Abstract: A combined igniter and flame sense electrode for a dual stage gas burner that includes a first burner and a second burner is disclosed. The electrode includes a first conductive element mounted on the shaft and positioned closer to the first burner than to the second burner; a second conductive element mounted on the shaft and positioned closer to the second burner than to the first burner; and one or more electrical connectors connected to the conductive elements. An electrode according to the invention can also be used with a single stage gas burner, by placing the first conductive element at the position of high level flame from the burner and by placing the second conductive element at the position of low level flame from the burner. A gas burner assembly incorporating such an electrode, and a gas appliance incorporating such a gas burner assembly, are also disclosed.

Abstract: A masking tape for use in masking a part in a high velocity oxy-fuel (HVOF) plasma spray process. The tape is formed from a fabric which is tightly woven from yarns of aramid fibers. A silicone rubber impregnates the inner fabric layer. First and second silicone rubber layers are coated onto opposite sides of the impregnated fabric. A first silicone pressure-sensitive adhesive, which is a rare metal cured adhesive, is coated onto the second silicone rubber layer. A second silicone pressure-sensitive adhesive is coated onto the first silicone pressure-sensitive adhesive. A release liner is preferably laminated to the second pressure-sensitive adhesive.