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Apparatus for heating gases

  • US 4,990,748 A
  • Filed: 04/12/1989
  • Issued: 02/05/1991
  • Est. Priority Date: 01/26/1989
  • Status: Expired due to Term
First Claim
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1. Apparatus for heating gases with a heating unit having a mounting part, at least one PTC component inserted in the mounting part, at least one insulating frame surrounding the at least one PTC component, at least one contact plate and at least one insulating support, the at least one contact plate resting on at least one flat side and being covered by the at least one insulating support, and heat emission lamellas resting in a clamping manner on said heating unit , said lamellas including openings surrounding the heating unit said openings being bounded by two facing tongues bent out of a plane of the lamellas, wherein a connection area of the two tongues to a body of the respective lamellas are spaced at a distance corresponding to a height of the heating unit, and wherein an internal spacing of ends of the respective tongues is less than the height of the heating unit.

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