Pneumatic system for feeding a plurality of cards with open fiber flocks
US4169632A · kind A · utility
0Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1977 |
| Grant date | Oct 2, 1979 |
| Priority date | — |
| Expiry date | Aug 19, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01G23/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Each card is interconnected to a multiplicity of pneumatic feed ducts via a branch duct which can be selectively placed in communication with any one of the feed ducts. Each branch duct includes a plurality of openings near one end, each of which is opened or closed relative to a feed duct by means of a sliding baffle. In addition, the upstream end of each branch duct is open to the atmosphere so that the same constant air pressure prevails in all of the feed chutes to the various cards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.