US Patent 11702904 Toe valve having integral valve body sub and sleeve

Toe valves comprising a bore, a first sub, a second sub, and a housing. The bore extends through the valve. The first sub has separable elements. The separable elements comprise a first sub element and a sleeve element. The first sub element and sleeve element are joined by a relatively weak bridging portion adapted to break in a controlled manner in response to fluid pressure between the first sub element and the sleeve element. They thereby form an integral component comprised of the separable elements. The housing has a port and couples the first sub element and second sub.