Neck finish for a wide mouth container
AssigneeWest Penn Plastics
InventorMichael Marino
Life of this patent
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Abstract
A neck finish on a wide mouth container to accept a tamper evident cap to provide multiple sealing surfaces therebetween. The neck finish having cooperating upper and lower locking ribs and grooves holding the cap in place until a majority portion of the cap is removed by tearing along a horizontal frangible line, disengaging one of the locking ribs from the neck finish. The neck finish provides multiple sealing surfaces in both vertical and horizontal alignment.
Claims9
A neck finish and tamper indicating cap for a wide mouth container, said neck finish comprising a container neck having a cap receiving finish, said cap receiving finish formed with a cylindrical upper end having a first inwardly curving outer surface and a lower end having an upwardly and inwardly curving section, a first vertical smooth surface immediately thereabove, a first inwardly and upwardly angled surface thereabove, a second vertical smooth surface immediately thereabove, a first outwardly and upwardly angled outer surface immediately above said second vertical smooth surface, a third vertical smooth surface immediately above;
- a second inwardly and upwardly angled surface immediately above said third vertical smooth surface, a first annular groove in said outer surface formed by said first inwardly and upwardly angled surface and said first outwardly and upwardly angled outer surface, with said second vertical smooth surface therebetween, a fourth vertical smooth surface immediately above said second inwardly and upwardly angled surface, a second outwardly and upwardly angled surface immediately below said cylindrical upper end inwardly curving outer surface, a second annular groove in said cap receiving finish outer surface defined by said second inwardly and upwardly angled surface and said second outwardly and upwardly angled surface and said fourth vertical smooth surface therebetween.
Dependencies are inferred from the claim text.