Mounted check valve assembly

Claim 1

In combination with a brake booster having a shell with an opening therein, a mounted check valve assembly comprising, a check valve having a cylindrical body defining an interior passage with a valve seat, a closure member movable in said passage against said seat to close said check valve, biasing means in said passage engaged with said closure member for biasing said closure member against said seat, said cylindrical body having an outer surface with an annular bulge defined around said cylindrical body intermediate a length of said cylindrical body, a pipe securely connected to said shell and around said opening, said pipe having an end portion spaced from said shell, said end portion having an interior with an internal projection extending in said interior, said cylindrical body of said check valve on one side of said annular bulge being threaded and being threadably engaged in said end portion of said pipe and with said internal projection, and a hose having an end portion extending over a full length of said cylindrical body and onto said end portion of said pipe, said pipe having another annular bulge formed in the end portion to be covered by said end portion of said hose, said annular bulge being circular, said cylindrical body of said check valve comprising a first part carrying said thread and one half of said circular annular bulge in a second part having a cylindrical outer surface and carrying a second half of said circular bulge, said first part defining said valve seat and said second part defining a portion of said passage containing said closure member and said biasing means.