Roller drum plugging of honeycomb bodies
US11964440B2 · kind B2 · utility
0Cited by
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17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2019 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | May 23, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of plugging a honeycomb body is disclosed herein, the method comprising: applying a mask layer to the honeycomb body defining a plurality of channels, wherein the mask layer defines a plurality of holes aligned with the plurality of channels; rotating a roller drum; moving the honeycomb body over the roller drum to define a nip between the roller drum and the honeycomb body; and inserting a plugging cement in the nip between the roller drum and the mask layer such that the roller drum forces the plugging cement through the plurality of holes of the mask layer into the plurality of channels of the honeycomb body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.