Packaging unit
OwnerAlbert Geigerinventor
Life of this patent
Estimating the term…
Abstract
A packaging unit has a container closed by a safety plug which has a maximum diameter equal to the outer diameter of the container opening and a smooth exterior to avoid any gripping surface. A cylindrical lip adjacent to the peripheral edge of the plug cooperates with the inner surface of the container opening to seal the opening. A slide is movable along a radial direction of the plug to extend beyond the edge of the container opening to provide a gripping surface for removing the plug. Safety detents may be provided which must be manipulated to permit movement of the slide.
Claims20
A packaging unit having a container with a filling opening, the exterior surface of the container adjacent to said opening being free of any protuberances, and a removal-resistant closure closing said opening, said closure comprising:
- means cooperating with said opening to retain said closure on the container;
- a substantially smooth, sloped exterior surface on the peripheral portion adjacent to the periphery of said opening, the maximum dimensional extent of said closure being substantially equal to the exterior dimensional extent of the container at said opening, the dimensional extent and smooth, sloped exterior surface cooperating to avoid any surface which is useful in removing said closure;
- a slidable closure removal assisting member on said closure adapted to be displaced from a first position wherein said member is positioned within the peripheral confines of said closure, to a second position wherein a portion of said member extends beyond the periphery of said closure to provide a surface against which a force is applied to remove said closure;
- stop means on said closure;
- and
- coacting means on said slidable member cooperating with said stop means to prevent removal of said member from said closure.
A removal-resistant closure for application to a container to close the container opening, comprising:
- a tubular portion receivable within the container opening having an exterior projecting surface cooperating with the wall of the container opening to retain the closure on the container;
- a slidable removal assisting member on said closure adapted to be displaced from a first position wherein said member is positioned within the peripheral confines of said closure, to a second position wherein a portion of said member extends beyond the periphery of said closure to provide a surface against which a force may be applied to remove said closure;
- stop means on said closure;
- and
- coacting means on said slidable member cooperating with said stop means to prevent removal of said member from said closure.
Dependencies are inferred from the claim text.