Switching element
OwnerShigeo Ohashiinventor
Life of this patent
Estimating the term…
Abstract
A switching element having a container made of insulating material, terminals extending from the inside to outside of the container, a mixture filled and hermetically sealed in the container, the mixture being composed of conductive powder or particles which may be magnetic and of a non-conductive liquid such as contact oil. The conductive powder is primarily suspended in the liquid, and magnetic forces are applied to and removed from the above-mentioned powder or particles by magnets or the like provided outside of the container to perform switching operations.
Claims7
In a switching element comprising a container made of insulating material, a plurality of terminals made of magnetic material and fixed on said container and extending from the inside of said container to the outside of said container, a mixture filled and hermetically sealed in said container, and magnetic means operatively connected to said container and operable to apply a magnetic field to said mixture, the improvement which resides in said mixture, said mixture being composed of a non-conductive liquid selected from the group consisting of lubricating oil and contact oil, and powder or particles made of conductive magnetic material suspended in said non-conductive liquid.
Dependencies are inferred from the claim text.