Patent US4717426A successfully refreshed from Google Patents.
US4717426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for cleaning printing ink and printing mould for serigraphy screens
Assignee: Individual
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Filing: 1985-10-21
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Granted: 1988-01-05
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Expires: 2005-10-21
Abstract
Abstract Method by cleaning of printing ink and printing mould from the screen of a serigraphical frame (3), where the screen is cleaned with high pressure water to which has been added alkaline washing powder, to loosen the printing ink and the printing mould, thereafter flushing the screen with high pressure water to remove possible remaining printing ink and printing mould and finally to dry the cleaned screen for reuse.
Inventors
- 👤 Erik Brynildsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:24
CPC Classifications
B; B41; B41F; B41F35/00; B41F35/003; B41F35/005; B41F35/001
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
85 words
A method of cleaning printing ink and printing mould from a screen of a serigraphical printing frame which comprises applying a first high pressure aqueous flush to said screen to loosen said printing ink and printing mould wherein the aqueous flush comprises heated water to which an alkaline washing powder has been added, followed by applying to said screen a second high pressure flush comprising water to remove remaining printing ink and printing mould from said screen and thereafter drying the cleaned screen for reuse.
Claim 2
Independent Claim
85 words
A method of cleaning printing ink and printing mould from a screen of a serigraphical printing frame which comprises applying a first high pressure aqueous flush to said screen to loosen said printing ink and printing mould wherein the aqueous flush comprises heated water to which an alkaline washing powder has been added, followed by applying to said screen a second high pressure flush comprising water to remove remaining printing ink and printing mould from said screen and thereafter drying the cleaned screen for reuse.
Claim 3
Dependent Claim
32 words
The method according to claim 1 wherein the first aqueous flush is heated to a temperature of up to 40°-70° C. and contains a combination of effective desctructive tensides, phosphates, and alkalies.
Claim 4
Dependent Claim
17 words
The method according to claim 1 wherein the first aqueous flush further comprises a foam dampening agent.
Claim 5
Dependent Claim
17 words
The method according to claim 2 wherein the first aqueous flush further comprises a foam dampening agent.
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) | 1991-01-04 | 1991-07-06 | 1992-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-04 | 1995-07-06 | 1996-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-04 | 1999-07-06 | 2000-01-05 | $7700.00 | Window Closed / Lapsed |