Electric heating – Metal heating – Of cylinders
Reexamination Certificate
2005-10-11
2005-10-11
Stoner, Kiley S. (Department: 1725)
Electric heating
Metal heating
Of cylinders
C219S061000, C228S245000, C228S173400
Reexamination Certificate
active
06953907
ABSTRACT:
A method for metallurgically joining a tube to a member. A tube having a flange is obtained, and a member is obtained. The tube and the member are positioned with the flange contacting the member directly and/or indirectly through an intervening welding/brazing joining material. The flange and/or the member is segmented and their contact is a segmented contact at spaced-apart contact areas between the flange and the member. A resistance welding/brazing current path is created,through the tube and the member at a first contact area creating a first weld/braze zone which includes at least some of the flange and at least some of the member. Then, a resistance welding/brazing current path is created through the tube and the member at a different second contact area creating a second weld/braze zone which includes at least some of the flange and at least some of the member.
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Ananthanarayanan Venkatasubramanian
Marczewski Richard W.
Ramachandra Dharmendra M.
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