Tooling and method for flexible through connection between double liners of water heater
US12276440B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2023 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Dec 24, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H9/0005
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A tooling and method for flexible through connection of a double-liner water heater. The tooling includes a transition shaft, a tooling connecting plate and a fastening screw. The method includes: allowing a shaft head of the transition shaft to be in fit with an inner surface of an outer flange of a lower liner for welding; allowing an end hole to be in fit with an outer surface of an inner flange of an upper liner for welding; after welding seams are cooled, removing the tooling, and enameling the upper and liners; forming through-flexible connection between the inner and outer flanges; and firmly fitting the upper and lower liners together with two steel strips to ensure that a gap between the upper and lower liners is not greater than 7 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.