A paper cup for use in vending machines comprises at least one inner groove on its inner surface and at least one outer groove on its outer surface.

Temporarily mutually connectable cups for efficiently serving all kinds of beverages and foods such as granular food, crisps, sauces, soup, and yoghurt. The cups have special fully integrated hook elements in the cup wall or on the handles with stabilizing thumb holding parts and the wall (2) has a thickness d. With the integrated hook elements several surrounding cups are temporarily mutually connected with a central cup to form a group of serving cups, facilitating the carrying of the cups by a waiter or waitress.

Temporarily mutually connectable cups for efficiently serving all kinds of beverages and foods such as granular food, crisps, sauces, soup, and yoghurt. The cups have special fully integrated hook elements in the cup wall or on the handles with stabilizing thumb holding parts and the wall (2) has a thickness d. With the integrated hook elements several surrounding cups are temporarily mutually connected with a central cup to form a group of serving cups, facilitating the carrying of the cups by a waiter or waitress.

A mixing bowl with protuberances one the outer surface of the side wall of the bowl. A first mixing bowl has a diameter greater than a second mixing bowl. The two bowls form a mixing bowl assembly wherein the protuberances of the inner bowl contact and abut the inner surface of the outer bowl to define a clearance gap between the two bowls, wherein if the bowls cool at different rates after being washed, the mixing bowls are not jammed together. Each protuberance extends outwardly about one-fourth inch and the gap defined between the bowls has a clearance dimension of about one-fourth inch. The inner bowl has three or four protuberances and the outer bowl has four protuberances. The mixing bowls are made of stainless steel.

A mixing bowl with protuberances one the outer surface of the side wall of the bowl. A first mixing bowl has a diameter greater than a second mixing bowl. The two bowls form a mixing bowl assembly wherein the protuberances of the inner bowl contact and abut the inner surface of the outer bowl to define a clearance gap between the two bowls, wherein if the bowls cool at different rates after being washed, the mixing bowls are not jammed together. Each protuberance extends outwardly about one-fourth inch and the gap defined between the bowls has a clearance dimension of about one-fourth inch. The inner bowl has three or four protuberances and the outer bowl has four protuberances. The mixing bowls are made of stainless steel.

A stackable drinking cup has a frustoconical body with a sipping straw formed in the conical side. The inlet at the bottom of the cup has a greater cross-section than the outlet in the mouthpiece of the straw when the sipping straw extends inside the body of the cup.

A stackable drinking cup has a frustoconical body with a sipping straw formed in the conical side. The inlet at the bottom of the cup has a greater cross-section than the outlet in the mouthpiece of the straw when the sipping straw extends inside the body of the cup.

A container having enhanced wall integrity and a rotational element is provided that includes a sidewall having polygonal cross-sectional shape and an alignment structure formed therein. The alignment structure is adapted for orienting the container with respect to a second container such that the panel sections of the containers become parallel with one another and the containers may be fully nested one within the other. The alignment structure can be recessed into the sidewall to form peaks and valleys along an inner surface of the container. The peaks include first and second faces sloping in opposite directions designed to direct corners of the first container's sidewall toward the interior valleys of the second container in order to orient the containers as they are stacked.

A container having enhanced wall integrity and a rotational element is provided that includes a sidewall having polygonal cross-sectional shape and an alignment structure formed therein. The alignment structure is adapted for orienting the container with respect to a second container such that the panel sections of the containers become parallel with one another and the containers may be fully nested one within the other. The alignment structure can be recessed into the sidewall to form peaks and valleys along an inner surface of the container. The peaks include first and second faces sloping in opposite directions designed to direct corners of the first container's sidewall toward the interior valleys of the second container in order to orient the containers as they are stacked.

A nested tableware set includes: a) first and second bowls having a base and container portion that terminates at an open rim, and b) a plate interposed between the first and second bowls. Each plate has: 1) a base terminating at a side wall that extends upwardly and terminates at a side wall rim, 2) a base wall extending vertically downwardly from the base, 3) a first annular surface extending horizontally away from an upper end of the base wall, and 4) a second annular surface extending horizontally away from and vertically above the first annular surface. The first annular surface and the base wall together define a first shelf for seating the first bowl, and the second annular surface defines a second shelf for seating another plate. The base and side wall together define a third shelf for seating the second bowl.