US5310060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tamper-evident, child-resistant blister packages for medicaments and non-medicaments
Assignee: GD Searle LLC
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Filing: 1992-10-13
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Granted: 1994-05-10
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Expires: 2012-10-13
Abstract
Abstract The present invention concerns a novel tamper-evident, child-resistant blister package for medicaments and nonmedicaments which is user-friendly, but which is difficult to open by young children and impaired adults. Because the blister package has pull tabs which are designed to be pulled away from, rather than towards, article-receiving pockets which may be present in the blister package other than the article-receiving pocket being accessed, a young child or user of the blister package can only access one article-receiving pocket at a time, whether deliberately or inadvertently. The blister package of the invention is an attractive and inexpensive package for the merchandising of pharmaceutical and other products which is constructed in a manner which facilitates mass production.
Inventors
- 👤 John M. Bitner
- 👤 Craig T. Vanderburg
- 👤 Curtis E. Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:44
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/28; B65D75/30; B65D75/32; B65D75/325; B65D75/327; B65D2575/00; B65D2575/28; B65D2575/30; B65D2575/32; B65D2575/3209; B65D2575/3218; B65D2575/3227; B65D2575/3236; Y; Y10; Y10S; Y10S206/00; Y10S206/807
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
281 words
A tamper-evident, child-resistant blister package for medicaments and nonmedicaments comprising: (a) a top layer; (b) a nonrupturable film layer attached to an inner surface of said top layer; (c) a rupturable film layer attached to that side of said nonrupturable film layer which is not attached to said top layer; (d) a blister sheet attached to that side of said rupturable film layer which is not attached to said nonrupturable film layer, said blister sheet containing one or more article-receiving pockets which are not separable from said blister package; (e) perforation means located adjacent to each article-receiving pocket and extending through each of said top layer, said nonrupturable film layer, said rupturable film layer and said blister sheet, said perforation means, when punctured, commencing the opening of said blister package, and generating one or more pull tabs which extend towards and across their adjacent article-receiving pocket, but not across other article-receiving pockets; (f) one or more depressions present in said blister sheet proximately located to said perforation means, in which said rupturable film layer is not adhered to said blister sheet; and (g) at least one stop means located between each perforation means and its adjacent article-receiving pocket, and extending through each of said top layer, said nonrupturable film layer, said rupturable film layer and said blister sheet, for selectively separating said nonrupturable film layer from said rupturable film layer and exposing said rupturable film layer extending over said article-receiving pocket when said nonrupturable film layer is directionally pulled across said article-receiving pocket so that the contents of said article-receiving pocket can be pushed through said rupturable film layer, with said blister package remaining intact at each of its outer edges.
Claim 2
Dependent Claim
281 words
A tamper-evident, child-resistant blister package for medicaments and nonmedicaments comprising: (a) a top layer; (b) a nonrupturable film layer attached to an inner surface of said top layer; (c) a rupturable film layer attached to that side of said nonrupturable film layer which is not attached to said top layer; (d) a blister sheet attached to that side of said rupturable film layer which is not attached to said nonrupturable film layer, said blister sheet containing one or more article-receiving pockets which are not separable from said blister package; (e) perforation means located adjacent to each article-receiving pocket and extending through each of said top layer, said nonrupturable film layer, said rupturable film layer and said blister sheet, said perforation means, when punctured, commencing the opening of said blister package, and generating one or more pull tabs which extend towards and across their adjacent article-receiving pocket, but not across other article-receiving pockets; (f) one or more depressions present in said blister sheet proximately located to said perforation means, in which said rupturable film layer is not adhered to said blister sheet; and (g) at least one stop means located between each perforation means and its adjacent article-receiving pocket, and extending through each of said top layer, said nonrupturable film layer, said rupturable film layer and said blister sheet, for selectively separating said nonrupturable film layer from said rupturable film layer and exposing said rupturable film layer extending over said article-receiving pocket when said nonrupturable film layer is directionally pulled across said article-receiving pocket so that the contents of said article-receiving pocket can be pushed through said rupturable film layer, with said blister package remaining intact at each of its outer edges.
Claim 3
Dependent Claim
14 words
The blister package of claim 1 which additionally comprises one or more support ridges.
Claim 4
Dependent Claim
25 words
The blister package of claim 1 which additionally comprises one or more nonrupturable film layer dividers in said blister sheet located between adjacent article-receiving pockets.
Claim 5
Dependent Claim
14 words
The blister package of claim 3 which additionally comprises one or more support ridges.
Claim 6
Dependent Claim
16 words
The blister package of claims 1 wherein said top layer is paper or a printable film.
Claim 7
Dependent Claim
24 words
The blister package of claim 5 wherein the basis weight of said top layer ranges from about 20 to about 30 pounds per ream.
Claim 8
Dependent Claim
24 words
The blister package of claim 6 wherein said nonrupturable film layer is a polyester, polyolefin, polyamide, polycarbonate or polysulfone film, or a combination thereof.
Claim 9
Dependent Claim
22 words
The blister package of claim 7 wherein the thickness of said nonrupturable film layer ranges from about 0.5 to about 4 mm.
Claim 10
Dependent Claim
16 words
The blister package of claim 8 wherein said rupturable film layer is paper, plastic or foil.
Claim 11
Dependent Claim
22 words
The blister package of claim 9 wherein the thickness of said rupturable film layer ranges from about 0.00035 to about 0.03 inches.
Claim 12
Dependent Claim
20 words
The blister package of claim 10 wherein said blister sheet is polyvinyl chloride, polystyrene, nylon, polyethylene, polypropylene or polyethylene terephthalate.
Claim 13
Dependent Claim
21 words
The blister package of claim 11 wherein the thickness of said blister sheet ranges from about 7.5 to about 30 mm.
Claim 14
Dependent Claim
15 words
The blister package of claim 12 wherein said perforation means is a plurality of perforations.
Claim 15
Dependent Claim
14 words
The blister package of claim 13 wherein said stop means is a die cut.
Claim 16
Dependent Claim
22 words
The blister package of claim 14 wherein said top layer is attached to said nonrupturable film layer by a first adhesive layer.
Claim 17
Dependent Claim
24 words
The blister package of claim 15 wherein said nonrupturable film layer is attached to said rupturable film layer by a pressure sensitive adhesive layer.
Claim 18
Dependent Claim
22 words
The blister package of claim 16 wherein said rupturable film layer is attached to said blister sheet by a heat seal coating.
Claim 19
Dependent Claim
14 words
The blister package of claim 17 wherein said top layer is calendared bleach paper.
Claim 20
Dependent Claim
15 words
The blister package of claim 18 wherein said nonrupturable film layer is 48 gauge polyester.
Claim 21
Dependent Claim
14 words
The blister package of claim 19 wherein said rupturable film layer is aluminum foil.
Claim 22
Dependent Claim
13 words
The blister package of claim 20 wherein said blister sheet is polyvinyl chloride.
Claim 23
Dependent Claim
18 words
The blister package of claim 21 wherein the thickness of said nonrupturable film layer is about 0.75 mm.
Claim 24
Dependent Claim
18 words
The blister package of claim 22 wherein the thickness of said rupturable film layer is about 0.001 inch.
Claim 25
Dependent Claim
17 words
The blister package of claim 23 wherein the thickness of said blister sheet is about 15 mm.
Claim 26
Dependent Claim
47 words
The blister package of claim 24 wherein said first adhesive layer is polyethylene, polyester, vinyl, acrylic or urethane thermoset, said pressure sensitive adhesive layer is rubber, vinyl or an acrylic cement, and said heat seal coating is a vinyl, an acrylic, a polyolefin or an ionomer resin.
Claim 27
Dependent Claim
73 words
The blister package of claim 25 wherein said first adhesive layer is a urethane thermoset applied in an amount ranging from about 2.0 to about 1.4 pounds per ream, said pressure sensitive adhesive layer is thermoplastic rubber applied in an amount ranging from about 0.75 to about 1.25 pounds per ream and said heat seal coating is acrylic-modified vinyl applied in an amount ranging from about 2.4 to about 3.6 pounds per ream.
Claim 28
Dependent Claim
19 words
The blister package of claim 26 wherein said perforations form the shape of a "T" or a right angle.
Claim 29
Dependent Claim
35 words
The blister package of claim 27 wherein said perforations are located between each of two of said article-receiving pockets of a set of two article-receiving pockets, or to the side of any one article-receiving pocket.
Claim 30
Dependent Claim
12 words
The blister package of claim 28 wherein each depression is triangular shaped.
References Cited (Backward Citations)
US29705A
Cited
US3129817A
Cited
US3503493A
Cited
US3835995A
Cited
US3924746A
Cited
US3921805A
Cited
US3809221A
Cited
DE2360922A1
Cited
GB1450905A
Cited
US3899080A
Cited
US3941248A
Cited
US3933245A
Cited
US3912081A
Cited
US3924747A
Cited
US3912082A
Cited
US3905479A
Cited
US4011949A
Cited
US4169531A
Cited
DE2834848A1
Cited
US4537312A
Cited
US5088603A
Cited
US4988004A
Cited
US5046618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-05-09 | 1997-11-08 | 1998-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-09 | 2001-11-08 | 2002-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-09 | 2005-11-08 | 2006-05-10 | $7700.00 | Window Closed / Lapsed |