Purse seine hairpin retainer
US4171586A · kind A · utility
Inventor
Key dates
| Filing date | Feb 13, 1978 |
| Grant date | Oct 23, 1979 |
| Priority date | — |
| Expiry date | Feb 13, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K73/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A purse seine hairpin retainer and purse ring handling method which simplifies and lessens the danger involved in collecting and securing the purse rings that are attached to the base of a fish net used in a seining operation for catching fish. The purse rings are threaded by a purse line which is hauled in toward the boat thereby gathering the purse rings together in a closely grouped arrangement and closing the bottom of the net. The purse rings are then threaded onto the lower leg of a hairpin member which is generally hauled up and temporarily suspended over the deck of the boat while upper end of the net is hauled in and the fish removed therefrom. To prevent sudden and potentially dangerous movement of the hairpin member caused by the slipping off of rings or by the pitching movement of the boat a hairpin retainer is disclosed which attaches to the gunwale of the boat by means of a clip formed along its lower edge and has two elongated channel elements along its upper edge which overlap and retain the hairpin member when the latter is hoisted into engagement with the channel elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.