Propeller blade spacer for aquaculture net cleaning
US12250930B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 12, 2023 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | May 12, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B7/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A propeller assembly to facilitate the cleaning of aquaculture nets. The propeller assembly has a centrally disposed hub with a plurality of aluminum alloy blades extending outwardly to a perimeter ring. A plurality of triangular shaped rigid knuckles is coupled to the perimeter ring. A blade spacer is attached to a leading edge of each blade, the blade spacer constructed of a wear resistant material. In operation, rotation of the blades provides thrust for positioning the knuckles against an aquaculture net, whereby the knuckles remove fouling from the aquaculture net by violently shaking the aquaculture net. The blade spacer positions the propeller assembly a predetermined distance from the aquaculture net to protect the leading edge by distance and/or use of a wear resistant material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.