US Patent 11988067 Frangible disk sub, method and system

A frangible disk sub includes a housing, a carrier movably disposed in the housing, and a frangible disk sealedly disposed in the carrier. The sub further includes a breaker concealed within a breaker housing and a breaker housing movement inhibitor. A method includes pressuring the disk to exceed a threshold pressure, moving the disk, carrier and breaker mechanism relative to the housing. The method further includes causing the breaker to contact the stop, exposing a hard point of the breaker, and driving the disk into the hard point.