Patent ID: 8397608
Filing Date: 2013-03-19
Classification: B25B

Abstract:
1. A glow plug removal apparatus for removing a glow plug having a set of glow plug threads from a threaded glow plug port of a diesel engine, comprising: a hand tool with a handle portion and a working portion; a first body portion extends form a one of said angled portions and a second body portion extends from a second one of said angled portions; said first body portion having a generally semi-cylindrical configuration and a first threaded inner surface, and said second body portion having a generally semi-cylindrical configuration and a second threaded inner surface; said pair of interconnected arms being compressed to cause said first body portion and said second body portion to mate cylindrically and form an extension body, said extension body having a generally tubular configuration that defines a generally cylindrical cavity; said extension body, when positioned against said diesel engine, provides the user with an amount of additional leverage; said extension body causing said threaded inner surfaces to engage said set of glow plug threads when said glow plug is partially removed from said glow plug port; said threaded inner surfaces correspond to said glow plug mounting threads and said threaded glow plug port; said threaded inner surfaces being dimensioned to provide a threaded extension of said threaded glow plug port; and such that a user, after unscrewing the glow plug until the set of glow plug threads has substantially exited the port, can position the hand tool so as to locate the extension body about the threads of the glow plug and in position to provide additional threading of the opposing threaded inner surfaces to that of the port; and further that after a user positions the extension body against the diesel engine for additional leverage, the user can freely spin the glow plug threads within the hand tool without a pulling force so that the glow plug can be further rotated and thereby extracted from the port without damage to the glow plug, the glow plug threads, the threaded glow plug port, and the diesel engine and to ensure that there are no small or loose parts that can break or fall into the diesel engine during the glow plug removal operation.