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US 5,513,545 AGranted
Head bolt stud and extractor tool
OwnerMark Georgeinventor
Life of this patent
Estimating the term…
Abstract
A tool, comprising a head bolt stud and extractor, useful in the alignment of a cylinder head to an engine block when re-attaching the cylinder head to the engine block following replacement of the cylinder head seals.
Claims12
Head bolt studs useful in the alignment of a cylinder head to an engine block after replacement of the cylinder head seals on said engine block, wherein:
- said head bolt studs provide, on one end, external right-hand threads for screwable insertion into said engine block;
- said head bolt studs provide, on their end opposite said external right-hand threads, external left-hand threads;
- in combination with a head bolt stud extractor which provides, on one end, internal left-hand threads to screwably engage said external left-hand threads of said head bolt studs, and which provides, on its end opposite said internal left-hand threads, a handle or aperture
- whereby the torque applied to said head bolt stud extractor to screwably engage said external left-hand threads of said head bolt studs acts, once said external left-hand threads and said internal left-hand threads are fully engaged, to screwably extract said head bolt stud from said engine block.
1 more element
Head bolt studs useful in the alignment of a cylinder head to an engine block after replacement of the cylinder head seals on said engine block, wherein:
- said head bolt studs provide, on one end, external right-hand threads for screwable insertion into said engine block;
- said head bolt studs provide, on their end opposite their external right-hand threads, internal left-hand threads;
- in combination with a head bolt stud extractor which provides, on one end, external left-hand threads to screwably engage said internal left-hand threads of said head bolt studs, and which provides, on its end opposite said external left-hand threads, a handle or aperture
- whereby the torque applied to said head bolt stud extractor to screwably engage said internal left-hand threads of said head bolt studs acts, once said internal left-hand threads and said external left-hand threads are fully engaged, to screwably extract said head bolt stud from said engine block.
1 more element
Dependencies are inferred from the claim text.