US5205406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-static coated paperboard or similar rigid material
Assignee: Bradford Co Inc
•
Filing: 1991-06-11
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Granted: 1993-04-27
•
Expires: 2011-06-11
Abstract
Abstract A multiple-ply anti-static paperboard having a layer of relatively rigid material to which at least one ply of permanently anti-static/static-dissipative material is applied. Containers, as well as dividers and pads for containers, are made of such multiple-ply board materials. The permanently anti-static/static-dissipative layer prevents a static charge from being created when articles are inserted into or removed from the containers and prevents paperboard or other dust from contacting and adversely affecting the packaged article.
Inventors
- 👤 Judson A. Bradford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:52
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/24; B32; B32B; B32B27/00; B32B27/06; B32B27/10; B65D5/00; B65D5/42; B65D5/44; B65D5/48; B65D5/48024; B65D5/48026; B65D5/48038; H; H05; H05K; H05K9/00; H05K9/0067; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1303; Y10T428/1352
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
161 words
A container for packaging an article which can be damaged by static electricity, comprising: a box having sidewalls and top and bottom walls; a plurality of relatively rigid dividers located in said box, each said divider comprising a layer of relatively rigid material sandwiched between two layers of amine-free, permanently anti-static/static-dissipative material, said two layers of anti-static material having a permanent surface resistivity of greater than 10 5 but less than 10 12 ohm per square; each of said two layers being adhered while in a solid state to said layer of relatively rigid material and prior to being adhered to said layer of relatively rigid material being characterized by the same solid amine-free, permanently anti-static/static-dissipative characteristics as characterize said two layers after being adhered to said relatively rigid layer; and wherein said dividers partially define a predetermined number of cells within said box, each said cell providing protection from electrostatic charge for static electricity sensitive articles to be packaged therein.
Claim 2
Dependent Claim
161 words
A container for packaging an article which can be damaged by static electricity, comprising: a box having sidewalls and top and bottom walls; a plurality of relatively rigid dividers located in said box, each said divider comprising a layer of relatively rigid material sandwiched between two layers of amine-free, permanently anti-static/static-dissipative material, said two layers of anti-static material having a permanent surface resistivity of greater than 10 5 but less than 10 12 ohm per square; each of said two layers being adhered while in a solid state to said layer of relatively rigid material and prior to being adhered to said layer of relatively rigid material being characterized by the same solid amine-free, permanently anti-static/static-dissipative characteristics as characterize said two layers after being adhered to said relatively rigid layer; and wherein said dividers partially define a predetermined number of cells within said box, each said cell providing protection from electrostatic charge for static electricity sensitive articles to be packaged therein.
Claim 3
Dependent Claim
131 words
A container as in claim 1 and further comprising: a relatively rigid top pad located between said top wall of said box and said dividers; a relatively rigid bottom pad located between said bottom wall of said box and said dividers; wherein each said pad comprises a layer of relatively rigid material sandwiched between two layers of permanently anti-static/static-dissipative material; each of said two layers being adhered while in a solid state to said layer of relatively rigid material and prior to being adhered to said layer of relatively rigid material being characterized by the same solid amine-free, permanently anti-static/static-dissipative characteristics as characterize said two layers after being adhered to said relatively rigid layer; and said pads and said dividers completely surrounding said cells with a layer of permanently anti-static/static-dissipative material.
Claim 4
Dependent Claim
18 words
A container as in claim 1 or claim 2 wherein said anti-static/static-dissipative material comprises: an anti-static plastic material.
Claim 5
Dependent Claim
17 words
A container as in claim 1 or claim 2 wherein said permanently anti-static/static-dissipative material comprises low-density polyethylene.
Claim 6
Dependent Claim
42 words
A container as in claim 1 or claim 2 wherein said permanently anti-static/static-dissipative material comprises a plastic which has been subjected to electron-beam radiation to impart said surface resistivity of more than 10 5 but less than 10 12 ohms per square.
Claim 7
Dependent Claim
157 words
A container for user in packaging an article which can be damaged by static electricity, comprising: a box having sidewalls and top and bottom walls; a plurality of relatively rigid dividers located in said box, each said divider comprising a layer of paperboard sandwiched between two layers of amine-free, permanently anti-static/static-dissipative material, said two layers of anti-static/static-dissipative material having a surface resistivity of more than 10 5 but less than 10 12 ohms per square; each of said two layers being adhered while in a solid state to said layer of paperboard and prior to being adhered to said layer of paperboard being characterized by the same solid amine-free, permanently anti-static/static-dissipative characteristics as characterize said two layers after being adhered to said layer of paperboard; and wherein said dividers partially define a predetermined number of cells within said box, each said cell providing protection from electrostatic charge for a static electricity sensitive article to be packaged therein.
Claim 8
Dependent Claim
157 words
A container for user in packaging an article which can be damaged by static electricity, comprising: a box having sidewalls and top and bottom walls; a plurality of relatively rigid dividers located in said box, each said divider comprising a layer of paperboard sandwiched between two layers of amine-free, permanently anti-static/static-dissipative material, said two layers of anti-static/static-dissipative material having a surface resistivity of more than 10 5 but less than 10 12 ohms per square; each of said two layers being adhered while in a solid state to said layer of paperboard and prior to being adhered to said layer of paperboard being characterized by the same solid amine-free, permanently anti-static/static-dissipative characteristics as characterize said two layers after being adhered to said layer of paperboard; and wherein said dividers partially define a predetermined number of cells within said box, each said cell providing protection from electrostatic charge for a static electricity sensitive article to be packaged therein.
Claim 9
Dependent Claim
84 words
A multiple-ply packaging material comprising: a first layer of relatively rigid material having first and second surfaces; a second layer of permanently anti-static/static-dissipative material applied to one of said first and second surfaces, said second layer being amine-free and having been applied while in the solid state and rendered permanently anti-static/static-dissipative prior to application to said one of said first and second surfaces; and said second layer having a surface resistivity of more than 10 5 but less than 10 12 ohms per square.
Claim 10
Dependent Claim
84 words
A multiple-ply packaging material comprising: a first layer of relatively rigid material having first and second surfaces; a second layer of permanently anti-static/static-dissipative material applied to one of said first and second surfaces, said second layer being amine-free and having been applied while in the solid state and rendered permanently anti-static/static-dissipative prior to application to said one of said first and second surfaces; and said second layer having a surface resistivity of more than 10 5 but less than 10 12 ohms per square.
Claim 11
Dependent Claim
16 words
A multiple-ply material as in claim 7 wherein said first layer comprises: a layer of paperboard.
Claim 12
Dependent Claim
27 words
A multiple-ply material as in claim 7 or claim 8 wherein said second layer comprises: a precast layer of anti-static/static-dissipative plastic material laminated onto said first layer.
Claim 13
Dependent Claim
20 words
A multiple-ply material as in claim 7 or claim 8 wherein said permanently anti-static/static-dissipative material comprises: a plastic foam material.
Claim 14
Dependent Claim
26 words
A multiple-ply material as in claim 7 or claim 8 wherein said second layer comprises: a plastic material which has been subjected to high-energy, electron-beam radiation.
Claim 15
Dependent Claim
113 words
A multiple-ply paperboard comprising: a first layer of permanently anti-static/static-dissipative material; a second layer of permanently anti-static material; a third layer of paperboard having first and second sides, said first and second layers being permanently applied to said first and second sides, respectively, of said paperboard so as to sandwich said paperboard between said first and second layers, said first and second layers being amine free and having been precast into solid form and rendered permanently anti-static/static-dissipative prior to application to said first and second sides of said paperboard; and wherein said first and second layers have a surface resistivity of more than 10 5 but less than 10 12 ohms per square.
Claim 16
Dependent Claim
113 words
A multiple-ply paperboard comprising: a first layer of permanently anti-static/static-dissipative material; a second layer of permanently anti-static material; a third layer of paperboard having first and second sides, said first and second layers being permanently applied to said first and second sides, respectively, of said paperboard so as to sandwich said paperboard between said first and second layers, said first and second layers being amine free and having been precast into solid form and rendered permanently anti-static/static-dissipative prior to application to said first and second sides of said paperboard; and wherein said first and second layers have a surface resistivity of more than 10 5 but less than 10 12 ohms per square.
Claim 17
Dependent Claim
121 words
A multiple-ply packaging material comprising: a first layer of permanently anti-static/static-dissipative material; a second layer of permanently anti-static/static-dissipative material; a third layer of relatively rigid material having first and second sides, said first and second layers being permanently applied to said first and second sides, respectively, of said relatively rigid material so as to sandwich said relatively rigid material between said first and second layers, said first and second layers being amine free and having been precast into solid form and rendered permanently anti-static/static-dissipative prior to application to said first and second sides of said rigid material; and wherein said first and second layers have a surface resistivity of more than 10 5 but less than 10 12 ohms per square.
Claim 18
Dependent Claim
121 words
A multiple-ply packaging material comprising: a first layer of permanently anti-static/static-dissipative material; a second layer of permanently anti-static/static-dissipative material; a third layer of relatively rigid material having first and second sides, said first and second layers being permanently applied to said first and second sides, respectively, of said relatively rigid material so as to sandwich said relatively rigid material between said first and second layers, said first and second layers being amine free and having been precast into solid form and rendered permanently anti-static/static-dissipative prior to application to said first and second sides of said rigid material; and wherein said first and second layers have a surface resistivity of more than 10 5 but less than 10 12 ohms per square.
Claim 19
Dependent Claim
16 words
A multiple-ply material as in claim 13 wherein said third layer comprises: a layer of paperboard.
Claim 20
Dependent Claim
20 words
A multiple-ply material as in claim 13 or claim 14 wherein said permanently anti-static/static-dissipative material comprises: an anti-static/static-dissipative plastic material.
Claim 21
Dependent Claim
20 words
A multiply-ply material as in claim 13 or claim 14 wherein said permanently anti-static/static-dissipative material comprises: a plastic foam material.
Claim 22
Dependent Claim
121 words
A multiple-ply packaging material comprising: a first layer of relatively rigid material having first and second surfaces; a second layer of anti-static/static-dissipative material applied to one of said first and second surfaces, said second layer being amine-free and having a surface resistivity of more than 10 5 but less than 10 12 ohms per square; and said second layer having been applied to said one of said first and second surfaces while in a solid state, said second layer while in said solid state and before application to said one of said first and second surfaces being characterized by the same amine-free, anti-static/static-dissipative characteristics as characterize said second layer after being applied to said one of said first and second surfaces.
Claim 23
Dependent Claim
121 words
A multiple-ply packaging material comprising: a first layer of relatively rigid material having first and second surfaces; a second layer of anti-static/static-dissipative material applied to one of said first and second surfaces, said second layer being amine-free and having a surface resistivity of more than 10 5 but less than 10 12 ohms per square; and said second layer having been applied to said one of said first and second surfaces while in a solid state, said second layer while in said solid state and before application to said one of said first and second surfaces being characterized by the same amine-free, anti-static/static-dissipative characteristics as characterize said second layer after being applied to said one of said first and second surfaces.
Claim 24
Dependent Claim
13 words
The multiple-ply packaging material of claim 17 wherein said first layer is paperboard.
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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) | 1996-04-26 | 1996-10-26 | 1997-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-26 | 2000-10-26 | 2001-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-26 | 2004-10-26 | 2005-04-27 | $7700.00 | Window Closed / Lapsed |