Patent ID: 7675008
Filing Date: 2010-03-09
Classification: B21D,H01R,H05B,Y10T

Abstract:
1. A method of attaching a connector bushing to an end of a tubular electric heating element comprising: providing an elongated sleeve-like bushing having a bore extending along the longitudinal axis thereof; said bushing being of a deformable, crimpable metal; inserting an end portion of a tubular metal electric heating element into said bore such that said end portion extends along and within said bore, said bore and said element having diameters selected such that a close sliding fit exists between them; positioning a portion of the bushing together with the element end portion located therein into a crimping machine having a plurality of radially arranged jaws in such manner that said jaws surround said bushing portion; activating said crimping machine to cause said jaws to advance radially toward and to engage said bushing portion all around the circumference thereof with sufficient force to radially deform and crimp the metal of said bushing portion into a direct force fit engagement to provide a fluid tight seal with the heating element end portion.