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Toggle switch

  • US 5,158,172 A
  • Filed: 01/28/1991
  • Issued: 10/27/1992
  • Est. Priority Date: 01/28/1991
  • Status: Expired due to Term
First Claim
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1. An electrical toggle switch comprising:

  • (a) a case;

    (b) a toggle lever having a cylindrical end and a substantially centrally located spherical portion;

    (c) a cover attached to the case, the cover having an inner spherical surface disposed to engage the spherical portion of the toggle lever;

    (d) a retaining ring disposed to maintain the toggle lever in contact with the spherical portion of the cover, the retaining ring being securely inserted in place on the cover, the retaining ring functioning also as a bearing on the spherical portion of the toggle lever;

    (e) a blade having blade contact;

    (f) an external thermal connected to the blade and the case to secure the blade to the case and provide an external electrical connection to the blade;

    (g) a fixed electrical contact connected to the case and disposed to make and break an electrical connection with the blade contact;

    (h) an actuator mounted so as to rock in the case, the actuator moving the blade to make and break the electrical connection between the blade contact and the fixed contact;

    (i) a plunger mounted to slide on the cylindrical end of the toggle lever and move the actuator; and

    (j) a coil spring sized to enclose the cylindrical end of the toggle lever and engage the plunger so as to apply an axial force between the toggle lever and the plunger.

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