Non-resealable thermoformed packaging for liquid or pasty substances
AssigneeVirbac
InventorsBertrand Havrileck, Michel Robin
Life of this patent
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Abstract
The invention relates to a packaging comprising: a rigid shell that can be deformed by having a user apply pressure, said shell forming a storage space (1) containing a liquid or pasty substance; a breakage area (6) for releasing an applicator (3) for ejecting the liquid or pasty substance from said packaging; and a gripping area (5) including an escape path (7) for said liquid or pasty substance, the escape path being naturally closed when the user applies no pressure such that the liquid or pasty substance is prevented from being discharged after opening the packaging.
Claims22
A non-resealable thermoformed packaging for delivering a liquid or pasty substance, said packaging comprising an assembly of (i) a thermoformed bottom complex made in a rigid but deformable film, and (ii) a sealing complex made in a flexible film, wherein the packaging comprises:
- a storage space that can be deformed by means of pressure applied by a user, said storage space containing said liquid or pasty substance;
- a breakage area having a transverse weakened line for releasing an applicator in order to eject the liquid or pasty substance from said packaging;
- and
- a conduit extending from the storage space to the applicator for passage of said liquid or pasty substance from said storage space to an orifice on said applicator, said orifice being naturally open after the applicator has been released,
- a gripping area, wherein the gripping area extends from the storage space to the breakage area and includes an escape path for said liquid or pasty substance, wherein the escape path is formed by an unsealed, narrow contact area between the bottom complex and the sealing complex in the conduit, said contact area extending between lateral edges of the escape path, the bottom complex being sealingly assembled to the sealing complex at the lateral edges of the escape path, the escape path being naturally closed in the absence of pressure applied by the user to block the discharge of said liquid or pasty substance after the applicator has been released,
- wherein an upper portion of the packaging contains reinforcements arranged on both lateral sides of the escape path,
- wherein the packaging has a pre-opening configuration and a post-opening configuration,
- wherein, in the pre-opening configuration, the applicator has not been released and the volume formed by the storage space and the conduit is surrounded by a sealed area, and
- wherein, in the post-opening configuration, the applicator has been released and the orifice is naturally open, so that
- (i) the unsealed, narrow contact area of the escape path prevents liquid or pasty substance from escaping the storage area through the conduit in the absence of pressure applied to the storage space,
- (ii) the escape path enables discharge of the liquid or pasty substance from the storage space through the conduit when pressure is applied by the user to the storage space, wherein the pressure is propagated to the escape path and causes a deformation that leads to a disappearance of close contact in the unsealed, narrow contact area between the bottom complex and the sealing complex, and
- (iii) the reinforcements improve a rigidity of the upper portion of the packaging at the escape path.
Dependencies are inferred from the claim text.