Fluid control valve
US5203534A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1990 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Dec 18, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D3/041
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluid control valve which has a deformable valve member with a fluid passageway therethrough. The fluid passageway is closed by a pressure-exerting member. Initial actuation of the valve by pressure on an actuator assembly compresses a spring which moves the pressure-exerting member away from the deformable valve member, thus allowing the fluid passageway to open. The fluid control valve also having a base portion containing a tortuous path air channel. When the base portion is fitted against a neck plug of a reservoir, a vent opening in the neck plug opens into the air channel of the base, allowing air to enter the reservoir while preventing liquid from leaking out of the reservoir should the reservoir be tipped over.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.