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US 9,957,859 B2Granted
Magnetic drain plug
OwnerRonald Coheninventor
Life of this patent
Estimating the term…
Abstract
A magnetic drain plug includes a plug body that has a head section and a screw section protruding from the head section. The screw section is includes external threads for threading into a drain hole of a device containing lubricating fluid. The plug body has an axial bore for receiving a removable magnet through the head section. The axial bore has an axial depth such that a bottom of the axial bore extends into the screw section.
Claims20
A drain plug comprising:
- a plug body having a head section and a screw section protruding from the head section, the screw section including external threads for threading into a drain hole of a device containing lubricating fluid, the plug body having a blind axial bore for receiving a removable magnet through the head section, the axial bore having an axial depth such that a bottom of the axial bore is at a predetermined distance from a tip of the screw section and the axial bore is not in fluid communication with the lubricating fluid when the plug body is threaded into the drain hole of the device.
A magnetic drain plug for an automotive oil pan, the magnetic drain plug comprising:
- a plug body having a head section and a screw section protruding from the head section, the screw section including external threads for threading into a drain hole of the automotive oil pan, the plug body having a blind axial bore through the head section and extending to an axial depth such that a bottom of the axial bore is at a predetermined distance from a tip of the screw section and the axial bore is not in fluid communication with lubricating fluid when the plug body is threaded into the drain hole of the automotive oil pan;
- and
- a removable magnet to be received by the axial bore of the plug body through the head section.
A drain plug comprising:
- a plug body having a head section and a screw section protruding from the head section, the screw section including external threads for threading into a drain hole of a device containing lubricating fluid, the plug body having a blind axial bore for receiving a removable magnet through the head section, the axial bore having an axial depth such that a bottom of the axial bore is at a predetermined distance from a tip of the screw section and the axial bore is not in fluid communication with the lubricating fluid when the plug body is threaded into the drain hole of the device, the head section including internal threads;
- and
- a cap including external threads for threading into the internal threads of the head section of the plug body.
Dependencies are inferred from the claim text.