Fluid treatment tank having a laser welded distributor plate
US12090573B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2019 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Nov 22, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2201/002
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A distributor plate for a fluid treatment tank such as a water softener pressure vessel separates the resin bed from a lower end of the resin tank. The outer peripheral surface of the distributor plate is laser-welded to an inner peripheral surface of the tank. The outer peripheral surface of the distributor plate may have a biasing mechanism that biases the outer peripheral surface of the distributor plate against the inner peripheral surface of the tank. The biasing mechanism may include a plurality of peripherally-spaced resilient fingers extending axially and radially away from a circular base of an outer ring of the distributor plate into engagement with the inner peripheral surface of the tank liner, each of the fingers having a base connected to the base of the ring and having a free end. Also disclosed is a method of making a fluid treatment tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.