Method and system for tightening threaded elements and certifying the connections and the devices for connecting threaded elements
OwnerDon Darrell Hickmaninventor
Life of this patent
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Abstract
A method and system certifies a joint between a first threaded element having a first shoulder and a second threaded element having a second shoulder and the equipment used to tighten the connection. The method tightens to a first position at which the first shoulder abuts the second shoulder. Marks are made that are aligned across the first element and the second element corresponding to the first position. The connection is loosened and then tightened to a second position complying with a predetermined tightening specification. The distance beyond the marks for the first position is measured to verify that it is within acceptable tolerances. If acceptable the connection and/or the tightening equipment can be certified.
Claims10
A method for certifying a joint between a first threaded element having a first shoulder and a second threaded element having a second shoulder, the method comprising:
- tightening to a first position at which the first shoulder abuts the second shoulder;
- making one or more marks aligned across the first element and the second element corresponding to the first position;
- loosening the connection;
- tightening to a second position complying with a predetermined tightening specification;
- verifying the distance beyond the marks for the first position is within acceptable tolerances;
- comparing connection information to historical information for determining whether the joint may be certified.
Dependencies are inferred from the claim text.