Anchor and method for reduced Cr (VI) (hexavalent chromium) exposure in a vessel
US7591407B2 · kind B2 · utility
0Cited by
13References
5Claims
0Family size
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Inventor
Key dates
| Filing date | Jul 16, 2007 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Jul 16, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/8305
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An anchor for use interior of a carbon steel vessel, the anchor comprising a carbon steel anchor element and a carbon steel base, the anchor allowing welding of the base to the wall of the vessel without release of hexavalent chromium during installation. A method for installing a stainless steel anchor element to the interior wall of a carbon steel vessel, comprising welding the stainless steel anchor element to a carbon steel base in a ventilated environment exterior of the vessel interior and subsequently welding the carbon steel base to the vessel wall interior of the vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.