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Spring loaded thermocouple module

  • US 4,527,005 A
  • Filed: 03/13/1984
  • Issued: 07/02/1985
  • Est. Priority Date: 03/13/1984
  • Status: Expired due to Fees
First Claim
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1. A thermocouple arrangement for mounting in a specimen to be monitored, said specimen having a side wall and an end wall therein so as to define a blind hole for mounting said thermocouple arrangement, said thermocouple arrangement comprising;

  • an elongated thermal insulator member having first and second end portions of predetermined dimensions, shoulder means disposed adjacent said second end portion and dimensioned smaller than said first end portion, first and second passageways extending through said insulator in a direction generally parallel to the longitudinal axis thereof;

    a cup-shaped holder member, having a hollow cylindrical wall portion, a first open end and a second end enclosed by a generally disc-shaped end wall member having an aperture formed therein for receiving said shoulder means of said insulator member, said second end portion of said insulator member disposed within said holder member, adjacent said end wall thereof;

    spring bias means disposed within said holder for maintaining engagement between said second end portion of said insulator and said end wall of said holder;

    first and second thermocouple wires disposed in said first and said second passageways of said thermal insulator and extending beyond said shoulder means, terminating in first and second free ends, respectively;

    a spherical thermally conductive bead joining said first and said second free ends to said thermocouple wires together so as to form a spherical thermal contact surface;

    fastening means formed on an outside surface of said holder for engagement with said side wall of said specimen to be monitored, such that when said thermocouple arrangement is fastened to said specimen, said spherical bead contacts said end wall of said blind hole, said shoulder of said insulator member and a portion of said spherical bead recessed within said holder, with said spring bias means maintaining said spherical bead in thermal contact with said end wall of said blind hole.

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