Abstract: A switch, a power conversion apparatus, and a power supply system. The power supply system includes a control unit, a switch, a direct current source, and a power conversion unit. The switch is electrically connected between the direct current source and the power conversion unit, and the control unit is configured to send a switch-off signal to the switch when a fault occurs on the direct current source or the power conversion unit. The switch includes a contact component, a trip-free structure, and a knob that are sequentially disposed in a stacked manner in a first direction. A trip unit of the trip-free structure is configured to receive the switch-off signal, to unlock the trip unit from the cradle. The cradle drives the connecting rod structure to move, to separate the moving contact from the fixed contact.

Abstract: A portable electric grilling appliance (20) for household use which has first and second heating units (22, 24) which, in use, overlie one another has substantially identical housing shells to make it evident to the user that the grilling appliance (20) can be used with either one of the heating units as the lower heating unit and provide support for the other heating unit. The two heating units (22, 24) have substantially the same exterior appearance and both are designed to function as either the top heating unit or the bottom heating unit. The two heating units (22, 24) are substantially symmetrical about a horizontal plane extending between them when the heating units are arranged one on top of the other to indicate to the user of the appliance that either heating unit could be placed on top and the other on the bottom.

Abstract: A waffle baker grill for producing a waffle product, including a first heating plate having a first surface and a first peripheral wall extending from the first surface to a predetermined distance. The first peripheral wall includes a first side and a second side. A second heating plate has a second surface and a second peripheral wall extending from the second surface to the predetermined distance. The second peripheral wall includes at least a third side and a fourth side. The second heating plate is pivotally connected to the first heating plate to move between a closed position and an open position. The first and second surfaces include at least one scoring flange extending to a distance less than the predetermined distance. The waffle produced from the grill may be divided into a plurality of waffle sticks along score lines created by the scoring flanges.

Abstract: A portable electric grilling appliance (20) for household use which has first and second heating units (22, 24) which, in use, overlie one another has substantially identical housing shells to make it evident to the user that the grilling appliance (20) can be used with either one of the heating units as the lower heating unit and provide support for the other heating unit. The two heating units (22, 24) have substantially the same exterior appearance and both are designed to function as either the top heating unit or the bottom heating unit. The two heating units (22, 24) are substantially symmetrical about a horizontal plane extending between them when the heating elements are arranged one on top of the other to indicate to the user of the appliance that either heating unit could be placed on top and the other on the bottom.

Abstract: A waffle baker grill for producing a waffle product, including a first heating plate having a first surface and a first peripheral wall extending from the first surface to a predetermined distance. The first peripheral wall includes a first side and a second side. A second heating plate has a second surface and a second peripheral wall extending from the second surface to the predetermined distance. The second peripheral wall includes at least a third side and a fourth side. The second heating plate is pivotally connected to the first heating plate to move between a closed position and an open position. The first and second surfaces include at least one scoring flange extending to a distance less than the predetermined distance. The waffle produced from the grill may be divided into a plurality of waffle sticks along score lines created by the scoring flanges.

Abstract: A portable electric grilling appliance (20) for household use which has first and second heating units (22, 24) which, in use, overlie one another has substantially identical housing shells to make it evident to the user that the grilling appliance (20) can be used with either one of the heating units as the lower heating unit and provide support for the other heating unit. The two heating units (22, 24) have substantially the same exterior appearance and both are designed to function as either the top heating unit or the bottom heating unit. The two heating units (22, 24) are substantially symmetrical about a horizontal plane extending between them when the heating elements are arranged one on top of the other to indicate to the user of the appliance that either heating unit could be placed on top and the other on the bottom.

Abstract: The production of linear polyester by the interchange of ester radicals or esterification and polycondensation of multivalent alcohols with multivalent carboxylic acids takes place by means of catalysts. In order that the catalyst features the lowest possible content of catalytically active metal compound, the carrier substance that forms the heterogeneous phase comprises particles of the finest grain and of porous structure and features a surface of great inner, reactive and/or coordinated centers, whereby a catalytically active metal compound is adsorbed in the pores.