Centrifugal air separator coil manufacturing methods
US11235279B2 · kind B2 · utility
0Cited by
48References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 26, 2019 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Nov 12, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/4575
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods for forming thin wall tubing into a tightly-coiled helical duct comprise selecting a thin wall tube with an outside tube diameter and a wall thickness that is less than 15% of the outside tube diameter; and bending the thin wall tube to form the tightly-coiled helical duct so that an outside duct diameter of the tightly-coiled helical duct is less than four times the outside tube diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.