US Patent 12060759 Internal latching apparatus

An internal locking ring assembly for a wellhead system that includes a compact single body locking ring design that eliminates the need for a separate casing head and housing configuration or the use of numerous lockdown pins, therefore increasing the safety of the entire drilling operation. The internal locking ring includes outer and inner diameter grooves and angles to accommodate a running tool for collapsing the locking ring for positing into wellhead seats all at lower forces than what is typical due to the lower retrieving torque when trying to retrieve the packoff. Such lower retrieving torque and force allows the use of smaller cross sections of a running tool.