INNER PIPE FOR LIQUID HEATING APPARATUS, AND LIQUID HEATING APPARATUS AND MANUFACTURING METHOD THEREFOR
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United States of America Patent
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N/A
Issued Date -
Oct 6, 2022
app pub date -
Jun 24, 2022
filing date -
Dec 26, 2019
priority date (Note) -
Published
status (Latency Note)
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Abstract
The present invention discloses an inner pipe for a liquid heating apparatus, including a hollow pipe body made of a metal or an alloy, where a pipe wall thickness of the pipe body is 0.3-1.0 mm; through a machining method of rolling or pressing, a spiral diversion structure is machined on an inner peripheral wall of the pipe body along an axial direction of the pipe body, so that the spiral division structure is formed to extend along the axial direction of the pipe body. The present invention further discloses a liquid heating apparatus and a manufacturing method therefor. The liquid heating apparatus includes the inner pipe and the outer pipe; a heating assembly is disposed on the outer peripheral wall of the outer pipe.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| CN | A | CN111102735 | Dec 26, 2019 |
| EP | B1 | EP4080132 | Dec 25, 2020 |
| WO | A1 | WO2021129785 | Dec 25, 2020 |
International Classification(s)
- 2022 Application Filing Year
- F24H Class
- 306 Applications Filed
- 100 Patents Issued To-Date
- 32.68 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F24H Class
- 0 % this patent is cited more than
- 3 Age