×

Thermoelectrically powered wrist watch

  • US 5,889,735 A
  • Filed: 10/15/1997
  • Issued: 03/30/1999
  • Est. Priority Date: 10/16/1996
  • Status: Expired due to Fees
First Claim
Patent Images

1. A thermoelectrically powered wrist watch comprising:

  • a case back, a case body whose temperature comes into equilibrium with an outside air temperature and which is made of a metallic material, a thermoelectric element for thermally converting a temperature difference to an electric energy, thermal input means composed of an endothermic plate disposed under a bottom portion of the case back and a heat transfer pin, and thermal conduction means comprised of at least one metallic member in contact with one end of the thermoelectric element;

    wherein at least two thermal conduction preventive packings each made of a plastic or rubber material are disposed between the endothermic plate and the case back and between the case back and the thermal conduction means, respectively, as viewed in vertical section; and

    wherein the heat transfer pin is inserted into through-holes formed in the thermal conduction preventive packings, thermal conduction means and case back and, by mechanical fixing means such as caulking or screwing, the heat transfer pin and the thermal conduction means are fixed to thereby bring the thermal input means, thermal conduction means, thermal conduction preventive packings and case back into pressure contact with one another.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×