US3874143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging method and apparatus
Assignee: Lehigh Press LLC
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Filing: 1973-03-16
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Granted: 1975-04-01
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Expires: 1993-03-16
Abstract
Abstract A blister packaging method and apparatus wherein a blister formed sheet is filled and closed by securement to an additional sheet, one of which sheets is scored, so that flexure of the secured sheets effects severance along the score to afford access to the contents of the blister.
Inventors
- 👤 Robert J Braber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:39
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/28; B65D75/30; B65D75/32; B65D75/325; B65D75/327; B29; B29C; B29C51/00; B29C51/26; B29C51/42; B29C51/421; B29C51/422; B65B; B65B47/00; B65B47/02; B65B61/00; B65B61/02; B65B61/18; B65B9/00; B65B9/02; B65B9/04; B65B9/045; B65D75/52; B65D75/58; B65D75/5827; B65D75/5833; B65D2585/00; B65D2585/56
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
166 words
A method of packaging comprising feeding a sheet along a path, forming a blister in the sheet at one location along the path, depositing contents in the blister, feeding an additional sheet into facing relation with said first-mentioned sheet at another location along the path to extend across the blister and enclose the contents, scoring one of said first-mentioned and additional sheets to form a cut extending partially through said one sheet, and securing said sheets together in said facing relation along a region of closed configuration extending about said blister and score, whereby flexure of the secured sheets along said score effects severance of the score for opening therethrough and access to the contents further characterized in forming said blister by heating said first-mentioned sheet against a platen, withdrawing a section of the platen from said first-mentioned sheet tO provide an unsupported portion of sheet, and moving a forming die against the unsupported sheet portion and toward the withdrawn platen section to form said blister.
Claim 2
Independent Claim
166 words
A method of packaging comprising feeding a sheet along a path, forming a blister in the sheet at one location along the path, depositing contents in the blister, feeding an additional sheet into facing relation with said first-mentioned sheet at another location along the path to extend across the blister and enclose the contents, scoring one of said first-mentioned and additional sheets to form a cut extending partially through said one sheet, and securing said sheets together in said facing relation along a region of closed configuration extending about said blister and score, whereby flexure of the secured sheets along said score effects severance of the score for opening therethrough and access to the contents further characterized in forming said blister by heating said first-mentioned sheet against a platen, withdrawing a section of the platen from said first-mentioned sheet tO provide an unsupported portion of sheet, and moving a forming die against the unsupported sheet portion and toward the withdrawn platen section to form said blister.
Claim 3
Dependent Claim
30 words
A method of packaging according to claim 1, further characterized in applying fluid pressure to hold said first mentioned sheet against said platen, for effective heating of said first-mentioned sheet.
Claim 4
Dependent Claim
29 words
A method of packaging according to claim 1, further characterized in applying fluid pressure to hold said first-mentioned sheet against said forming die to accurately form said first-mentioned sheet.
Claim 5
Dependent Claim
66 words
A method of packaging according to claim 1, said feeding of said additional sheet being further characterized in stepwise drawing of an additional web of sheeting from an additional roll for intermittent movement to said other location, forming frangible transverse regions in said additional web, and breaking said regions at said other location to define of said additional web said additional sheet in said facing relation.
Claim 6
Dependent Claim
117 words
Packaging apparatus comprising a forming station for blister-forming a sheet, conveying means for conveying a blister-formed sheet from said station, a filling station along said conveying means for filling the blisters, a scoring station spaced laterally from said conveyor for scoring a sheet to form cuts partially through the scored sheet, feeding means for feeding the scored sheet onto said conveyor means into facing relation with the blister formed sheet, and a sealing station along said conveyor means for sealing said blister-formed and scored sheets together in said facing relation, said forming station comprising a heating platen having a withdrawable section, and a mail die for entry into the space vacated by said withdrawable section when withdrawn.
Claim 7
Dependent Claim
117 words
Packaging apparatus comprising a forming station for blister-forming a sheet, conveying means for conveying a blister-formed sheet from said station, a filling station along said conveying means for filling the blisters, a scoring station spaced laterally from said conveyor for scoring a sheet to form cuts partially through the scored sheet, feeding means for feeding the scored sheet onto said conveyor means into facing relation with the blister formed sheet, and a sealing station along said conveyor means for sealing said blister-formed and scored sheets together in said facing relation, said forming station comprising a heating platen having a withdrawable section, and a mail die for entry into the space vacated by said withdrawable section when withdrawn.
Claim 8
Dependent Claim
40 words
Packaging apparatus according to claim 5, in combination with fluid pressure means for initially applying said first-mentioned sheet against said platen to heat the latter sheet and subsequently applying the latter sheet against said male die to form the sheet.
Claim 9
Dependent Claim
27 words
Packaging apparatus according to claim 1, in combination with bending means at said sealing station for bending adjacent scored sheets to break apart the same upon sealing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |