|6525642||Self-regenerating liquid metal current limiter|
A self-regenerating liquid metal current limiter including solid metal electrodes for connection to an electric circuit to be protected and several compression chambers which are partially filled with liquid metal. The compression chambers are located one...
|3978313||Power regulating arrangement for a three phase electrode-type water heater|
A water heater has a pair of concentric, relatively rotatable, electrically insulating supports between which the water to be heated can pass. Each support mounts three parts of equidistantly spaced electrodes. The spaced electrodes of the first set are e...