Flexible adjustable smoothing blade
US5609686A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1995 |
| Grant date | Mar 11, 1997 |
| Priority date | — |
| Expiry date | Aug 30, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/842
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus continuously smoothes a wet coating of magnetizable particles and binder on a moving flexible web. A first longitudinal end of a flexible film is held in contact with the wet coating on the substrate and is free to drag against the wet coating. The first longitudinal end is deflected toward the substrate along a line extending transversely between the first and second transverse ends. The amount of deflection is adjusted and varied during coating to adjust the radius of curvature of the deflection of the first longitudinal end. A smoothing bar or a cylindrical rod, with or without a sharp edge, can hold the flexible film in position. The deflection and adjustment can be performed by a screw. Alternatively, a cylindrical rod is used by itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.