Ink scoop squeegee assembly
US4080893A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 7, 1976 |
| Grant date | Mar 28, 1978 |
| Priority date | — |
| Expiry date | Oct 7, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F15/46
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A squeegee assembly for stencilling apparatus employing cooperative front and rear panels astraddle the squeegee, the panels being shiftable between (1) an extended condition away from the squeezee and in which such cooperatively form an open bottom chamber for the stencilling fluid about the squeegee, and also the rear panel serves as a flow coater and the front panel serves as a fluid barrier, and (2) a retracted position at the squeegee to close the fluid chamber about the squeegee. BACKGROUND OF THE INVENTION This invention relates to stencilling apparatus, and more particularly to a stencilling assembly with control of the stencil fluid. In recent years, several developments have been made in squeegee assemblies of stencilling apparatus to obtain better control of the stencil fluid characteristics during continued stencilling. Many of such developments have been directed to features for controlling the viscosity of the fluid by limiting exposure of the fluid to minimize solvent evaporation, by controllably adding solvent to the fluid for viscosity stabilization, by operating the squeegee while submerged under a pool of fluid, by flow coating directly behind the squeegee during…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.