Method of stabilizing a plastic aerosol container
AssigneeGraham Packaging Company, L.P.
InventorsTapan Y. Patel, Thomas E. Nahill, Stephen R. Guerin
Life of this patent
Estimating the term…
Abstract
A plastic aerosol container includes a main body portion that is constructed and arranged to withstand aerosol pressurization within a range that is about 50-300 psig. The plastic aerosol container also includes a finish portion that is unitary with the main body portion. The finish portion may be threaded or unthreaded. The finish portion has a side wall, an upper sealing surface, at least one helical thread and a support ledge beneath the helical thread. Reinforcement structure is positioned beneath the support ledge for reinforcing the finish portion against deformation due to the pressurization. A method of stabilizing a plastic aerosol container is also disclosed.
Claims15
A plastic aerosol container, comprising:
- a main body portion that is constructed and arranged to withstand aerosol pressurization within a range that is about 50-300 psig;
- a finish portion that is unitary with the main body portion, the finish portion having a sidewall and an upper sealing surface, the finish portion further including securement means to secure an aerosol dispensing closure to the finish portion, a support ledge positioned beneath the securement means;
- and
- a reinforcement structure positioned beneath the support ledge for reinforcing the finish portion against deformation due to pressurization;
- wherein the reinforcement structure comprises a secondary flange that is unitary with the side wall of the finish portion;
- and
- the secondary flange has an outer circumference that is non-circular in at least one location.
A method of stabilizing an aerosol container of the type that has a plastic container having a finish portion with a sidewall, an upper sealing surface and a support ledge, the method comprising:
- forming a securement structure above the support ledge;
- forming reinforcement structure beneath the support ledge for reinforcing the finish portion against deformation due to pressurization;
- installing an aerosol dispensing closure to the securement structure on the finish portion;
- and
- pressurizing the container with an aerosol mixture that is pressurized within a range that is about 50-300 psig;
- wherein the reinforcement structure comprises a secondary flange that is unitary with the side wall of the finish portion, and has an outer circumference that is non-circular in at least one location.
Dependencies are inferred from the claim text.