Abstract: A multiple gas burner assembly has two burners spaced apart by a bridge burner. An axis extending through the first and third burner intersects the perimeter of the bridging second burner. The second burner provides a means for providing a substantially continuous flame perimeter and continuous heating intermediate the first burner and third burner when the three burners are lit.

Abstract: A gas burner comprising a burner pot (2) supporting a burner body (6) comprising a series of peripherally distributed flame orifices (8), a gas injector (13) and a gas supply tube (11) provided with a collar (12), which are joined to the burner pot; the burner pot is provided with a bottom (9) which has a smooth walled central orifice (10); the extremity (17) of the supply tube is fitted, without any significant amount of clearance via the underneath part of the bottom (9) of the burner pot, inside the orifice (10) with the collar (12), resting against the lower surface of the bottom (9); the injector (13) is screwed, from above the bottom (9), into the extremity of the supply tube (11); and the injector (13) is configured in such a way as to push back the wall of the extremity of the supply tube (11) into a tight resting position against the wall of the orifice (10).

Abstract: A multiple gas burner assembly has two burners spaced apart by a bridge burner. An axis extending through the first and third burner intersects the perimeter of the bridging second burner. The second burner provides a means for providing a substantially continuous flame perimeter and continuous heating intermediate the first burner and third burner when the three burners are lit.

Abstract: Atmospheric gas burner for a cooking appliance comprising: a burner head with a lateral perimeter wall defining a distribution chamber provided with flame orifices; a gas injector; means for conveying primary air to downstream of the injector; and a venturi directing the gas/air mixture towards the distribution chamber; at least one region of the lateral wall, free of flame orifices, is pierced with a through-aperture and a passage isolated from the distribution chamber is established in the burner head to connect the aperture to the injector, this aperture and this passage having cross sections which ensure a stream of primary air from the outside of the burner head with a flow rate appropriate to the operation of the burner.

Abstract: Gas burner for a cooker, with a burner head provided with a frustoconical peripheral side wall and with a multiplicity of slots forming flame orifices, the burner head being topped by a cap, the side wall (2′) being inclined (&agr;) to the vertical by 10° to 20° and the bottom (8′) of each slot (3) being inclined (&bgr;) to the horizontal by 20° to 30°; the ratio of the diameter (A) of the cap to the diameter (B) of the side wall (2) at mid-height of the outlet orifices (11) of the slots (3) is from 1.4 to 1.6; the stand-off (H) of the cap above the top of the burner head is from 1 to 15 mm; and the angle of inclination (&ggr;) of the lower face (9) of the cap to the horizontal is from 3° to 15°.

Abstract: Gas cooking appliance equipped with a top plate (1) supporting at least one gas burner (4), characterized in that the said gas burner (4) comprises a gas injector (6) which is fastened to the top plate (1) in a part (11) thereof which projects above the rest of the plate, and which especially may be in the form of a plateau or of a boss.

Abstract: Gas burner for a cooker, comprising a burner head bounded by an approximately frustoconical peripheral side wall with a small cross section located at the top and including a multiplicity of slots distributed peripherally and forming flame orifices, said burner head being topped by a cover or cap; the side wall 2′ has an angle of inclination &agr; to the vertical of about 10 to 20°, and the bottom 8′ of each slot 3 forming a flame orifice, which extends transversely to the side wall, has an angle of inclination &bgr; to the horizontal of about 20° to 30°.

Abstract: All-gas burner, the shape of the peripheral wall of which is not circular in order to increase the heat exchange surface with the item to be heated. The ejection orifices which cross this peripheral wall are created so as to permit a substantially complete combustion of the gas.

Abstract: The invention relates to a gas appliance (1), with a gas burner (4) in the lower part of the said appliance and in the vicinity of an underlying surface (6), further comprising: an atmosphere control pilot light (12) fitted with a primary air inlet orifice connected to which is a tube (10), the free orifice (11) of which is located below the gas burner (4); and means (12) for detecting the temperature of the flame (15) of the pilot light which are operationally coupled to means (14) for cutting off the gas supply to the main burner (4); whereby the gas supply to the burner is interrupted when cooling of the flame of the pilot light, caused by gas enrichment of the mixture (vapors in the primary air, air intake obstructed by a liquid phase) is detected.

Abstract: Gas burner for a cooker, with a burner head provided with a frustoconical peripheral side wall and with a multiplicity of slots forming flame orifices, the burner head being topped by a cap, the side wall (2′) being inclined (&agr;) to the vertical by 10° to 20° and the bottom (8′) of each slot (3) being inclined (&bgr;) to the horizontal by 20° to 30°; the ratio of the diameter (A) of the cap to the diameter (B) of the side wall (2) at mid-height of the outlet orifices (11) of the slots (3) is from 1.4 to 1.6; the stand-off (H) of the cap above the top of the burner head is from 1 to 15 mm; and the angle of inclination (&ggr;) of the lower face (9) of the cap to the horizontal is from 3° to 15°.

Abstract: Gas cooking appliance equipped with a top plate (1) having at least one region (7) for the attachment of an injector (6) of a gas burner (4) and for supporting a head (12) of the burner coaxial with the injector (6); the region (7) has a non-circular contour, particularly a polygonal contour, and the burner head (12) has legs (16) by which it rests on the region (7), the number and arrangement of which legs are such that they collaborate with the sides of the non-circular contour of the region (7) so that the burner head (12) can occupy only a determined and limited number of angular positions while at the same time being arranged coaxial with the injector (6) and so that, for any incorrect positioning—in terms of orientation and/or in terms of centring—of the head (12), the latter rests on the top plate such that it is inclined and that the incorrectness is thus visible.

Abstract: Atmospheric gas burner for a cooking appliance comprising: a burner head with a lateral perimeter wall defining a distribution chamber provided with flame orifices; a gas injector; means for conveying primary air to downstream of the injector; and a venturi directing the gas/air mixture towards the distribution chamber; at least one region of the lateral wall, free of flame orifices, is pierced with a through-aperture and a passage isolated from the distribution chamber is established in the burner head to connect the aperture to the injector, this aperture and this passage having cross sections which ensure a stream of primary air from the outside of the burner head with a flow rate appropriate to the operation of the burner.

Abstract: Gas burner for a cooker, comprising a burner head bounded by an approximately frustoconical peripheral side wall with a small cross section located at the top and including a multiplicity of slots distributed peripherally and forming flame orifices, said burner head being topped by a cover or cap; the side wall 2′ has an angle of inclination &agr; to the vertical of about 10 to 20°, and the bottom 8′ of each slot 3 forming a flame orifice, which extends transversely to the side wall, has an angle of inclination &bgr; to the horizontal of about 20° to 30°.

Abstract: The invention relates to a gas appliance (1), with a gas burner (4) in the lower part of the said appliance and in the vicinity of an underlying surface (6), further comprising: an atmosphere control pilot light (12) fitted with a primary air inlet orifice connected to which is a tube (10), the free orifice (11) of which is located below the gas burner (4); and means (12) for detecting the temperature of the flame (15) of the pilot light which are operationally coupled to means (14) for cutting off the gas supply to the main burner (4); whereby the gas supply to the burner is interrupted when cooling of the flame of the pilot light, caused by gas enrichment of the mixture (vapours in the primary air, air intake obstructed by a liquid phase) is detected.

Abstract: Gas cooking appliance equipped with a top plate (1) having at least one region (7) for the attachment of an injector (6) of a gas burner (4) and for supporting a head (12) of the burner coaxial with the injector (6); the region (7) has a non-circular contour, particularly a polygonal contour, and the burner head (12) has legs (16) by which it rests on the region (7), the number and arrangement of which legs are such that they collaborate with the sides of the non-circular contour of the region (7) so that the burner head (12) can occupy only a determined and limited number of angular positions while at the same time being arranged coaxial with the injector (6) and so that, for any incorrect positioning—in terms of orientation and/or in terms of centring—of the head (12), the latter rests on the top plate such that it is inclined and that the incorrectness is thus visible.

Abstract: Gas cooking appliance equipped with a top plate (1) supporting at least one gas burner (4), characterized in that the said gas burner (4) comprises a gas injector (6) which is fastened to the top plate (1) in a part (11) thereof which projects above the rest of the plate, and which especially may be in the form of a plateau or of a boss.

Abstract: All-gas burner 1 the shape of the peripheral wall 9 of which is not circular in order to increase the heat exchange surface with the item to be heated. The ejection orifices 11 which cross this peripheral wall are created so as to permit a substantially complete combustion of the gas.

Abstract: A gas burner with multiple gas rings comprising: a burner body (6) mountable underneath a top plate, with a cut-out section, of an appliance and incorporating a first, upwardly directed gas injector (14) and a second gas injector (9) followed by a horizontal tubular Venturi (10) opening into a vertical well (12); an outer burner head (3) seated on the body (6) through the cut-out section and spaced at a distance above the plate and provided with an annular chamber (22) open above the well (12) and having one or two rows of orifices for flames (4,5); and an inner burner head (1) shaped so as to have a radial divergent (37) coaxially supplied by the first injector through a recess located at the center (31) of the head (3), ports being provided in the head (3) so that all the primary air and the secondary air needed to operate the multiple burner arrives from the top of the top plate of the appliance.

Abstract: A gas burner with multiple gas rings comprising: a burner body (6) mountable underneath a top plate, with a cut-out section, of an appliance and incorporating a first, upwardly directed gas injector (14) and a second gas injector (9) followed by a horizontal tubular Venturi (10) opening into a vertical well (12); an outer burner head (3) seated on the body (6) through the cut-out section and spaced at a distance above the plate and provided with an annular chamber (22) open above the well (12) and having one or two rows of orifices for flames (4,5); and an inner burner head (1) shaped so as to have a radial divergent (37) coaxially supplied by the first injector through a recess located at the center (31) of the head (3), ports being provided in the head (3) so that all the primary air and the secondary air needed to operate the multiple burner arrives from the top of the top plate of the appliance.

Abstract: The invention concerns a cooking appliance comprising devices for cooking of which at least one burner with spiralling flames. The ducts for delivering the fuel mix towards the external part of the burner with spiralling flames are inclined with respect to a peripheral line on which the flame outlets are distributed. The invention is useful for high-powered gas burners for cooking food.