Water purifier for use with bottle container
US6641719B1 · kind B1 · utility
Inventor
Key dates
| Filing date | May 22, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | May 22, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2307/02
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A water purifier (1) for use with bottle containers, capable of being installed easily on a bottle container such as a PET bottle and capable of efficiently purifying water by allowing the flow rate of the purified water to be stable, includes a filter case (2) and a filter medium (3) charged therein. Wherein a joint (5) fittable to a filler port (Pm) of the PET bottle (P) is provided at the upstream side end part of the filter case (2), a vent tube (6) extends from the outside of the PET bottle (P) to the inside of the PET bottle (P) through the wall surface of the joint (5) and the filler port (Pm), air flows through the vent tube (6) into the PET bottle when water is passed from the filler port (Pm) through the water purifier (1). At the time of water purification, air flow control means capable of controlling the flow rate of air flowing into the bottle container may be provided in the vent tube (6). An air chamber (14) for expanding the air passage of the vent tube (6) may be provided at midpoint on the vent tube (6), and a funnel part (28b) for collecting the purified water into a water supply hole (M) and allowing the water to flow downward may be provided on the downstream …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.