Abstract: The invention relates to an improvement in a child resistant liquid seal closure and container combination. The container neck has one or more locking projections which engage one or more locking lugs on the interior surface of the closure to prevent rotational removal of the closure from the container. To remove the closure, the cap skirt must be squeezed and distorted to disengage the lugs radially outwardly from the locking projections on the container neck. A snap cap liner is retained within the closure, adjacent the inside surface of the top panel. As the closure is rotated onto the container, this liner snaps into place onto the top of the container neck, and forms a primary liquid seal. Although the final orientation of the outer closure and bottle is effected by the relative position of the locking lugs and projecting cam, this orientation does not affect the primary seal formed by the internal snap cap liner.

Abstract: A combination for containing medicine and the like provides a convertible feature such that a selection can be made between, on the one hand, a precautionary arrangement to prevent children from obtaining access to the medicine and, on the other hand, an easy open arrangement.

Abstract: A medication container is disclosed having structure which is both resistant to interaction with stored medicine and protects the medicine from deterioration. The container maintains the stored medicine available for almost instant self-administration by thw user. Plating is preferably provided to inhibit interaction of the container and the medicine. Alternately, the container is made from a material which is impervious and inert to the stored medicine. The container is configured to accommodate the desired dosage of medication. The preferred container has efficient double sealing to further protect the medicine. The container preferably consists of two members which are selectively secured together by novel threads which require only a small amount of relative rotation between the members for connection and disconnection. The threads are plated and configured to achieve a smooth but tight fit and to avoid bonding or sticking between the threads when the container has been closed.

Abstract: A child-proof container and cap combination is disclosed which seals the contents of the container against moisture vapor deterioration by making a seal which is "tight" by industry standards. The cap requires less than seven inch pounds of torque for removal. The seal is obtained by the cooperation of a flexible sealing lip on a separate element supported or disposed on the interior surface of the cap and cooperating with a rigid tapered sealing surface on the container.

Abstract: A method of sealing containers is disclosed in which a glass jar having a small upwardly convex bead on its rim is filled and sealed using a metal foil membrane with a heat seal resin on its undersurface and a plastic snap cap having a material thickness over the bead on the jar of at least twice the height of the bead. The foil membrane is induction heated while high unit pressure is applied against the top of the snap cap to impress the bead on the jar and foil membrane into the plastic of the cap to form the foil membrane over the convex surface on the bead and seal the membrane to the jar.

Abstract: A cap is provided for closing a container having a locking portion for use in a precautionary arrangement to prevent children from obtaining access into the container. The cap is convertible so as to cooperate with such a container to provide not only such a precautionary arrangement but also an alternative easy open arrangement.

Abstract: A closure assembly is disclosed which includes a plastic sealing ring having an annular channel in it for receiving and sealing against the entrance mouth of a container, a metal foil liner spanning the sealing ring and a flexible plastic overcap which receives the sealing ring and foil liner therein. The foil liner has a heat seal coating on one or both faces for sealing to the sealing ring and, in some packages, to the plastic overcap. The three-piece closure assembly is positioned on the entrance mouth of a container and the foil liner is induction heated to soften the heat seal coating thereon to seal the liner to the sealing ring. Induction heating may also be employed to adhesively join the foil liner to the undersurface of the overcap and seal the sealing ring to a foil layer in the container body.

Abstract: An improved home canning closure system is provided for a home canning jar featuring a plastic ring and a metal lid combination which is adapted to allow excess pressure to escape while preventing the escape of the contents from the container. The plastic ring includes an annular top panel portion and a skirt portion depending downwardly from the outer periphery of the top panel portion. The skirt portion incorporates buttress threads on its inner surface to engage threads on the external neck of the home canning jar. The plastic ring features an upwardly and outwardly inclined ramp portion on its lower surface and a thin section at the junction of the top panel and skirt portions which combine to form a spring member to maintain a constant force to bias the metal lid into sealing engagement with the upper rim on the home canning jar.

Abstract: A safety type cap for medicinal and similar containers capable of effecting a tight seal upon the container opening by means of a sealing flange extending laterally from the inner surface of the cap top, and which is deflected centripetally upon contact with the inner surface of the mouth of the container to result in resiliently bowing the top wall of the cap to result in increased outward pressure applied to the flange against the inner mouth surface. The radial thickness of the flange is substantially greater than the thickness of the cap top, so that the flange maintains a substantially undistorted shape during compression.

Abstract: A fitment-retaining closure adapted to facilitate simultaneous application of the closure and fitment to a container and allow the fitment to remain on the container upon removal of the closure. The closure includes a plurality of fitment-retaining, flexible projections extending downwardly from its top panel for grasping and retaining the fitment. Once the preassembled closure and fitment have been applied to a container, the closure may be removed without disturbing the fitment as the interference fit of the fitment to the container is greater than the frictional fit between the flexible projections on the closure and the fitment.

Abstract: A container and closure assembly wherein the container is adapted to be initially closed by a sealing means such as a vacuum disc. The closure has two positions of attachment to a bead encircling the container. In the first position of attachment, which accommodates the aforementioned sealing means, the container bead is engaged in an annular notch located in the inside wall of a closure skirt. The notch weakens the skirt so as to allow a distal end of the skirt to be torn from a remaining portion of the closure to free the remaining portion of the closure from attachment to the container bead. This exposes the sealing means so as to allow a removal thereof and access to the contents of the container. The remaining portion of the closure is then reattachable to the container bead at a second position of attachment rendered accessible by removal of the sealing means for reclosure of the container. In a first embodiment, the closure has retention ribs permitting preassembly of the sealing means to the closure.

Abstract: An improved vapor-seal, child-resistant closure and container combination is disclosed herein. The container comprises a cylindrical plastic body which is molded in one piece and has circumferentially spaced, radially extending projections on the upper end thereof that have notches therein. The closure comprises a one-piece plastic body having a top panel and an annular depending skirt with circumferentially spaced lugs extending radially inwardly for engagement with the notches. An annular integral rim or abutment is provided on the annular surface of the top panel of the closure and depends downwardly therefrom. A unique, one-piece, vapor-seal liner is interposed between the annular abutment and the lugs for engagement with the upper end of the container. The one-piece liner comprises a disc member which engages the annular rim of the container and includes a downwardly depending plug member which provides a vapor-tight seal with the inside surface of the container.

Abstract: A child safe closure of the kind which is secured to a container by interengagement of locking lugs within locking recesses is provided with a sealing member which provides a moisture tight seal with an internal wall of the container. The sealing member has a sealing bead which is inserted deeply within the container opening to a location adjacent or below the lower ends of integrally formed locking lugs or recesses on the container to avoid any depressions made in the interior wall of the container during cooling of thicker cross sectional portions of the container wall. A tapered lead-in surface on the container guides and centers the sealing bead as it travels downwardly toward its sealing position. Preferably, the sealing member is in the form of a separable, flexible sealing fitment retained within the closure cap and formed with an annular flange connected through an annular transverse V-shaped web to a circular planar crown.

Abstract: A vacuum closure for a container consisting of a substantially flat and relatively rigid closure member, material for forming a compression-seal disposed around the periphery of the closure member, and a cap-like outer fitment of relatively more flexible material, including a ring-shaped end panel portion extending radially over the outer periphery of the closure member, a skirt portion extending substantially perpendicularly thereto having T-shaped sealing beads in spaced apart circumferential relation on the interior surface thereof, and a lifting ring secured to the ring-shaped end panel for removing the fitment when desired.

Abstract: There is disclosed a safety closure cap for use with a bottle or other container having a neck portion. The closure cap is made of an elastically deformable or expandable synthetic plastic material. The neck portion of the bottle has on its outside a ring-shaped rib flattened at a portion of its circumference. The inside of the skirt of the cap has thereon several radially inwardly protruding lugs. These lugs can be forced to pass the rib on the neck portion in any angular position of the cap relative to the bottle neck by applying axially directed pressure to the closure cap thereby effectively locking the cap to the bottle. There is further provided on the inside of the cap a liner of moisture-absorbing material which is held in position by circumferentially spaced further lugs.

Abstract: An improved child resistant safety closure and container assembly of the type including a cap having an end wall with a skirt projecting therefrom and bayonet locking means projecting from the inner wall of the skirt for engagement with complementary bayonet locking means on the container by combined axial and rotary motion of the cap relative to the container. A combined spring and sealing member is carried by the cap, which, when the cap is applied to the container, resiliently maintains the cap and container in locked engagement, and also provides a moisture proof seal for the contents of the container. The spring and sealing member comprises a one-piece plastic body having a sealing portion and a biasing portion, the sealing portion including a radially projecting, annular sealing flange for overlying the rim of the container, and an axially extending sealing flange for engaging the inner surface of the mouth of the container.

Abstract: A sealing closure assembly for a container mouth including a closure cap and a sealing member having a sealing portion which sealingly engages with a releasable locking fit with the mouth of said container and a cap engaging portion slidably engageable by an axially outwardly facing shoulder of the closure cap. The sealing portion of said sealing member remains in place in sealing relation to the closure mouth for a portion of the rotation of said closure cap means when the same is rotated in a direction to unthread the same from the external screw thread means of the container and is forced from sealing and locking engagement with the container mouth by the shoulder of the closure cap solely by the force created by the further unthreading of the closure cap means from said external screw thread means of the closure cap means.

Abstract: In this two-piece closure for sealing containers, abutment, retaining and locking means are provided on the one hand on a flange of the main or inner cap and on the other hand on the bottom and/or inner surface of the skirt of the outer cap, said means co-acting with each other for securing the main cap flange in said outer cap, without any play, relative movement and flange distortion.

Abstract: A container closure assembly for a container comprising an outer cap of generally cup-like form having a top and a skirt depending from the outer peripheral edge of the top and means for detachably securing the same over the opening in a container, an annular pocket formed in the skirt of the outer cap adjacent said top and a liner assembly consisting of at least a disc-like core of a resilient material, a shell for the core having a portion confronting the inside of the top of the outer cap and a locking portion to hold the core in said shell, said shell being of a predetermined dimension to permit limited axial movement in the pocket in the outer cap and anti-friction means between the shell and outer cap to permit relative rotation between the outer cap and the liner assembly.