Adjustable grid for fiber bale opener
US4999882A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1989 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | Jun 13, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01G7/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The extraction arm of a fiber bale opening machine is provided with an adjustable grid made up of spaced apart grid bars between which driveable fiber removal members project to detach tufts of fiber from the bales. The depth of projection of the fiber removal members through the grid is adjustable by adjustment of the positions of the grid bars. The grid bars are mounted at their two ends on respective pivot spindles and at least one lever mechanism rotates a pivot shaft to move the pivot spindles up or down to lift or lower the grid bars. Also, the grid bars are restrained against undesired movements in the direction of their lengths by suitable stops or slots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.