Patent ID: 6378167
Filing Date: 2002-04-30
Classification: B25B,F01M,Y10T

Abstract:
A vehicle engine oil pan heater bushing comprising:a bushing body having an enlarged head, said head having a hole therethrough which is sized to sealingly receive and hold an oil pan heater; an expandable tubular section extending from said enlarged head and adapted to fit through an engine oil pan heater bushing hole, said expandable tubular section having an internal smooth wall extending from said enlarged head a predetermined distance, a non-expandable tubular section extending from said expandable tubular section, said non-expandable tubular section having an annular internal thread section extending from a distal end, crimp means to permit the expandable tubular section to crimp at said smooth wall and form an exterior flange within said oil pan opposed to said enlarged head when a draw bolt is threaded into said non-expandable tubular section, and an annular o-ring groove formed in the underside of said enlarged head, said annular groove being sized to hold an o-ring, said enlarged head and annular groove o-ring being sized to surround said heater bushing hole and sealingly contact an external surface of the oil pan when said expandable and non-expandable tubular sections are placed into the oil pan through said heater bushing hole and said exterior flange is formed with said oil pan between said head and said exterior flange.