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US 2021/0283755 A1Published application
Male fastener extractor device
OwnerDragana Doroslovacinventor
Life of this patent
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Abstract
A fastener extractor device for removing fasteners and disengaging the extractor from the so engaged fastener. The extractor includes a threaded main body with a hex drive head end portion and oppositely disposed elongated tool engagement hex body with multiple bracing sidewalls with independent contoured fastener engagement channels for fastener insertion and continued rotational removal. A tubular hex surface extractor nut is threadably disposed on the main body member for reversed thread rotation advancement to physically disengage the tool engagement body from the removed fastener.
Claims6
The fastener extractor device comprising,
- a shank bit body having a drive head end and oppositely disposed fastener socket engagement portion having a free end,
- a plurality of flat fastener engagement surfaces about said fastener engagement portion,
- at least one contoured fastener engagement channel extending translaterally in at least one of said flat fastener engagement surfaces,
- said fastener engagement channels having first and second parallel lateral fastener engagement edges,
- an external left-hand thread extending between said fastener socket engagement portion and said drive head end,
- a threaded shoulder nut fitting being laterally engaged on the exterior left hand thread portion of the shank bit body with an open-end surface having a plurality of unidirectional serrations for removed fastener engagement and release from said fastener extractor device upon rotation thereof.
3 more elements
Dependencies are inferred from the claim text.