Abstract: A foaming device for the preparation of coffee and milk, cappuccinos or similar drinks including a cover designed to close the top of a virtually cylindrical container of the drink and a disk movable axially inside the container during use of the device with the disk being equipped with at least one mesh portion for emulsion of the air in the liquid and being fastened transversely to a rod running axially in a hole in the cover and protruding above it to be grasped manually. The device is characterized in that said cover includes at least two concentric annular grooves designed to engage with the upper edge of containers of different diameters to realize closing of the container with there being present a flexible circumferential portion that extends from the edge of the disk towards the outside to cover the opening that is created between the disk edge and the internal wall of the container when the device is used with containers of greater diameter.

Abstract: A foaming device for the preparation of coffee and milk, cappuccinos or similar drinks including a cover designed to close the top of a virtually cylindrical container of the drink and a disk movable axially inside the container during use of the device with the disk being equipped with at least one mesh portion for emulsion of the air in the liquid and being fastened transversely to a rod running axially in a hole in the cover and protruding above it to be grasped manually. The device is characterized in that said cover includes at least two concentric annular grooves designed to engage with the upper edge of containers of different diameters to realize closing of the container with there being present a flexible circumferential portion that extends from the edge of the disk towards the outside to cover the opening that is created between the disk edge and the internal wall of the container when the device is used with containers of greater diameter.

Abstract: An acoustic signalling device for containers destined for culinary use, in particular for boilers, is proposed, comprising a nozzle (11) able to convey externally to a container able to be closed (2) whereto the device is associated a steam jet formed inside the same container, a sounding body (12) fastened to a portion of the container able to be closed (2) and a movable element (13) positioned in the trajectory of the steam jet and able repeatedly to strike the sounding body (12) under the thrust of the same steam jet.

Abstract: A milk jug with froth-forming device for making cappuccino and the like, including a container body that can be closed with a lid that supports and guides a froth-forming element, which is constituted by a plunger element associated with a rod that protrudes from the lid. The plunger element has a disk-like element formed by a circumferential rim that is connected, by spoke-like arms, to a central hub in which the rod is inserted. The spoke-like arms retain a mesh affecting the entire surface of the disk-like element, and the spoke-like arms decrease in thickness from the hub towards the outer rim to provide flexibility on the outer portion of the disk-like element so as to increase the inclusion of air particles inside the liquid upon a reciprocating motion of the plunger element.

Abstract: A milk jug with froth-forming device for making cappuccino and the like, including a container body that can be closed with a lid that supports and guides a froth-forming element, which is constituted by a plunger element associated with a rod that protrudes from the lid. The plunger element has a disk-like element formed by a circumferential rim that is connected, by spoke-like arms, to a central hub in which the rod is inserted. The spoke-like arms retain a mesh affecting the entire surface of the disk-like element, and the spoke-like arms decrease in thickness from the hub towards the outer rim to provide flexibility on the outer portion of the disk-like element so as to increase the inclusion of air particles inside the liquid upon a reciprocating motion of the plunger element.