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US 9,111,699 B2Granted
Electrical switch
AssigneeSiemens Aktiengesellschaft
InventorsJürgen Birner, Walter Felden, Bernhard Hannich, Thomas Pniok
Life of this patent
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Abstract
An electrical switch is disclosed, especially a circuit breaker. In addition, a method for improving such a switch is also disclosed. In order to protect an electrical switch in an especially simple manner from contamination and/or damage by erosion materials, it is proposed to cover a few or all functional parts of the switch at least partly with a protective material, wherein the protective material involves a viscous, temperature-resistant mass.
Claims17
An electrical switch, comprising:
- a rotor housing including a housing shell, the housing shell having an outer edge on a peripheral exterior surface of the housing shell and an internal edge on a peripheral interior surface of the housing shell, and at least one recess formed on the housing shell;
- at least one rotatable ball in the housing shell;
- and
- a protective material covering a surface of at least the at least one recess with the protective material to protect against at least one of contamination and damage by erosion materials, wherein the protective material involves a viscous, temperature-resistant mass, wherein
- the internal edge forms a wall section of the rotor housing on which the at least one hall rotatable engages.
2 more elements
Dependencies are inferred from the claim text.