초록 ▼

An improved thin-walled pressure vessel having a bladder is provided. This vessel includes a shell having an opening and a spout disposed around the opening. An improved cap normally closes this opening, secures the bladder to the shell of the vessel, and provides communication between the outside o

An improved thin-walled pressure vessel having a bladder is provided. This vessel includes a shell having an opening and a spout disposed around the opening. An improved cap normally closes this opening, secures the bladder to the shell of the vessel, and provides communication between the outside of the vessel and the inside of the bladder. The cap member comprises a main body member having an opening which receives a valve member. This valve member extends out through one end of the cap member. It also extends through the opposite end of the cap and into the bladder through an opening in the bladder. The valve member engages a portion of the bladder around the opening and clamps this portion against the main body member to secure the bladder to the cap member. As the pressure in the bladder increases, it forces the valve member further against the walls of the opening in the main body member, increasing the clamping force to firmly secure the bladder to the cap member.

대표청구항 ▼

A pressure vessel for containing fluids, said pressure vessel comprising: a thin thermoplastic inner liner providing an impervious barrier to said fluids, said inner liner having an opening therethrough; an outer layer covering said inner liner and providing strength, rigidity and structural integri

A pressure vessel for containing fluids, said pressure vessel comprising: a thin thermoplastic inner liner providing an impervious barrier to said fluids, said inner liner having an opening therethrough; an outer layer covering said inner liner and providing strength, rigidity and structural integrity to said vessel, said outer layer having an opening substantially coincident with said opening of said inner liner; said opening in said inner liner and said opening in said outer layer forming a port through said vessel; an elastic, inflatable bladder disposed in said inner liner and suspended within said fluids for displacing said fluids out of the vessel; and cap means normally closing said port, said cap means comprising a rigid main body member having an opening therethrough and valve means positioned in said opening of said main body member for closing said opening in said main body member, securing means for securing said cap means in leak-proof engagement over said port, said bladder having an opening and said valve means including a recess for receiving a portion of said bladder disposed around said opening in said bladder, said valve means clamping said portion of said bladder against the walls of said opening through said main body member of said cap means, suspending said bladder from said main body member, and providing communication with said bladder.