Fluid dispenser having a removable sealing diaphragm
US5111970A · kind A · utility
33Cited by
11References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1991 |
| Grant date | May 12, 1992 |
| Priority date | — |
| Expiry date | Mar 12, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D3/047
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A fluid dispenser operable between opened and closed positions is adapted for attachment to a flexible bag that contains a liquid, particulate matter or other fluid material, where an opening is provided through a wall of the bag into an interior of the dispenser. The dispenser is initially closed to fluid flow, for the purpose of storage and shipping, by a diaphragm that is cut the first time the dispenser is operated to its opened position. A specially designed diaphragm cutting track and cooperative knife shape cause a cut diaphragm flap to be pushed out of the fluid flow path through the dispenser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.