US Patent 11834914 Quick coupling drill pipe connector

A quick connect pipe connection for drill pipe may include a box end having an annular end surface that gives way internally to a receiving portion and externally to an engagement portion. The connection may also include a pin end configured for rotationally and longitudinally engaging the box end. The pin end may include a tapered portion configured for longitudinal insertion into the receiving portion and resisting relative rotation between the box end and the pin end. The pin end may also include a collar configured for sleeving over the engagement portion of the box end and resisting relative longitudinal motion between the box end and the pin end.