US 5,310,074 AGranted

Canister with lid-release control mechanism

AssigneeBerry Plastics Corporation

InventorsDavid J. Jochem, Timmy L. Willett

Life of this patent

Estimating the term…

Abstract

A container includes a lid for covering the open mouth of a container. The container includes a rim around the open mouth and a pair of helical lid guides apended to the rim. The lid is rotatable to engage the helical lid guides and retain the lid in place on the container. The lid includes a first guide follower that is arranged to move around the rim during rotation of the lid relative to the container and engage one of the lid guides to hold the lid on the container.

Claims29

Dependent claims

A canister for holding a product, the canister comprising

a container formed to include a productreceiving chamber having an open mouth, a rim around the open mouth, a first lid guide having a leading end portion at one end and a trailing end portion at an opposite end, and a second lid guide having a leading end member at one end and a trailing end member at an opposite end, the first and second lid guides being helical in shape and appended to the rim to lie about the rim in series,
the first and second lid guides being inclined on the rim to position the leading end member of the second lid guide vertically above the trailing end portion of the first lid guide in a location between the open mouth of the product-receiving chamber and the trailing end portion of the first lid guide to define a first lock tab channel therebetween, and to position the leading end portion of the first lid guide vertically above the trailing end member of the second lid guide in a location between the open mouth of the productreceiving chamber and the trailing end member of the second lid guide to define a second lock tab channel therebetween, and
a lid including closure means for closing the open mouth of the product-receiving chamber and engagement means for rotatably engaging the first and second lid guides to retain the closure means on the container, the engagement means including first guide follower means for following a first helical path established by the first and second lid guides during rotation of the lid in a lid-removal direction about an axis of rotation and first lock tab means for engaging the trailing end portion of the first lid guide during rotation of the lid in the lid-removal direction to block further rotation of the lid relative to the container, the closure means including handgrip means for lifting the engagement means away from the container once the first lock tab means engages the trailing end portion of the first lid guide to pass the first lock tab means upwardly through the first lock tab channel so that the first lock tab means disengages the trailing end portion of the first lid guide and moves to a position above the first lid guide to permit continued rotation of the lid in the lid-removal direction relative to the container.

A canister for holding a product, the canister comprising

a container formed to include a productreceiving chamber having an open mouth, a rim around the open mouth, a helical first lid guide on the rim, and a helical second lid guide on the rim, the first lid guide including a first stop face, the second lid guide including a second stop face, and
a lid including closure means for closing open mouth of the product-receiving chamber and engagement means for rotatably engaging the first and second lid guides to retain the closure means on the container, the engagement means including first and second guide followers positioned to move around the rim between the first and second lid guides during rotation of the lid relative to the container, the first guide follower including first lock tab means for engaging the first stop face on the first lid guide to block continued rotation of the lid relative to the container in a lidremoval direction, the second guide follower including second lock tab means for engaging the second stop face on the second lid guide to block continued rotation of the lid relative to the container in the lid-removal direction, the lid further including handgrip means for lifting the first and second guide followers away from the container to disengage the first and second stop faces so that continued rotation of the lid relative to the container in the lid-removal direction is permitted.

Dependencies are inferred from the claim text.

patentgrep

Loading patent…

Abstract

A canister for holding a product, the canister comprising

a container formed to include a productreceiving chamber having an open mouth, a rim around the open mouth, a first lid guide having a leading end portion at one end and a trailing end portion at an opposite end, and a second lid guide having a leading end member at one end and a trailing end member at an opposite end, the first and second lid guides being helical in shape and appended to the rim to lie about the rim in series,
the first and second lid guides being inclined on the rim to position the leading end member of the second lid guide vertically above the trailing end portion of the first lid guide in a location between the open mouth of the product-receiving chamber and the trailing end portion of the first lid guide to define a first lock tab channel therebetween, and to position the leading end portion of the first lid guide vertically above the trailing end member of the second lid guide in a location between the open mouth of the productreceiving chamber and the trailing end member of the second lid guide to define a second lock tab channel therebetween, and
a lid including closure means for closing the open mouth of the product-receiving chamber and engagement means for rotatably engaging the first and second lid guides to retain the closure means on the container, the engagement means including first guide follower means for following a first helical path established by the first and second lid guides during rotation of the lid in a lid-removal direction about an axis of rotation and first lock tab means for engaging the trailing end portion of the first lid guide during rotation of the lid in the lid-removal direction to block further rotation of the lid relative to the container, the closure means including handgrip means for lifting the engagement means away from the container once the first lock tab means engages the trailing end portion of the first lid guide to pass the first lock tab means upwardly through the first lock tab channel so that the first lock tab means disengages the trailing end portion of the first lid guide and moves to a position above the first lid guide to permit continued rotation of the lid in the lid-removal direction relative to the container.