The Adjustable Union allows the distance between two pieces of equipment to be adjusted per downhole requirements prior to placing equipment.
The Annulus Operated Tubing Drain is an annulus pressure operated drain valve that can be opened to allow fluid to drain from the tubing on a trip out.
The Bit Release Joint is used in operations for drilling out cement, cast iron bridge plugs, composite bridge plugs, and other drillable tools and thereby leaving the drill string intact as the production string.