter sized to be encased by said mounting cup wall, said radial step of said mounting cup forcing said collar radially inwardly as said cup slides through its path of movement, said sleeve including an end portion protruding radially in said path of movement of said mounting cup, said end portion being deformed radially inwardly, said sleeve having an interior surface consisting essentially of a cylindrical shape, said interior surface deforming radially inwardly, said sleeve maintaining said mounting cup and, said sealing collar in a fixed assembled position.

An assembly for securing and sealing a dispenser with respect to flanged containers comprising:

• a mounting cup comprising a substantially rigid material, said cup having a substantially continuous cylindrical skirt around its periphery, respect to a central axis of said mounting cup, said cup being slideable through a path of movement along the central axis of the mounting cup, said cup being movable to an assembled position, said cup including an appearance cover spaced radially outwardly from and secured with respect to the cylindrical skirt, said mounting cup consisting essentially of a single piece molded polymeric material;
• a sealing collar comprising a resilient deformable molded polymeric material, said collar having a central opening, said collar having a central axis, said collar being movable through a path of movement wherein said collar axis is coincident with said cup axis, said collar including a generally cylindrically shaped sleeve depending from said ring, said sleeve having a diameter sized to be encased by said mounting cup wall, said mounting cup forcing said collar radially inwardly as said cup slides through its path of movement, said sleeve including an end portion protruding radially in said path of movement of said mounting cup, said end portion being deformed radially inwardly to secure said sealing collar with respect to said flange, and said sleeve having an interior surface consisting essentially of a cylindrical shape adjacent said inwardly directed ledge of said container, said interior surface deforming radially inwardly.