Duck call device
US11963524B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2021 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Aug 26, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K9/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A duck call device includes a tone board having a tone surface and a tone board port defined, relative to airflow, behind the tone surface. The tone board port is divided into multiple channels to form a multi-channel port. A reed is located on the tone surface and is configured to vibrate there against. The multi-channel port may be created by a longitudinal central rib dividing a portion of the tone board port, wherein the longitudinal central rib contacts the reed while air is passing through the duck call device. The tone surface may surround a portion of the tone board port with recessed edges, and the central rib may have recessed edges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.