Threadless magnetic oil drain plug

摘要

A threadless oil plug is provided for threadlessly sealing a drain hole of an oil pan. The plug has a disc-shaped magnet and a cylindrical stem that projects outwardly from the magnet. A gasket is fastened around the stem in juxtaposition with a planar surface of the magnet. The stem is adapted for insertion into the drain hole of an oil pan, thereby centering the magnet and magnetically sealing the gasket around the drain hole. A removal tool has a hand grip with a splash guard. The hand grip and the splash guard are attached to a magnet. To remove the plug, the magnet of the removal tool is magnetically fastened to the magnet of the plug so that the plug may be safely removed from the drain hole in one motion. The plug is reinstalled in the drain hole in one motion, without the use of any tools.

主权项

1. A device for sealing a drain hole of an oil pan, comprising:
a magnetic disc having a first surface that is sized and shaped to overlap an outer perimeter of a drain hole of an oil pan, said magnetic disc producing magnetic attractive forces which are sufficient to releasably attach said device to an outer surface of the oil pan in a threadless manner and such that said magnetic disc is positioned external to the oil pan; a stem extending from said first surface of said magnetic disc, said stem being sized and shaped to be removably inserted into the drain hole of the oil pan so as to facilitate overlapping alignment of said first surface of said magnetic disc with the drain hole of the oil pan; and a sealing mechanism positioned on said first surface of said magnetic disc, surrounding said stem, and sized and shaped to overlap the outer perimeter of the drain hole of the oil pan such that said magnetic attractive forces position said sealing mechanism against the outer surface of the oil pan to seal the drain hole in a liquid-tight manner.