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Title: Heating element support clip

An apparatus for supporting a heating element in a channel formed in a heater base is disclosed. A preferred embodiment includes a substantially U-shaped tantalum member. The U-shape is characterized by two substantially parallel portions of tantalum that each have an end connected to opposite ends of a base portion of tantalum. The parallel portions are each substantially perpendicular to the base portion and spaced apart a distance not larger than a width of the channel and not smaller than a width of a graphite heating element. The parallel portions each have a hole therein, and the centers of the holes define an axis that is substantially parallel to the base portion. An aluminum oxide ceramic retaining pin extends through the holes in the parallel portions and into a hole in a wall of the channel to retain the U-shaped member in the channel and to support the graphite heating element. The graphite heating element is confined by the parallel portions of tantalum, the base portion of tantalum, and the retaining pin. A tantalum tube surrounds the retaining pin between the parallel portions of tantalum.
Authors:
 [1]
  1. (Salida, CA)
Publication Date:
OSTI Identifier:
870027
Report Number(s):
US 5442158
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Patent
Research Org:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
Country of Publication:
United States
Language:
English
Subject:
heating; element; support; clip; apparatus; supporting; heating; element; channel; formed; heater; base; disclosed; preferred; embodiment; substantially; u-shaped; tantalum; u-shape; characterized; substantially; parallel; portions; tantalum; connected; opposite; base; portion; tantalum; parallel; portions; substantially; perpendicular; base; portion; spaced; apart; distance; larger; width; channel; width; graphite; heating; element; parallel; portions; therein; centers; holes; define; axis; substantially; parallel; base; portion; aluminum; oxide; ceramic; retaining; extends; holes; parallel; portions; wall; channel; retain; u-shaped; channel; support; graphite; heating; element; graphite; heating; element; confined; parallel; portions; tantalum; base; portion; tantalum; retaining; tantalum; tube; surrounds; retaining; parallel; portions; tantalum; channel formed; substantially perpendicular; heating element; heating element; heating element; heating element; heating element; aluminum oxide; preferred embodiment; spaced apart; oxide ceramic; substantially parallel; substantially parallel; base portion; base portion; base portion; base portion /219/373/