US3919973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Squeegee device for applying liquid or viscous material to a web
Assignee: Individual
•
Filing: 1974-04-01
•
Granted: 1975-11-18
•
Expires: 1994-04-01
Abstract
Abstract An apparatus for applying a liquid or viscous material to a traveling web by means of a roller squeegee includes a blade squeegee positioned upstream of said roller squeegee, as viewed in the direction of movement of the web.
Inventors
- 👤 Johannes Zimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:42
CPC Classifications
B; B41; B41F; B41F15/00; B41F15/14; B41F15/44; B41F15/46
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
131 words
A printing apparatus for applying a liquid or viscous printing material to a traveling web, said apparatus comprising: a moving printing base supporting and transporting a web; a stencil screen mounted in contact with said web, said screen having therein perforations; means for supplying said liquid or viscous printing material to a position on said stencil screen; blade squeegee means mounted to permanently contact said stencil screen for pressing said liquid or viscous printing material into but not through said perforations in said stencil screen; and roller squeegee means permanently contacting said stencil screen at a position downstream of said blade squeegee means, as viewed in the direction of travel of said web, for pressing said liquid or viscous printing material positioned in said perforations through said perforations onto said web.
Claim 2
Dependent Claim
131 words
A printing apparatus for applying a liquid or viscous printing material to a traveling web, said apparatus comprising: a moving printing base supporting and transporting a web; a stencil screen mounted in contact with said web, said screen having therein perforations; means for supplying said liquid or viscous printing material to a position on said stencil screen; blade squeegee means mounted to permanently contact said stencil screen for pressing said liquid or viscous printing material into but not through said perforations in said stencil screen; and roller squeegee means permanently contacting said stencil screen at a position downstream of said blade squeegee means, as viewed in the direction of travel of said web, for pressing said liquid or viscous printing material positioned in said perforations through said perforations onto said web.
Claim 3
Dependent Claim
42 words
An apparatus as claimed in claim 1, wherein said stencil screen comprises a cylindrical stencil screen mounted for rotation in contact with said web, said blade squeegee means and said roller squeegee means being positioned to contact the interior of said screen.
Claim 4
Dependent Claim
32 words
An apparatus as claimed in claim 2, wherein both said roller squeegee means and said blade squeegee means contact said screen in the area of contact between said screen and said web.
Claim 5
Dependent Claim
20 words
An apparatus as claimed in claim 1, wherein said blade squeegee means is positioned closely adjacent said roller squeegee means.
Claim 6
Dependent Claim
61 words
An apparatus as claimed in claim 1, wherein said blade squeegee means and said roller squeegee means are formed of magnetizable material, and further comprising magnet means positioned on the side of said web opposite said blade squeegee means and said roller squeegee means for causing said blade squeegee means and said roller squeegee means to be pressed toward said web.
References Cited (Backward Citations)
US1945065A
Cited
US3596595A
Cited
US3592132A
Cited
US3811378A
Cited
US3807302A
Cited
US3774533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |