US 5,920,131 A · Arrangement for the control of electrically controllable appliances

Abstract

An arrangement for the control of electrically controllable appliances, particularly electric cookers proposes for each cooking point an operating element magnetically held in contactless manner on the top or front of a plate, e.g. a glass ceramic plate. Below or behind the plate is located a magnet, which magnetically secures the operating element, which can in this position be rotated in contactless manner sensors are operated, which are used for changing the control of the cooking point. Both the control and the fixing of the operating element take place in contactless manner. The plate requires no openings, passages, depressions, etc. The operating elements can be removed on overcoming the magnetic holding force. This removal can be utilized for the complete disconnection of the cooker.

Claims24

Dependent claims

Arrangement for the control of electrically controllable appliances, comprising:

a platelike element;
a device for genetating a field acting as force field placed on a first side of the platelike element;
an operating element located on the opposite side of the platelike element and being movable between a plurality of positions;
and,
a device for determining the position and the position change of the operating element, which cooperates exclusively in contactfree manner with the operating element, the operating element being kept fixed on the plate exclusively by the force of the field, and said device for determining the position and position change of the operating element having at least one sensor located on said first side and said sensor being influenced by said operating element exclusively in a contactless manner.

2 more elements

Dependencies are inferred from the claim text.

Arrangement for the control of electrically controllable appliances

Life of this patent

Arrangement for the control of electrically controllable appliances

Life of this patent

Abstract

Claims24