Abstract: A connector assembly for connecting a rigid circuit board to a flat flexible circuit. The connector includes a U-shaped contact element, U-shaped compression spring and U-shaped housing. The housing is dimensioned to receive the circuit board at an edge thereof and includes a receptacle for the flexible circuit. The contact element is mounted in the housing and is in contact with a contact surface of the circuit board and a contact surface of the flexible circuit. The housing includes openings through which a respective contact arm of the contact element extends to contact the circuit board. The compression spring includes pressing surfaces which exert a pressing force against the flexible circuit to effect contact between the flexible circuit and the contact element.

Abstract: The present invention provides dual-fuel burners for the oxidation of liquid and of gaseous fuel with air. A dual-fuel burner is provided with an atomizer nozzle which generates a divergent spray cone of liquid fuel, and with an annular atomizer lip as an impact member for the liquid fuel spray cone. The dual-fuel burner has a primary channel for a first air stream through the spray cone and the inside of the atomizer lip, and a secondary channel for a second air stream over the outside of the atomizer lip with a common, coaxial mouth at an atomizer edge thereof. A channel for the gaseous fuel leads into the inside of the atomizer lip between the primary and secondary channels and discharges into one or both of the primary and secondary channels upstream of the atomizer edge.