Patent ID: 6866507
Filing Date: 2005-03-15
Classification: A61C,H01H

Abstract:
1. A foot switch for being operatively connected with a dental apparatus for operation of at least two different functional members of said dental apparatus, said foot switch comprising: a base plate for supporting the foot switch on the floor, a cover plate which is movable relative to the base plate and fixedly connected along an edge portion with the base plate for forming a fluid-tight hollow between the base plate and the cover plate, a signaling line for being extended between the hollow and the at least two different functional members of the dental apparatus for transmitting functional control signals upon depression of the cover plate, the hollow housing at least two press switches which are electrically connectable via the signaling line with electrical or electronic switches of the at least two different functional members of the dental apparatus, the at least two press switches being each formed as diaphragm switches comprising each a printed circuitry with an arrangement between two carrier foils that are mutually fixed along an edge portion in a fluid-tight manner and supported on the base plate of the foot switch, each printed circuitry of a press switch comprising a contact spring which is arranged between the two carrier foils for triggering a functional control signal for an associated functional member of the dental apparatus upon depression of the cover plate at the location of the associated press switch.