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Longitudinal electromagnetic latching relay

  • US 6,838,959 B2
  • Filed: 04/14/2003
  • Issued: 01/04/2005
  • Est. Priority Date: 04/14/2003
  • Status: Expired due to Fees
First Claim
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1. An electromagnetic relay, comprising:

  • a relay housing containing a switching channel a solid slug adapted to move within the switching channel;

    a first contact located in the switching channel and having a surface wettable by a liquid;

    a second contact located in the switching channel and having a surface wettable by a liquid;

    a third contact located in the switching channel between the first and second contacts and having a surface wettable by a liquid;

    an electrically conducting liquid in wetted contact with the solid slug;

    a first electromagnetic actuator operable to move the solid slug to a first position where it is in wetted contact with the first and third contacts; and

    a second electromagnetic actuator operable to move the solid slug to a second position where it is in wetted contact with the second and third contacts, wherein the relay housing comprises;

    a circuit substrate layer on which the first, second and third contacts are formed;

    a cap layer; and

    a switching layer, positioned between the circuit layer and the cap layer, in which the switching channel is formed.

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