Dispenser of drinks capable of releasing gas in solution
US4756450A · kind A · utility
15Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1986 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Mar 4, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D3/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The dispenser comprises a flexible sealing-tight vessel (1) disposed in a rigid chamber (3) containing a ratchet mechanism comprising ratchet teeth (6) secured to a tubular element (4) and pawls (11) on resilient arms (10) mounted on a disc (9) disposed above the flexible bag (1). Resilient elements (12) fastened to the disc (9) lower it in proportion as a drink is withdrawn from the flexible bag (1). The ratchet mechanism retains the disc (9) when the pressure in the bag (1) becomes higher than atmospheric pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.