Pressure lock bayonet closure
AssigneeHoover Universal, Inc.
InventorGregory S. Wobser
Life of this patent
Estimating the term…
Abstract
A carbonated beverage container having a cap which remains connected to the body of the container during the venting. Interlocking tabs are provided, two sets on the cap and one set on the container body, in a manner which allows the cap to be sufficiently opened to vent the internal pressure of the container. One set of tabs maintain the cap in a sealed relation with the container body while the second set of tabs prevents the cap further rotating during venting. Once the internal pressure has been sufficiently released, the second set of tabs can be disengaged and the cap removed from the container body. The cap is fully engaged and disengaged less than one full rotation of the cap relative to the container body.
Claims16
A closure assembly for a material packaged under pressure in a container having a hollow body defining an internal cavity and including a finish region having a substantially cylindrical neck portion formed at an upper end of said hollow body, said finish region terminating in a generally annular mouth defining an opening, a closure cap being engageable with said finish region in an obstructing relationship with said opening to close said container, said closure assembly comprising:
- a plurality of spaced apart retaining tabs formed on said finish region, a plurality of spaced apart primary tabs formed on said closure cap and being engageable with said retaining tabs to sealingly engage said closure cap with said finish region and maintain the pressure within the container, said closure cap being disengageable from said finish region upon rotation of less than three hundred and sixty degrees relative to said finish region, said closure cap being rotatable to a vent position in which said primary tabs are between said retaining tabs allowing said closure cap to move upwardly, a plurality of secondary tabs formed on said closure cap and being engageable with said retaining tabs in response to upward movement of said closure cap, means for preventing removal of said closure cap from said hollow body until the pressure has been substantially vented from the container.
A closure assembly for a material packaged under pressure in a container having a hollow body defining an internal cavity and including a finish region having a substantially cylindrical neck portion formed at an upper end of said hollow body, said finish region terminating in a generally annular mouth defining an opening, a closure cap being engageable with said finish region in an obstructing relationship with said opening to close said container, said closure assembly comprising:
- a plurality of spaced apart retaining tabs formed on said finish region, a plurality of spaced apart primary tabs formed on said closure cap and being engageable with said retaining tabs to sealingly engage said closure cap with said finish region and maintain the pressure within the container, said closure cap being disengageable from said finish region upon rotation of less than three hundred and sixty degrees relative to said finish region, said closure cap being rotatable to a vent position in which said primary tabs are between said retaining tabs allowing said closure cap to move upwardly, a plurality of secondary tabs formed on said closure cap and being engageable with said retaining tabs in response to upward movement of said closure cap to prevent removal of said closure cap from said hollow body until the pressure has been substantially vented from the container, said secondary tabs including a finger extending upwardly therefrom and interferingly engaging said retaining tabs when said secondary tabs are engaged therewith.
Dependencies are inferred from the claim text.