Patent ID: 7959189
Filing Date: 2011-06-14
Classification: B23K,Y10T

Abstract:
1. A tube interface comprising: a first tube having an oblong opening in a wall of said first tube, said oblong opening exhibiting a first major dimension and a first minor dimension; and a second tube having an oblong end, said oblong end exhibiting a second major dimension and a second minor dimension, said second major dimension being less than said first major dimension, and said second minor dimension being less than said first minor dimension, said second tube including a shoulder about a perimeter of said second tube proximate said oblong end, said tube interface being formed by aligning said second major dimension of said second tube with said first major dimension of said first tube, inserting said oblong end into said oblong opening in said first tube, and turning said second tube in said oblong opening to move said second major dimension of said oblong end out of alignment with said first major dimension of said oblong opening to secure said second tube to said first tube, said shoulder abutting an outer wall of said first tube.