Abstract: A finger-operated pump is provided with a pump chamber and a fixed supply conduit communicating with the pump chamber. A movable sealing conduit is adapted to slidably and sealingly engage the supply conduit in a telescoping relationship. A primary piston is operably disposed in the chamber and defines a discharge passage out of the pump chamber. A poppet having a primary valve means for occluding the discharge passage is biased against the primary piston by a spring. The poppet has a secondary valve means for occluding flow through the sealing conduit that engages the poppet through a lost motion arrangement which is defined in part by the spring and which permits a limited degree of relative movement between the poppet and the sealing conduit.

Abstract: A container closure is provided with a structure that permits it to be readily disassembled and assembled for use on a container defining an opening communicating with the container interior. The closure includes a body and a cover separate from the body. The cover is adapted to be pivoted about an axis between a closed position occluding a dispensing orifice in the body and at least one open position spaced away from the dispensing orifice. An axis-defining structure is provided on either the cover or the body for defining the pivot axis of the closure, and also includes a cam surface around the axis. The other one of the cover or body is provided with a receiving structure for engaging the cam surface to mount the cover to the body for pivoting about the axis. Either or both of the cover and body is elastically deformable. The deformable structure is least stressed when the cover is at one of the open positions.

Abstract: A press-to-open dispensing closure is provided for the mouth of a container. It includes a closure body and a nozzle assembly carried by the closure body. The closure body has a deck extending across a portion of the container top, and the deck defines a port through which communication with the container interior is established. The nozzle assembly includes a forwardly projecting dispensing nozzle and a rearwardly projecting actuating member above the deck. The nozzle assembly is pivotably supported in the closure body to accommodate pivoting movement between an open and a closed position. In one embodiment, spring members are provided on the closure body and project upwardly for resiliently biasing the nozzle assembly toward the closed position.

Abstract: A dispensing package having a tamper-evident dispensing closure. A tamper-indicating removable strip is integrally formed with the closure and is secured to one of the closure body and closure cover via frangible bridging means. The closure hingedly connects the cover and body. The body defines a dispensing orifice and the cover seals the orifice. The strip defines spaces and the other one of the body and cover defines projections which extend into the spaces to resist relative movement of the body and cover unless the frangible bridging means are severed and thereby shows that access has been gained to the dispensing orifice. The closure is preferably generally circular and the tamper-indicating means are preferably within the perimeter of the closure.

Abstract: This invention relates to a thermoplastic tamper-indicating closure. The closure features a top wall and an annular downwardly depending sidewall. Connected to the lower end of the annular sidewall by way of an annular frangible area is an annular tamper-indicating band. The tamper-indicating band features an annular upper portion which depends downwardly from the frangible area. The band additionally has an annular lower portion hingedly connected to the annular upper portion and which comprises a plurality of spaced apart tabs with each tab connected to its neighboring tab by way of a flexible web. Each of the tabs preferably has a scalloped recess at their lower extent to provide some circumferential flexibility when the annular lower portion of the band is hinged inwardly from its molded position to its utilitarian position.

Abstract: This invention relates to a thermoplastic closure having a top wall and an annular sidewall downwardly depending therefrom. By way of an annular frangible area, there is an annular tamper-indicating band connected to the lowermost extent of the closure annular sidewall. The annular tamper-indicating band has an annular upper portion which depends downwardly from the annular frangible area. The band additionally has an annular lower portion which comprises a plurality of spaced-apart tabs, each tab connected to its neighboring tab by way of a flexible web. Each of the tabs has an outwardly extending projection at its lowermost extent. These projections each provide a surface which will be placed in a position of interference with a container annular flange when the tabs are bent inwardly and upwardly and the closure is fitted to the container. The annular upper portion is connected to the annular lower portion by way of an annular hinge.

Abstract: A closure for fitment to the threaded neck of a container is disclosed. The closure is especially adapted for use in packaging products such as carbonated beverages. The closure has a circular top wall and an annular skirt downwardly depending therefrom. The skirt carries about its inside surface a closure thread for cooperation with the neck thread of the container. A circular, flexible, resilient liner is positioned against but rotatable with respect to the inside surface of the top wall and has a diameter greater than the outside diameter of the container lip which defines the container mouth. There is provided an annular projection which is located adjacent the inside intersection of the top wall and the skirt. This projection has a configuration whereby it presses the liner on the outside edge of the container lip to form a gas-tight seal when the closure is fitted onto the container.

Abstract: This invention relates to a thermoplastic tamper-indicating closure. The closure features a top wall and an annular downwardly depending sidewall. Connected to the lower end of the annular sidewall by way of an annular area is an annular tamper-indicating band. The annular area has a frangible and a non-frangible portion. The tamper-indicating band has a vertical frangible area which extends across its width and which is preferably generally opposite the non-frangible area. The tamper-indicating band also features an annular upper portion which depends downwardly from the annular area. The band additionally has an annular lower portion which comprises a plurality of spaced-apart tabs, each tab connected to its neighboring tab by way of a flexible web. Each of the tabs has an outwardly extending projection at its lowermost extent.

Abstract: This invention relates to a thermoplastic tamper-indicating closure. The closure features a top wall and an annular downwardly depending sidewall. Connected to the lower end of the annular sidewall by way of an annular area is an annular tamper-indicating band. The annular area has a frangible and a non-frangible portion. The tamper-indicating band has a vertical frangible area which extends across its width and which is preferably generally opposite the non-frangible area. The tamper-indicating band also features an annular upper portion which depends downwrdly from the annular area. The band additionally has an annular lower portion hingedly connected to the annular upper portion and which comprises a plurality of spaced apart tabs with each tab connected to its neighboring tab by way of a flexible web.

Abstract: A thermoplastic closure suitable for fitment to a threaded container neck is disclosed. The closure has at least one venting groove in the sidewall traversing the closure thread. A rigidifying means is provided at the point of traverse of the venting groove and the closure thread. This rigidifying means has a perpendicular height measured from the sidewall less than the perpendicular height of the closure thread also measured from the sidewall. The rigidifying means provides hoop strength to the closure sidewall.

Abstract: An integral thermoplastic biasing hinge is disclosed. Hinged plate members are biased to achieve one of two positions, e.g., an open or closed position by the utilization of a spring member having two arms which are resiliently connected at one of their ends and hingedly connected to the plate members at their other ends.

Abstract: This invention relates to a tamperproof package which includes a thermoplastic closure for fitment to a container which has a threaded neck portion and an outwardly extending annular flange adjacent but beneath the threaded neck portion. The thermoplastic closure features an annular band which is attached to the lowermost extent of the closure sidewall by way of a plurality of spaced-apart frangible ribs. Pendantly attached to the lower portion of the annular band is a plurality of spaced-apart tabs. These tabs are inwardly foldable so that a tab portion will be in a position of interference with the container annular flange when the closure is fitted to the container. This interference prevents removal of the closure from the container unless there is fracture of the frangible ribs. Rib fracture indicates that the closure has been tampered with by removal or attempted removal of the closure.

Abstract: A thermoplastic closure suitable for fitment to a threaded container neck is disclosed. The closure has a top wall with an annular sidewall depending therefrom. To provide a gas-tight seal between the closure and the container, there is provided a gas-tight sealing system above the closure thread. About the inside surface of the annular sidewall is an extended closure thread which, due to its extent, requires the user to make two turning motions to achieve removal of the closure from the container. By requiring two turning motions, sufficient time is provided for venting of any pressurized gas from the container to the atmosphere. This venting can be facilitated by the utilization of any conventional venting means.

Abstract: A threaded thermoplastic closure having a free-floating liner is disclosed. To prevent backoff of the closure from a container, studs are provided on the top wall of the closure which anchor the closure to the liner, thus utilizing the resistance to rotation present between the liner and the container lip.

Abstract: A thermoplastic closure for fitment to a container for packaging product capable of producing internal container pressure, e.g., carbonated beverages, is disclosed. The closure comprises a top wall and an annular sidewall downwardly depending from the top wall. A closure thread on the inside surface of the sidewall is provided for cooperation with the container neck thread to achieve fitment of the closure to the container. A sealing system adjacent the top wall of the closure provides sealing of the closure to the container. Venting structure is provided on either the closure or the container or both for venting of pressurized gas from the container upon loss of the seal when the closure is rotated to remove it from the container. A heat-shrinkable tamper-indicating means is attached to the lowermost edge of the sidewall of the closure. Application of heat to the tamper-indicating means causes it to shrink towards the container and to a point of interference with a container flange.

Abstract: A thermoplastic tamperproof closure for fitment to a container is disclosed. The container has a threaded neck and an outwardly extending flange beneath the neck threads. The closure features a top wall with an annular sidewall downwardly depending therefrom and having about its inside surface a thread for cooperation with the container thread. Attached to the sidewall by a plurality of spaced apart, non-fracturable ribs is a fracturable band which will fit in a position of intereference under the container flange. This fit is achieved by applying heat to the ribs and band, after the closure is fitted to the container, causing the band and ribs to shrink to the position of interference.

Abstract: An integrally formed, one-piece, generally rectangular, plastic container particularly adapted for holding medicines is disclosed. The container includes a generally rectangular bottom section which is connected to a rectangular top section by means of an integrally formed, flexible, plastic hinge at the rear of the two sections. In the closed position, the top section overlies the bottom section and latch means lock the two sections together. The bottom section has a planar bottom wall, two opposed, upturned sidewalls, an upturned front wall, and an upturned back wall, all of which are integrally formed and connected to each other. The top section has a planar top wall, two downturned sidewalls and a downturned front wall, all of which are integrally formed and connected to each other, and a downturned back wall integrally formed and connected to the top wall. The thickness of the container at the connection of the downturned back wall and the top wall is reduced.

Abstract: A cap and valve actuator for spray dispensers used with aerosol containers, which includes a cap and a valve actuator member positioned therewithin and with the valve actuator member cooperating with the depressible discharge part of the spray dispenser, with the cap body having a circumference substantially that of the aerosol container so as not to extend substantially outwardly thereof, to permit the containers with caps thereon to be positioned contiguous to each other, and with the cap having an outlet opening at the front side thereof; the cap having a finger receiving socket extending inside the cap and accessible through a side rear opening in the cap body; the valve actuator having a socket for engagement with the valve stem of the aerosol container and a forwardly extending portion extending substantially to the front side outlet opening of the cap, with the forwardly extending portion of the actuator having a duct communicating with the socket engaging the valve stem of the aerosol container.