Fish-gathering block
US4165711A · kind A · utility
7Cited by
1References
17Claims
0Family size
Inventor
Key dates
| Filing date | Jun 1, 1977 |
| Grant date | Aug 28, 1979 |
| Priority date | — |
| Expiry date | Jun 1, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K61/77
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A fish-gathering block comprising a plurality of supports erected on a base frame and supporting an upper structure. The current flows through an opening between the lower end of the upper structure and the base frame. This flowthrough opening prevents the sinking of the fish-gathering block into the sea-bottom by eliminating or materially weakening the ocean-current's excavating action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.