Patent ID: 11878847
Assignee: OWENS-BROCKWAY GLASS CONTAINER INC.
Field: Handling (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 18:
19. A threadless pressure retention closure for a container, comprising:
a pressure closure assembly including
a pressure relief valve having a central hub and a radially outer disc, and
an inner shell having an inner shell base wall with a central valve retention aperture for retaining the central hub of the pressure relief valve of the pressure closure assembly, a semi-circular pressure relief slot extending partially circumferentially around the central valve retention aperture for exposing the radially outer disc of the pressure relief valve, a pressure relief pad at one end of the valve release aperture, and an outer skirt extending away from the inner shell base wall and including a circumferentially interrupted portion and a circumferentially continuous portion; and

an outer release shell configured to be coupled to the pressure closure assembly, and including
a semi-circular major portion having a major base wall configured to rest on top of a corresponding portion of the inner shell base wall when assembled, and a pressure relief tab projecting therefrom corresponding to the semi-circular pressure relief slot of the inner shell and configured to rest on the pressure relief pad when assembled, the major portion further having an outer skirt extending away from the major base wall and configured to wrap around the circumferentially interrupted portion of the outer skirt of the inner shell when assembled, and
a semi-circular minor portion having a minor base wall stepped axially away from the major base wall and configured to be spaced above a corresponding portion of the inner shell base wall when assembled, and an outer skirt extending away from the minor base wall and diametrically larger than the outer skirt of the major portion.