Patent ID: 7089861
Filing Date: 2006-08-15
Classification: F42B

Abstract:
1. A heating element for igniting a pyrotechnic charge comprising a base body, a structured strip shaped resistance layer on said base body, and contact fields overlapping said resistance layer at ends thereof for applying a current pulse to the heating element, the heating element having a mass of 1.0×10 the resistance layer being composed of a sintered Ag/Pd resistance paste or a sintered Ag/Au/Pd resistance paste containing 30 to 50 mass % Ag and 35 to 50 mass % Pd, or a sintered Pt/W resistance paste containing 70 to 90 mass % Pt and 5 to 20 mass % W, the base body being composed of a high-temperature-resistant glass or glass-ceramic or ceramic with a thermal conductivity of at most 2 W/(m·K), and the contact fields being composed of sintered AgPd or AgPt thick-layer conductor paste with Pd or Pt proportions between 1 and 10 mass %.