Patent ID: 6851180
Filing Date: 2005-02-08
Classification: G01N,Y10S,Y10T

Abstract:
1. A method for manufacturing a gas sensor that includes (a) a hollow cylindrical sensor element having a first and a second end portion axially opposed to each other and (b) an inner electrode terminal installed on an inner terminal mount formed on an inner peripheral surface of the second end portion of the cylindrical sensor element, said method comprising: preparing the inner electrode terminal as an elastically deformable annular holder, a lead, and a protrusion, the annular holder having an outer diameter greater than an inner diameter of the inner terminal mount of the cylindrical sensor element and a first and a second end axially opposed to each other, the lead extending axially from the second end of the annular holder, the protrusion projecting from the second end of the annular holder radially outward; and inserting the annular holder of the inner electrode terminal at the first end thereof into the second end portion of the cylindrical sensor element until a given clearance is formed between the protrusion and an end surface of the second end portion of the cylindrical sensor element to install the inner electrode terminal on the inner terminal mount of the sensor element.