Patent JPS5484483A successfully refreshed from Google Patents.
Patent US3830197A successfully refreshed from Google Patents.
US3830197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for simultaneously applying alternate fluid coatings to a traveling sheet material
Assignee: Fort James Corp
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Filing: 1972-10-20
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Granted: 1974-08-20
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Expires: 1992-10-20
Abstract
Abstract An apparatus and method for applying alternate fluid coatings to a traveling sheet material simultaneously with the application of production coating along the remainder of the sheet surface. The alternate fluid coating is achieved by first applying a production coating to a furnish roll, doctoring the production coating from a strip of the furnish roll, applying an alternate fluid coating to this strip, and transferring the resulting coatings from the furnish roll to a traveling sheet. The apparatus comprises a furnish roll including coating means and an engageable doctor blade-coating pan in sequential contact with a portion or strip of the coated furnish roll surface.
Inventors
- 👤 D Romaine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:17
CPC Classifications
B; B05; B05C; B05C1/00; B05C1/04; B05C1/08; B05C1/0826; B05C1/0834; B05C9/00; B05C9/06
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
144 words
An apparatus for applying alternate strip fluid coatings to a traveling sheet material, comprising: A movable furnish roll, furnish roll fluid-coating means, at least one doctor blade shorter than the furnish roll and a coating tray in aligned contact with the fluid-coated furnish roll circumferential surface, said doctor blade adapted to remove coating applied by said coating means from a portion of said furnish roll and said tray adapted to apply an alternate fluid-coating to said portion, an applicator roll in contact with the fluid-coated furnish roll circumferential surface and spaced downstream from the doctor blade and coating tray in the direction of movement of the furnish roll surface, a sheet supply and means for traveling said sheet, said applicator roll circumferential surface in contact with the traveling sheet material and adapted to transfer the fluid from the furnish roll to the sheet material.
Claim 2
Independent Claim
144 words
An apparatus for applying alternate strip fluid coatings to a traveling sheet material, comprising: A movable furnish roll, furnish roll fluid-coating means, at least one doctor blade shorter than the furnish roll and a coating tray in aligned contact with the fluid-coated furnish roll circumferential surface, said doctor blade adapted to remove coating applied by said coating means from a portion of said furnish roll and said tray adapted to apply an alternate fluid-coating to said portion, an applicator roll in contact with the fluid-coated furnish roll circumferential surface and spaced downstream from the doctor blade and coating tray in the direction of movement of the furnish roll surface, a sheet supply and means for traveling said sheet, said applicator roll circumferential surface in contact with the traveling sheet material and adapted to transfer the fluid from the furnish roll to the sheet material.
Claim 3
Dependent Claim
39 words
The apparatus according to claim 1 wherein the coating tray has an open end with said open end having a circumferential dimension of said furnish roll, said open end having furnish roll contact surfaces overlaid by nonabrasive seal strips.
Claim 4
Dependent Claim
19 words
The apparatus according to claim 2 wherein said coating tray has a coating fluid feed conduit for continuous operation.
Claim 5
Dependent Claim
22 words
The apparatus according to claim 2 wherein said coating tray has an engageable doctor blade attached to the bottom of said tray.
Claim 6
Dependent Claim
23 words
The apparatus according to claim 4 wherein said doctor blade is of about the same width as that of the tray open end.
Claim 7
Dependent Claim
43 words
The apparatus according to claim 4 wherein the tray is positioned with the seal-stripped open inside walls in contact with the furnish roll and the doctor blade is in an engageable position relative to the rotating furnish roll prior to the tray contact.
Claim 8
Dependent Claim
119 words
Apparatus for applying alternate strip fluid coatings to sheet material, comprising: movable furnish means including a furnish surface having a predetermined width engageable with said sheet material; means for coating said furnish surface with a first coating over substantially the full width thereof; means including at least one doctor blade shorter than said furnish surface width for removing said coating from a portion of said furnish surface width; and means in alignment with said doctor blade for applying at least one alternate coating to said furnish surface portion, whereby subsequent engagement between said sheet material aNd said furnish means results in the transfer of at least one strip of alternate coating and adjacent first coating to said sheet material.
Claim 9
Dependent Claim
119 words
Apparatus for applying alternate strip fluid coatings to sheet material, comprising: movable furnish means including a furnish surface having a predetermined width engageable with said sheet material; means for coating said furnish surface with a first coating over substantially the full width thereof; means including at least one doctor blade shorter than said furnish surface width for removing said coating from a portion of said furnish surface width; and means in alignment with said doctor blade for applying at least one alternate coating to said furnish surface portion, whereby subsequent engagement between said sheet material aNd said furnish means results in the transfer of at least one strip of alternate coating and adjacent first coating to said sheet material.
Claim 10
Dependent Claim
44 words
The apparatus of claim 7 wherein said furnish means comprises a rotatable furnish roll and said alternate coating applying means comprising a coating tray having an open end conforming to the circumferential dimension of said furnish roll and in communication with said funish roll.
Claim 11
Dependent Claim
23 words
The apparatus according to claim 8 wherein the coating tray open end is defined by roll contact surfaces overlaid with non-abrasive seal strips.
Claim 12
Dependent Claim
18 words
The apparatus according to claim 9 wherein said coating tray has a coating fluid feed conduit attached thereto.
Claim 13
Dependent Claim
18 words
The apparatus according to claim 9 wherein said doctor blade is attached to the bottom of said tray.
Claim 14
Dependent Claim
24 words
The apparatus according to claim 11 wherein said doctor blade is of substantially the same width as the width of the tray open end.
Claim 15
Dependent Claim
57 words
The apparatus according to claim 8 additionally comprising a backing roll urging the sheet material against the furnish roll and a metering roll engageable with said sheet material and having a full-width doctor blade in operative engagement therewith to remove coating transferred to the metering roll surface due to the metering roll contact with the sheet material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |