US 5,431,283 AGranted

Blister pack opener-ejector

AssigneePrimary Delivery Systems, Inc.

InventorsJack Weinstein, John E. Harrold

Life of this patent

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Abstract

The present invention is directed to a blister pack opener which includes a structure designed to receive a soft pack of individually segregated unit dosages of medication. The opener or soft pack puncturing mechanism has a first component, a second component and a third component which are hingedly connected to one another. The first component is a blister pusher and has a unit dosage section base protrusion thereon. The second component is a blister positioner and has an orifice located thereon which is of sufficient size to receive a unit dosage section of a soft pack commonly referred to as a "blister" and the third component is a blister cutter/ejector and has a cutting protrusion adapted to nest within the orifice of the second component and around the base protrusion of the first component so as to cut the packaging and eject the cut piece of the packaging along with the pill. Thus, the cutting protrusion has sufficient height so as to puncture a blister or dosage unit section of a soft pack medication. When a pack is placed within the first component so that dosage unit or "blister" is placed within the orifice of the second component, and then the second component and third component are hingedly pushed downwardly, the cutting protrusion on the third component will puncture the foil or flat element of the blister pack. Preferably, the cutting protrusion has toothed edges on this protrusion to enhance puncturing.

Claims14

Dependent claims

A soft pack opener, which comprises:

(a) a first component, being a blister pusher, and having a bottom and a blister base protrusion on said bottom of a respective size to receive a corresponding dosage unit section of a soft pack;
(b) a second component being hingedly connected to said first component, said second component being a blister positioner and having a guide orifice therethrough of sufficient size and height so as to fit over said base protrusion of said first component;
and,
(c) a third component, being a cutter/ejector, said third component having a puncture mechanism, said puncture mechanism having a puncture mechanism protrusion of a predetermined size and shape selected so as to nest within said guide orifice of said second component, the puncture mechanism protrusion having a predetermined height and a cross-sectional opening, both relating to the dimensions of a dosage unit of a soft pack backing, the predetermined height and cross-sectional opening being selected so as to puncture said dosage unit of a soft pack backing and so as to retain space between the puncture mechanism protrusion and the dosage unit when said dosage unit section is placed within upon said base protrusion of said first component and in said guide orifice of said second component while said second component and said third component are hingedly pushed downwardly toward said first component, said third component being hingedly connected to at least one of said first component and said second component.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 08/222,403Filed 1 Apr 1994 · continuation in part
Priority: 21 Jan 1993
Granted: 11 Jul 1995
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

B65D 5/42
Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made…
B65B 69/0041
By cutting: by puncturing
B65D 5/5286
Contents attached to or resting on the external surface of the container: the container being provided with an opening or weakened area in which…
B65D 77/40
Opening or contents-removing devices added or incorporated during filling or closing of containers: rigid cutting or tearing devices