Screen module for preparing cosmetics nested screens of different mesh sizes
US5607062A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1995 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Aug 18, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2023/165
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A screen module for a size reduction machine has a rigid screen having a tapered apertured wall formed in a frusto-conical shape. The rigid screen has an open wide end and a flat end. The wide end is mountable within a channel of the size reduction machine at a predetermined distance from a complementarily shaped impeller. The module has a fine screen nested within the rigid screen and against the tapered apertured wall. The fine screen has a wide end and a narrow end corresponding to the apertured wall. An adaptor disc is releasably secured within the rigid screen at the flat end. The adaptor has a tapered outer perimeter for seating against the tapered apertured wall when the adaptor disc is secured within the rigid screen, clamping the narrow end of the fine screen therebetween. A clamp ring is releasably secured at the open wide end of the rigid screen. The clamp ring has a tapered inner perimeter for seating against the tapered apertured wall when secured against the open wide end, clamping the wide end of the fine screen therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.