초록 ▼

A container for a carbonated beverage has an interrupted external screw thread surrounding its mouth opening engageable with an internal screw thread of a rotatable closure. The rotatable closure has a top member which is inwardly domed or indented or otherwise shaped to impart the necessary stiffne

A container for a carbonated beverage has an interrupted external screw thread surrounding its mouth opening engageable with an internal screw thread of a rotatable closure. The rotatable closure has a top member which is inwardly domed or indented or otherwise shaped to impart the necessary stiffness thereto. To prevent missiling on opening, pressure venting means are provided. Such pressure venting means may comprise slots extending through the closure, and/or the rotatable closure may be provided with stops which impart a two stage opening movement thereto. A rotatable closure with a low opening torque is made into parts and has a top member and a freely rotatable peripheral rim carried by the top member.

대표청구항 ▼

[ What is claimed is:] [1.]1. The combination of a container for a carbonated beverage and a rotatable closure for the container,the container comprising a body member fabricated from plastics material and having an opening at one end thereof, said opening having an annular periphery and defining an

[ What is claimed is:] [1.]1. The combination of a container for a carbonated beverage and a rotatable closure for the container,the container comprising a body member fabricated from plastics material and having an opening at one end thereof, said opening having an annular periphery and defining an unrestricted mouth opening for the container,the rotatable closure comprising a top member having a periphery and a separate depending rim, the rim being engageable with the periphery of the top member and being rotatable relative to the top member, and the combination further comprising first external engagement means formed on said body member proximate to said opening and second engagement means formed internally of the rim of said rotatable closure, said first and second engagement means being engageable to allow said rotatable closure to be engaged on and removed from the container by rotating the rim of the rotatable closure relative to the opening of the container,wherein the rotatable closure is selectively rotatable to a closed position that closes and seals said opening and being arranged, in said closed position, to withstand a pressure of and substantially maintain a pressurized state of the contents of the container when the container has been filled with a carbonated beverage,wherein a downwardly open annular channel extends around the periphery of the top member of said rotatable closure, the annular periphery of the container opening being received within said annular channel in the closed position of the rotatable closure to seal said openingwherein pressure venting means are defined by at least one of said container and said rotatable closure, for allowing pressure to be vented from the interior of the. container upon rotation of said rim of said rotatable closure out of said closed position during opening of the container,wherein the top member of said rotatable closure is shaped to stiffen the closure, andwherein said top member is inwardly domed.