Abstract: An armored resistor (1) comprising a tubular casing (2) in which a metallic heating element (3) immersed in an electrically insulating material (4) is arranged. Furthermore, a first closing element (5) and a second closing element (6) of the tubular casing (2) are provided, in which the first closing element (5) is fluid-tightly fixed to the respective first end (7) of the tubular casing (2), and the second closing element (6) is provided with at least one at least one radial protrusion (15) which abuts on the second end (8) of the tubular casing (2), and which delimits at least one passage (16) communicating with the inside of the tubular casing (2), adapted to allow the passage of the electrically insulating material during the manufacturing of the armored resistor.

Abstract: An armored resistor (1) comprising a tubular casing (2) in which a metallic heating element (3) immersed in an electrically insulating material (4) is arranged. Furthermore, a first closing element (5) and a second closing element (6) of the tubular casing (2) are provided, in which the first closing element (5) is fluid-tightly fixed to the respective first end (7) of the tubular casing (2), and the second closing element (6) is provided with at least one at least one radial protrusion (15) which abuts on the second end (8) of the tubular casing (2), and which delimits at least one passage (16) communicating with the inside of the tubular casing (2), adapted to allow the passage of the electrically insulating material during the manufacturing of the armored resistor.

Abstract: The section bar (1) for a fluid flow heater for coffee machines has a longitudinal development with two opposing ends and a first tubular cavity (A), that is accessible at the opposing ends of the section bar (1), and a second cavity (B) having an opening (O) that extends along the longitudinal development of the section bar (1). A heater (10) having an encased resistor (2, 3) integrated in the first cavity (A) of the section bar (1) and a tubular fluid circulation conduit (4) inserted into the second cavity (B) of the section bar (1) and fixed by means of bending at least one lug (B1, B2, B3) around the tubular fluid circulation conduit (4), so that the opposing ends of the tubular fluid circulation conduit (4) emerge with respect to the opposing ends of the section bar (1).

Abstract: A machine for dispensing hot beverages, e.g. coffee, comprising a liquid heater, in particular for heating water intended for human consumption, provided with a container, adapted to be at least partially filled with a first liquid to be heated, and a heating electric resistor arranged outside the container, in contact with the bottom of said container, so as to indirectly heat said first liquid through said bottom.

Abstract: The section bar (1) for a fluid flow heater for coffee machines has a longitudinal development with two opposing ends and a first tubular cavity (A), that is accessible at the opposing ends of the section bar (1), and a second cavity (B) having an opening (O) that extends along the longitudinal development of the section bar (1). A heater (10) having an encased resistor (2, 3) integrated in the first cavity (A) of the section bar (1) and a tubular fluid circulation conduit (4) inserted into the second cavity (B) of the section bar (1) and fixed by means of bending at least one lug (B1, B2, B3) around the tubular fluid circulation conduit (4), so that the opposing ends of the tubular fluid circulation conduit (4) emerge with respect to the opposing ends of the section bar (1).

Abstract: A machine for dispensing hot beverages, e.g. coffee, comprising a liquid heater, in particular for heating water intended for human consumption, provided with a container, adapted to be at least partially filled with a first liquid to be heated, and a heating electric resistor arranged outside the container, in contact with the bottom of said container, so as to indirectly heat said first liquid through said bottom.

Abstract: A device for transferring heat to a fluid with a heat generator comprising an electric resistance inserted in a first pipe integrally connected to a second pipe in which the fluid flows. The second pipe may comprise a steel tube coaxially inserted inside. First and second pipes are obtained inside a single block by means of an extrusion process.

Abstract: A device for transferring heat to a fluid with a heat generator comprising an electric resistance inserted in a first pipe integrally connected to a second pipe in which the fluid flows. The second pipe may comprise a steel tube coaxially inserted inside. First and second pipes are obtained inside a single block by means of an extrusion process.

Abstract: An electric radiant hotplate includes a base of electrically insulating material and a peripheral crown extending along the outer rim of the base and projecting upwards. A strip of resistive material is inserted in the base and is formed by a sequence of planar lengths and curved lengths connected to respective planar appendices that are inserted in the insulating base. The appendices can be connected to the planar lengths by respective peduncles applied on to the same side edge of the flat strip of resistive material. The appendices can also be either coplanar or not coplanar to the planar lengths and include a first portion connected to the respective planar length of the strip, and at least a second planar portion that is not coplanar with the first portion and is joined to the first portion via a rectilinear border, the first portions being applied on a same side edge of the flat strip of resistive material.

Abstract: Electric radiant hotplate, suitable also for use in cooking tops, comprising: a base of electrically insulating material, a peripheral crown extending along the outer rim of said base and projecting upwards, at least a strip or resistive material that is inserted in said base dand is formed by a sequence of planar lengths and curved lengths are connected to respective planar appendices that are inserted in the insulating base. In one embodiment, said appendices are connected to the planar lengths by means of respective peduncles applied on to the same side edge of the flat strip of resistive material.

Abstract: A resistive heating element, in particular for clothes dryers, comprising a substantially rectangular plate of heating resistant dielectric material supported at its ends by two shoulders also of heat-resistant dielectric material and inserted through a resistive wire spiral connected at its ends to conductor cables, characterised in that one end of the plate is freely slidable along a slot provided in the corresponding shoulder.