Zeolitic material for improving loudspeaker performance
US11832050B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2018 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Jul 3, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/13
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Aspects are disclosed of an apparatus comprising an assemblage of beads. The assemblage includes a plurality of beads formed from a zeolite and a polymeric binder. At least one bead in the plurality of beads has a shape including a base shape having a continuous exterior formed of a first dome portion and a second dome portion, the first and second dome portions being joined together to form a spheroid with a polar axis, a polar dimension along the polar axis, and a transverse dimension normal to the polar axis, and an indentation formed in one of the first and second domed portions, the indentation having a depth and extending toward a center of the base shape along and in the direction of the polar axis and a width in the direction normal to the polar axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.