Float valve
US11820222B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2018 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Feb 14, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2015/03289
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A float valve (10) is provided for use with a liquid medium, the float valve having an upright configuration and an inverted configuration. The float valve includes: a housing (12), defining at least one inlet port (20) and at least one outlet port (24); a float assembly (60) movable within the housing; and an auxiliary float member (50) movable within said housing. The float assembly (60) comprises a primary float member (70; 70′), different from the auxiliary float member, and a spring element (80). The primary in float member is configured for closing the at least one outlet port when in abutment therewith, the spring element being configured for providing a biasing spring force to the primary float member in a direction towards said at least one outlet port. The auxiliary float member is configured for providing a net upthrust force with respect to the liquid medium under submerged conditions irrespective of whether the float valve is in said upright configuration or in said inverted configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.