Bag and bag making apparatus
US4540089A · kind A · utility
70Cited by
15References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1982 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Nov 18, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2241/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A mixing bag (4) comprising a mixing chamber in the form of a compartment (45), a pocket (42) in the bag having a mouth opening (44) so that it can be filled with liquid (72) to a predetermined volume. The pocket is easily ruptured when the mouth is closed to discharge the volume of liquid into the compartment for mixing with a material (70) in the compartment. During mixing the walls (46, 47) of the pocket about to serve as a nonreturn valve in the bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.