Coffee cup and method and device for making a coffee cup

Abstract

A kit-of-parts of a cup part and a separate cover together form a coffee cup. The cup part includes bottom wall and a circumferential side wall with a circular flange extending outwardly from an upper end of the side wall. The flange has an outer edge. The cover includes a substantially flat circular central portion configured to engage the upper surface of the cup part and to cover the upper opening. A skirt extends downwardly from the circumference of the central portion and is configured to be bent around the outer edge of the flange. A circular beaded edge defines the end of the skirt, where the beaded edge of the cover extends outwardly from the skirt over a distance the beaded edge being configured to be deformed against an underside of the flange to secure the cover onto the cup part and form the coffee cup.

1 . A kit-of-parts of a cup part and a separate cover which together form a coffee cup, the cup part comprising:
 a bottom wall and a circumferential side wall in the form of a truncated cone which defines a main axis, the circumferential side wall extending from the bottom wall, the bottom wall and the circumferential side wall defining a volume for holding ground coffee, the cup part having an upper opening, the bottom wall being provided with a plurality of holes via which a hot fluid under pressure can enter the coffee cup,   a circular flange extending outwardly from an upper end of the side wall, the flange having an outer edge which has a thickness,   a circular sealing ring of a resilient sealing material which extends around the upper opening and protrudes over a distance above an upper surface of the cup part, the sealing ring being configured to form a seal between the cover and the cup part when the cover and the cup part are joined together,   the cover comprising:   a substantially flat circular central portion configured to engage the upper surface of the cup part and to cover the upper opening, the cover being configured for tearing when the coffee cup is being filled with fluid under pressure,   a skirt extending downwardly from the circumference of the central portion, the skirt having a skirt length, wherein the skirt length is larger than the thickness of the outer edge of the flange, the skirt being configured to be bent around the outer edge of the flange, and   a circular beaded edge defining the end of the skirt, wherein the beaded edge of the cover extends outwardly from the skirt over a distance and does not extend inwardly from the skirt, thereby providing free access of the upper side of the cup part to engage an underside of the central portion of the cover including a corner of the central portion where the central portion meets the skirt, the beaded edge being configured to be deformed against an underside of the flange of the cup part in order to secure the cover onto the cup part and form the coffee cup,   wherein the cup part and the cover are separate items, allowing the cup part to be filled by a user prior to the securing of the cover onto the cup part.   
     
     
         2 . The kit-of-parts of  claim 1 , wherein the cover is manufactured from a single circular piece of aluminium sheet material, in particular without any additional parts or materials, wherein the skirt is formed by bending said circular piece along a circular bending line, and wherein the beaded edge is formed by an outer zone of said circular piece being rolled onto itself, wherein the rolling and the bending have an opposite curvature. 
     
     
         3 .- 9 . (canceled). 
     
     
         10 . The kit-of-parts of  claim 1 , wherein the first sealing ring and the second sealing ring are interconnected via channels which extend through the cup part, wherein said channels are filled with the same resilient material as the material of the first sealing ring and the second sealing ring. 
     
     
         11 . (canceled). 
     
     
         12 . The kit-of-parts of  claim 1 , wherein the cover is manufactured from a piece of aluminium sheet material and the cup part is manufactured from plastic. 
     
     
         13 . The kit-of-parts of  claim 1 , wherein the skirt extends substantially perpendicular to the central portion of the cover. 
     
     
         14 .- 15 . (Canceled). 
     
     
         16 . The kit-of-parts of  claim 1 , wherein the beaded edge has a diameter of 0.6-1.2 mm. 
     
     
         17 .- 18 . (canceled). 
     
     
         19 . The kit-of-parts of  claim 1 , wherein the cup part and the cover are constructed and arranged to be joined after being filled with coffee. 
     
     
         20 . A device for securing the cover of the kit-of parts according to  claim 1  on the cup part of said kit-of-parts, the device comprising a lower part and a top part which are movable relative to one another, the lower part comprising:
 a cup part holder configured for holding a cup part, the cup part holder having an annular support ridge being configured to abut an underside of a flange of the cup part, in particular an annular abutment surface defined by a second sealing ring of the cup part, the cup part holder defining a main axis, 
 a deformer for deforming a beaded edge of a cover in a second deforming step, the deformer comprising an annular deforming ridge which when viewed in the direction of the main axis extends around the annular support ridge and is coaxial with said annular support ridge, 
 wherein the cup part holder is movable relative to the deformer in the direction of the main axis from a first position to a second position, the second position being the flattening position, wherein in the first position the annular support ridge is located at a distance above the annular deforming ridge, and wherein in the second position the annular support ridge is substantially flush with the annular deforming ridge, wherein in the second position the annular deforming ridge bears a force exerted on the cover by the top part, 
 wherein the top part is constructed to be positioned on the lower part and over a cover after a cup part filled with coffee is positioned in the cup part holder and after the cover is positioned on the cup part, the top part comprising a cover holder defining a cavity and the main axis, 
 the cover holder comprising a circular central support surface and a circumferential beaded edge holding wall which extends downwards from the circular central support surface over a holding distance, 
 wherein the beaded edge holding wall is configured to be positioned around the cover which is positioned on the upper surface of a cup part which is positioned in the cup part holder, 
 wherein the beaded edge holding wall is configured to deform the cover in a first deforming step by bending the skirt of the cover inwardly toward the main axis around the outer edge of the flange, the beaded edge being bent inwardly to a position underneath the flange of the cup part, the beaded edge holding wall being configured for preventing the beaded edge from moving back outwardly during the second deforming step, 
 wherein the device further comprises a force mechanism for forcefully pressing the top part against the cup part and the cover which are supported by the lower part, thereby moving the cup part holder relative to the deformer and pressing the annular deforming ridge against the underside of the flange of the cup part, flattening the beaded edge which is present between the annular deforming ridge and the flange and securing the cover onto the cup part. 
 
     
     
         21 . The device according to  claim 20 , wherein the beaded edge holding wall comprises a conical lower part and an upper part having a substantially uniform diameter, the conical lower part having a tapering angle of between 1 and 30 degrees and going over in the upper part wherein the conical lower part acts as a guide for guiding the cover into the upper part and toward the central support surface, the conical lower part being constructed for gradually deforming the skirt by pressing the beaded edge inwardly during the movement of the cover into the cavity and toward the central support surface. 
     
     
         22 .- 23 . (canceled). 
     
     
         24 . The device according to  claim 20 , wherein the device is a hand held device, the lower part being configured to be held by one hand of a user and the top part being configured to be held by the other hand of the user. 
     
     
         25 .- 29 . (canceled). 
     
     
         30 . A method of making a completed coffee cup, the method comprising:
 providing the device according to  claim 20  for securing a cover on a cup part of a coffee cup,   providing the kit-of parts of a cup part and a separate cover,   filling the cup part with coffee,   positioning the cup part in the cup part holder,   positioning the cover on the cup part,   positioning the top part onto the bottom part and deforming the cover in a first deforming step, wherein the skirt is bent around an outer edge of the flange and the beaded edge is moved inwardly toward the main axis and underneath the flange, and   deforming the cover in a second deforming step, wherein the annular deforming ridge is pressed against the underside of the flange, wherein the beaded edge is flattened against the underside of the flange of the cup part, wherein the beaded edge holding wall prevents the beaded edge from moving outwardly, and wherein the cover is secured onto the cup part.   
     
     
         31 . The method according to  claim 30 , wherein the cover is secured onto the cup part without the use of any glue or adhesive tape or separate filter paper. 
     
     
         32 .- 40 . (canceled). 
     
     
         41 . A cover for a coffee cup, the cover comprising:
 a substantially flat circular central portion configured to engage an upper surface of a cup part of a coffee cup and to cover an upper opening of said coffee cup, the cover being configured for tearing when the coffee cup is being filled with fluid under pressure,   a skirt extending downwardly from the circumference of the central portion, the skirt having a skirt length, wherein the skirt length is larger than the thickness of the outer edge of the flange, the skirt being configured to be bent around the outer edge of the flange, and   a circular beaded edge defining the end of the skirt, wherein the beaded edge of the cover extends outwardly from the skirt over a distance and does not extend inwardly from the skirt, thereby providing free access of the upper surface of the cup part to engage an underside of the central portion of the cover including the corner of the central portion where the central portion meets the skirt, the beaded edge being configured to be deformed against an underside of the flange of the cup part in order to secure the cover onto the cup part and form the coffee cup.   
     
     
         42 . The cover of  claim 41 , wherein the cover is manufactured from a single circular piece of aluminium sheet material, in particular without any additional parts or materials, wherein the skirt is formed by bending said circular piece along a circular bending line, and wherein the beaded edge is formed by an outer zone of said circular piece being rolled onto itself, wherein the rolling and the bending have an opposite curvature. 
     
     
         43 . The cover of  claim 41 , wherein the piece has a diameter of 45-55 mm, wherein the outer zone has a width of 2-5 mm. 
     
     
         44 .- 61 . (canceled).