Abstract: A cooktop having a flat glass ceramic plate and a plurality of rails independently attached to the bottom surface of the glass ceramic plate. The rails are configured to be received in a cutout in a countertop and are not connected to each other at the corners. The bottom of the cooktop is enclosed by a rough in-box consisting of a primary U-shaped cover and two independent end covers.

Abstract: The present invention provides a staple for a heating unit. In one embodiment, the heating unit has a base, a first insulation layer, a second insulation layer, and a heating element. The first insulation layer has a top surface and a bottom surface. The heating element rests on the top surface of the first insulation layer. The staple includes a base and a plurality of legs. The base is capable of straddling a portion of the heating element. At least one of the plurality of legs is capable of extending through the top and bottom surfaces of the first insulation layer. A portion of the leg extending through the bottom surface of the first insulation layer is capable of being rolled to form a foot. The second insulation layer is located between the bottom surface of the first insulation layer and the base. In another embodiment, the present invention includes a staple for a heating unit having an insulation layer and a heating element. The heating element rests on the top surface of the insulation layer.

Abstract: A mounting for a cooking surface held at its periphery by at least one support part comprising a fiberglass reinforced duromer or thermosetting resin selected from the group consisting of an unsaturated polyester resin, a melamine resin, a phenol resin, and an epoxy resin, wherein the fiberglass reinforcement are glass fibers having a length of 15 mm to 65 mm.

Abstract: A description is given of a temperature detection device for an electric radiant heater, with which is associated an active sensor for detecting the positioning of a cooking vessel on a hotplate, particularly a glass ceramic plate, covering the radiant heater. This sensor is part of an inductive resonant circuit of a control means and preferably has a single sensor loop of electrically conductive material located in the vicinity of at least one heating zone heatable by electric radiant elements and preferably partly overlapping the same. According to the invention, with at least one portion the sensor loop forms a functional element of a temperature sensor of the temperature detection device. For example, a tubular sensor loop portion can serve as a supporting or protective jacket of a jacket thermocouple.

Abstract: The insulating bottom (3) of a metal foil radiant heating body for a cooking hob is provided with a holding portion by means of which an insulating ring is secured under a glass ceramic plate to delimit the heating zone. By virtue of being secured to that holding portion (4), a particularly narrow inner insulating ring can also be operationally reliably fixed on the insulating bottom (3) in order to distinguish an inner from an ouster cooking hob portion.

Abstract: Crack formation is to be avoided in a press-molded body, in particular for a cooking surface radiant heating arrangement, comprising a heat-insulating material. For that purpose, in a transitional zone 8 between a more compacted region 6 and a less compacted region 3, the heat-insulating material is compacted to an even greater degree than in the more compacted region.

Abstract: An asymmetric radiant electric heater has multiple heating zones which can be arranged in a plurality of configurations. The heater comprises a dish-like support having two orthogonal axes of symmetry, a base of thermal and electrical insulation material in the dish-like support, a first heating element and a second heating element supported adjacent one another on a major surface of the base and forming an asymmetric arrangement in the dish-like support, a terminal block secured at a fixed location at an edge of the dish-like support, and a wall arrangement of thermal insulation material supported on the base and comprising a peripheral wall extending around the heater and a dividing wall, integral therewith, extending between the adjacent first and second heating elements to form at least two asymmetric heating zones.

Abstract: A radiant electric heater comprises a base (2) of thermal and electrical insulation material, an electrical heating element (3) supported on or adjacent to the base and having a terminal region (7) at a location in the heater remote from a periphery of the heater, and a rod-like temperature-responsive device (9) extending at least partly across the heater from the periphery thereof at least to a region proximate the terminal region of the heating element. Electrical connecting means extends from the terminal region (7) of the heating element (3) to the periphery of the heater by way of the rod-like temperature-responsive device (9).

Abstract: A radiant electric heater comprises a dish-like component (1) of thermal insulation material having a base (2) and an upstanding peripheral wall (3). At least one heating element (4) is supported inside the dish-like component, and reinforcing means (5) is secured to the outside of the dish-like component at the outside thereof. The reinforcing means (5) comprises at least one strip (6, 7; 6A, 7A) extending across the base (2) and at least partly up the peripheral wall (3) of the dish-like component (1).

Abstract: There is disclosed an electrically resistance insulator for use in supporting a helical heater coil at seven locations on the coil. The insulator is supported from a support structure and has a pair of arms that extend from the base for supporting the heater coil. The arms have an intermediate slot and two inwardly extending notches at the bottom of the arms. The notches and the intermediate slot support three consecutive convolutions of the coil relative to the insulator at one axial side of the coil. The arms of the insulator further have shoulders which provide a widened slot area and defined lug portions at the upper parts of the arms. The width of the lug portions taper outwardly to permit for two adjacent convolutions of the heater coil to be supported on opposing sides of each of the lug portions. Since two lug portions are provided, one for each arm, the heater coil is supported at four locations consecutive coil convolutions by the lug portions of the insulator.

Abstract: A radiant heating body for a cooking hob has a heating conductor comprising a metal foil and an insulating bottom (12). To make the heating conductor easy to fit and to provide advantageous heat radiation properties the flat geometrical heating conductor pattern is separated out of the metal foil. The pattern forms heating limbs (1) whose large surface is towards the cooking hob and which are held at least at an outer annular rim (13) of the insulating bottom (12).

Abstract: The system for the attachment of a heating element in a electric cooking hob comprises a flat electrical element made of a thin resistance alloy strip, a horizontal porous insulating base (4) supporting the heating element (2) and a plurality of feet (3) for attachment to the base (4), which are inserted in said base (4) and hold vertical the element (2) in place. The heating element (2) is same width (w) throughout its length, and stands on the surface of the insulating base (4) without the need for a housing groove, and the fixing are flat feet (3) each one bent along their central vertical zone (3c) coinciding with the element (2) bending, to facilitate the secure attachment of the element (2).

Abstract: The insulation component of a radiant electric heater device formed with fused silica particulates is combined in the device during its construction. Final preparation of the insulation takes place after assembly in a metal dish of the device.

Abstract: A heater (1) particularly usable as a radiant heater for electric cookers is described, which has a insulating substrate (2) of microporous thermal insulation material and at least one electric heating conductor (20) in the form of an upright, corrugated flat strip fixed to the top of the insulating substrate. The top side of the insulating substrate is structured in honeycomb-like manner and has a network of raised portions (10) between which are located roughly cylindrical depressions (11). With small-surface fixing portions the heating conductor positively engages in the raised portions (10) and is held in freely suspended manner over the insulating substrate in the vicinity of the depressions (11).

Abstract: A heat insulating molded body made of inorganic material and inorganic reinforcement fibers is disclosed, as well as a process for producing the same and its use. The molded body is characterized by the following composition: (a) 30-70 wt. % blown vermiculite; (b) 15-40 wt. % inorganic binder; (c) 0-20 wt. % infrared opacifier; (d) 15-50 wt. % microporous material; (e) 0.5-8 wt. % reinforcement fibers which contain maximum 2 wt. % B2O3 and at most 2% alkalimetal oxide, based on the weight of the reinforcing fibers.