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US 11,077,537 B2Granted
Adjustable chain wrench and method of use
OwnerClair D. Nilesinventor
Life of this patent
Estimating the term…
Abstract
A chain wrench which utilizes ordinary high-speed drive chain to form an adjustable, replaceable chain wrench of unlimited length potential. A sprocket for gripping at the head of the wrench, and allows the chain to nearly completely wrap about the object to be turned or held, preventing the need for a gripping portion which tends to damage or crush the object being turned or held. Multiple such chains could be used simultaneously.
Claims9
A chain wrench comprising:
- a handle with a gripping end and a wrench end;
- said wrench end comprising a first sprocket connected to said wrench end via a first pin, said pin fixing said first sprocket about said wrench end;
- a first pivot arm pivotally connected to said first sprocket, said first pivot arm ending in a chain connector;
- a first chain comprising a high speed chain of a first length having a first end affixed to said chain connector and a second end extending away from said chain connector;
- said first chain configured to be wrapped about a body, such that said second end of said first chain is wrapped about said body and placed over said first sprocket;
- said first sprocket and first chain are radially spaced from a first side of said handle;
- a second sprocket connected to said wrench end via a second pin, said second pin fixing said second sprocket about said wrench end;
- a second pivot arm pivotally connected to said second sprocket, said second pivot arm ending at said chain connector;
- a second chain comprising a high-speed chain of a second length having a first end affixed to said chain connector and a second end extending away from said chain connector;
- said second chain configured to be wrapped about said body, such that said second end of said second chain is wrapped about said body and placed over said second sprocket;
- said second sprocket and second chain are radially spaced from a second side of said handle, said second side of said handle being opposite to said first side;
- whereby said first chain is tightened about said body, such that said second chain wraps a perimeter comprising at least 90% of a perimeter of said body;
- and
- whereby said first chain is tightened about said body, such that said first chain wraps a perimeter comprising at least 90% of a perimeter of said body.
11 more elements
A chain wrench comprising:
- a handle with a gripping end and a wrench end;
- said wrench end comprising a first sprocket connected to said wrench end via a first pin, said first pin fixing said first sprocket about said wrench end;
- said wrench end further comprising a second sprocket connected to said wrench end via a second pin, said second pin fixing said second sprocket about said wrench end;
- a first pivot arm pivotally connected to said first sprocket, said first pivot arm ending in a chain connector;
- a second pivot arm pivotally connected to said second sprocket, said second pivot arm ending in said chain connector;
- a first chain comprising a high speed chain of a first length having a first end affixed to said chain connector and a second end extending away from said chain connector;
- said first chain configured to be wrapped about a body, such that said second end of said first chain is wrapped about said body, under said chain connector, and placed over said first sprocket;
- a second chain comprising a high speed chain of a first length having a first end affixed to said chain connector and a second end extending away from said chain connector;
- said second chain configured to be wrapped about a body, such that said second end of said second chain is wrapped about said body, under said chain connector, and placed over said second sprocket;
- said first sprocket and first chain are radially spaced from a first side of said handle;
- said second sprocket and second chain are radially spaced from a second side of said handle, said second side of said handle being opposite to said first side;
- and
- whereby said first chain is tightened about said body, such that said first chain wraps a perimeter comprising at least 90% of a first circumference of said body and said second chain is tightened about said body, such that said second chain wraps a perimeter comprising at least 90% of a second circumference about said body.
10 more elements
A method of turning a body with a chain wrench, the method comprising the steps:
- wrapping a first chain about a body, said first chain having a first end connected to a chain connector and a second end being free;
- wrapping said first chain second end around said body, under said chain connector, and onto a first sprocket such that said first chain contacts at least 90% of a perimeter about said body, said first sprocket being connected to said chain connector via a first pivot arm;
- linking links of said first chain into teeth of said first sprocket and tightening said first chain about said body;
- rotating a handle connected to said sprocket, pivot arm, and chain connector such that said first chain further tightens about said body;
- wrapping a second chain about said body, said second chain having a first end connected to said chain connector and a second end being free;
- wrapping said second chain second end around said body, under said chain connector, and onto a second sprocket such that said second chain contacts at least 90% of a perimeter about said body, said second sprocket being connected to said chain connector via a second pivot arm;
- linking links of said second chain into teeth of said second sprocket and tightening said second chain about said body;
- wherein said first sprocket and first chain are radially spaced from a first side of said handle;
- wherein said second sprocket and second chain are radially spaced from a second side of said handle, said second side of said handle being opposite to said first side;
- and
- rotating said body by rotating said handle as said first chain grips said body.
8 more elements
Dependencies are inferred from the claim text.