초록 ▼

Easy opening blister-type packaging unit (1) having upper and lower walls (2, 2') and a convenient tear-open strip (5, 6, 7) inward of a peripheral seal (4) joining the walls to one another, and method of separating the seal from the blister pack to access a stored article, such as a razor set (16).

Easy opening blister-type packaging unit (1) having upper and lower walls (2, 2') and a convenient tear-open strip (5, 6, 7) inward of a peripheral seal (4) joining the walls to one another, and method of separating the seal from the blister pack to access a stored article, such as a razor set (16). Packaging unit (1) has upper and lower walls sealed together at peripheral joint (4) and has inward thereof a weakened region (5) formed through preferably both upper and lower walls, defining an opening strip (7). In preferred embodiments the upper and lower walls are semi-rigid plastic panels heat welded together along a periphery and perforated (6) adjacent the weld. To easily access the stored article, the user ruptures the weakened region, tears the opening strip away from the packaging unit to cause the upper and lower plastic material walls to separate. The pack can open like a clam-shell about a hinge (11) formed by second peripheral joint (9) and/or stepped portions (10) on a side opposite the tear strip.

대표청구항 ▼

[ What is claimed is:] [1.]1. A packaging unit comprising:two spaced-apart upper and lower walls formed to define an article-receiving region between them,at least a first of said walls being formed of semi-rigid plastic material,said walls being sealed together at a first peripheral joint, andsaid

[ What is claimed is:] [1.]1. A packaging unit comprising:two spaced-apart upper and lower walls formed to define an article-receiving region between them,at least a first of said walls being formed of semi-rigid plastic material,said walls being sealed together at a first peripheral joint, andsaid walls having along, and inward of, said peripheral joint, a weakened region formed in both said walls,said walls being hermetically unsealed in a laterally inward region between said weakened region and said article-receiving region,said weakened region extending along a sufficient extent of the perimeter of said packaging unit and said weakened region is rupturable by a user to separate said peripheral joint from said upper and lower walls and thereupon the upper wall, in a region along a first portion of the perimeter of the packaging unit extending along the ruptured peripheral joint and along second portion of the perimeter of the packaging unit extending at least partially transverse to the first portion, is readily separable away from the underlying lower wall upon application of a manual forece in order to access said article-receiving region.