초록 ▼

Broadly stated, this invention comprises a pressure container having an extruded plastic body portion and plastic end closures for the body portion, each end closure having a recess portion for receiving the respective ends of the body portion. In a preferred embodiment one of the closures is adapte

Broadly stated, this invention comprises a pressure container having an extruded plastic body portion and plastic end closures for the body portion, each end closure having a recess portion for receiving the respective ends of the body portion. In a preferred embodiment one of the closures is adapted to receive a conventional aerosol valve having a mounting cup for clinching onto the said closure. In a still further preferred embodiment, the non-valved closure has a port for bottom gassing of the container when the product to be discharged and the propellant are separated by a piston.

대표청구항 ▼

A method for manufacturing a container (10) suitable for dispensing pressurized products and comprising an extruded seamless plastic body portion (14) capable of withstanding pressures associated with the product to be dispensed, the body portion have protuberances (70) at each end, and plastic end

A method for manufacturing a container (10) suitable for dispensing pressurized products and comprising an extruded seamless plastic body portion (14) capable of withstanding pressures associated with the product to be dispensed, the body portion have protuberances (70) at each end, and plastic end closure members (12, 16) each having an annular recess (28, 54) with an undercut (32, 58) for receiving the respective end (30, 56) and protuberance (70) of the body portion (14) and thereby forming a fluid tight seal between the body portion (14) and the end closure members (12, 16), characterized in that the protuberances (70) on the ends (30, 56) of the tubular body portion (14) are formed in situ in said recesses (28, 54) by heating said ends to flow the plastics of the tubular body portion (14) into said undercuts (32, 58).