US Patent 11199348 Refrigerant charging hose assembly

A refrigerant charging hose assembly including a can tap connectable to the self-sealing valve of a R-1234yf refrigerant can with a one-half inch ACME left-handed thread on a self-sealing cap, a length of refrigerant charging hose, and a coupler fitting on the other end connectable to an R-1234yf automotive air conditioning system. An alternate embodiment of the refrigerant charging assembly can serve as a refrigerant charging and pressure testing hose assembly and includes a pressure gauge installed in the hose between the can tap and the coupler fitting.