US3804237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Package construction
Assignee: Flex-O-Glass Inc
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Filing: 1972-06-05
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Granted: 1974-04-16
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Expires: 1992-06-05
Abstract
Abstract A carton construction for use in packaging sheet materials. The carton construction may be formed of a single sheet of folded material, such as corrugated cardboard. The carton construction is arranged to permit facilitated removal of the sheets as desired while providing a facial frictional force tending to prevent lateral translation of the individual sheets in the carton construction in shipment.
Inventors
- 👤 D Christensen
- 👤 J Kalin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:13
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/08; B65D65/00; B65D65/02; B65D65/10; B65D65/12; Y; Y10; Y10S; Y10S229/00; Y10S229/939
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
126 words
A package construction comprising: a carton including a back wall defining side, bottom and top edges, a front wall defining side, bottom and top edges, and substantially rigid side walls extending between said side edges of said back and front walls, spacing said Back and front walls apart a preselected fixed distance to define a space therebetween; and a preselected stack of sheets having a stack height slightly greater than said spacing and a width less than the spacing between said side walls received in said space, at least one of said back and front walls being resiliently deformed outwardly by said sheet stack and applying a resulting pressure against the sheet stack tending to hold the sheets therein against face-to-face displacement between said side walls.
Claim 2
Dependent Claim
126 words
A package construction comprising: a carton including a back wall defining side, bottom and top edges, a front wall defining side, bottom and top edges, and substantially rigid side walls extending between said side edges of said back and front walls, spacing said Back and front walls apart a preselected fixed distance to define a space therebetween; and a preselected stack of sheets having a stack height slightly greater than said spacing and a width less than the spacing between said side walls received in said space, at least one of said back and front walls being resiliently deformed outwardly by said sheet stack and applying a resulting pressure against the sheet stack tending to hold the sheets therein against face-to-face displacement between said side walls.
Claim 3
Dependent Claim
32 words
The package construction of claim 1 wherein each of said side walls comprises an inturned portion of each of said side edges of at least one of said back and front walls.
Claim 4
Dependent Claim
30 words
The package construction of claim 1 wherein each of said side walls comprises an inturned portion of each of said side edges of each of said back and front walls.
Claim 5
Dependent Claim
35 words
The package construction of claim 1 wherein each of said side walls comprises an inturned and outwardly folded portion of each of said side edges of at least one of said back and front walls.
Claim 6
Dependent Claim
33 words
The package construction of claim 1 wherein each of said side walls comprises an inturned and outwardly folded portion of each of said side edges of each of said back and front walls.
Claim 7
Dependent Claim
17 words
The package construction of claim 1 wherein said carton is formed of a single sheet of stock.
Claim 8
Dependent Claim
180 words
A package construction comprising: a carton including a back wall defining side, bottom and top edges, a front wall defining side, bottom and top edges, and substantially rigid side walls extending between said side edges of said back and front walls, spacing said back and front walls apart a preselected fixed distance to define a space therebetween; and a preselected stack of sheets received in said space, said front wall having a height between said bottom and top edges thereof less than the face height of the sheets of the stack, said back wall having a height between said bottom and top edges thereof greater than the face height of the sheets whereby an upper portion of the sheet stack is disposed beyond said top edge of the front wall and forwardly of the upper portion of the back wall, said side walls including a portion extending forwardly from said back wall laterally of said upper portion of the sheet stack a distance less than the thickness of the sheet stack for facilitated withdrawal of the sheets from said space.
Claim 9
Dependent Claim
180 words
A package construction comprising: a carton including a back wall defining side, bottom and top edges, a front wall defining side, bottom and top edges, and substantially rigid side walls extending between said side edges of said back and front walls, spacing said back and front walls apart a preselected fixed distance to define a space therebetween; and a preselected stack of sheets received in said space, said front wall having a height between said bottom and top edges thereof less than the face height of the sheets of the stack, said back wall having a height between said bottom and top edges thereof greater than the face height of the sheets whereby an upper portion of the sheet stack is disposed beyond said top edge of the front wall and forwardly of the upper portion of the back wall, said side walls including a portion extending forwardly from said back wall laterally of said upper portion of the sheet stack a distance less than the thickness of the sheet stack for facilitated withdrawal of the sheets from said space.
Claim 10
Dependent Claim
31 words
The package construction of claim 7 wherein said side walls portion is carried on said back wall and extending upwardly beyond the level of said top edge of the front wall.
Claim 11
Dependent Claim
33 words
The package construction of claim 7 wherein said side walls portion is carried on said back wall and extending upwardly at least to the top edge of the upper portion of the stack.
Claim 12
Dependent Claim
51 words
The package construction of claim 7 further including means for closing said space at said bottom and top edges of said back and front walls including a front cover portion overlying said upper portion of sheet stack and having a lower edge juxtaposed to said top edge of the front wall.
Claim 13
Dependent Claim
83 words
The package construction of claim 7 further including means for closing said space at said bottom and top edges of said back and front walls including a front cover portion overlying said upper portion of the sheet stack and having a lower edge juxtaposed to said top edge of the front wall, and a strip of adhesive backed tape secured to said front cover portion and said front wall for removably sealing the closing means at said top edge of the front wall.
Claim 14
Dependent Claim
90 words
The package construction of claim 7 wherein said side walls portion is carried on said back wall and extending upwardly beyond the level of said top edge of the front wall, and further including means for closing said space at said bottom and top edges of said back and front walls including a front cover portion overlying said upper portion of the sheet stack and having a lower edge juxtaposed to said top edge of the front wall, said side walls further including a portion on said front cover portion.
Claim 15
Dependent Claim
93 words
The packAge construction of claim 7 wherein said side walls portion is formed integrally with said back wall to extend upwardly beyond the level of said top edge of the front wall, and further including means for closing said space at said bottom and top edges of said back and front walls including a front cover portion overlying said upper portion of the sheet stack and having a lower edge juxtaposed to said top edge of the front wall, said side walls further including a portion formed integrally with said front cover portion.
Claim 16
Dependent Claim
79 words
The package construction of claim 7 further including means for closing said space at said bottom and top edges of said back and front walls including a front cover portion overlying said upper portion of the sheet stack and having a lower edge juxtaposed to said top edge of the front wall, and a top wall portion extending forwardly from said top edge of the back wall a height substantially equal to the back-to-front height of said side walls.
Claim 17
Dependent Claim
92 words
The package construction of claim 7 further including means for closing said space at said bottom and top edges of said back and front walls including a front cover portion overlying said upper portion of the sheet stack and having a lower edge juxtaposed to said top edge of the front wall, and a strip of adhesive backed tape secured to said front cover portion and said front wall for removably sealing the closing means at said top edge of the front wall, said carton and strip having a similar yellow color.
Claim 18
Dependent Claim
24 words
The package construction of claim 7 wherein said side walls are extensible and are fixedly secured in a contracted disposition by mechanical fastening means.
Claim 19
Dependent Claim
28 words
The package construction of claim 1 further including means for closing said space at said bottom and top edges of said back and front walls of the carton.
References Cited (Backward Citations)
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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) | 1977-04-15 | 1977-10-15 | 1978-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-15 | 1981-10-15 | 1982-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-15 | 1985-10-15 | 1986-04-16 | $7700.00 | Window Closed / Lapsed |