FR2418624A1 - Reduced power electrified trawl net - utilises one half wave of sinusoidal AC power input to electrodes at net mouth and adjacent to boat stern - Google Patents

Reduced power electrified trawl net - utilises one half wave of sinusoidal AC power input to electrodes at net mouth and adjacent to boat stern

Info

Publication number
FR2418624A1
FR2418624A1 FR7806121A FR7806121A FR2418624A1 FR 2418624 A1 FR2418624 A1 FR 2418624A1 FR 7806121 A FR7806121 A FR 7806121A FR 7806121 A FR7806121 A FR 7806121A FR 2418624 A1 FR2418624 A1 FR 2418624A1
Authority
FR
France
Prior art keywords
net
sinusoidal
electrified
utilises
electrodes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR7806121A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JESTIN JEAN MARIE
Original Assignee
JESTIN JEAN MARIE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JESTIN JEAN MARIE filed Critical JESTIN JEAN MARIE
Priority to FR7806121A priority Critical patent/FR2418624A1/en
Publication of FR2418624A1 publication Critical patent/FR2418624A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K79/00—Methods or means of catching fish in bulk not provided for in groups A01K69/00 - A01K77/00, e.g. fish pumps; Detection of fish; Whale fishery
    • A01K79/02—Methods or means of catching fish in bulk not provided for in groups A01K69/00 - A01K77/00, e.g. fish pumps; Detection of fish; Whale fishery by electrocution
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K73/00—Drawn nets
    • A01K73/02—Trawling nets

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Prevention Of Electric Corrosion (AREA)

Abstract

The electrified trawl net has a pocket (1) with an opening (2) which has an upper line of floats (3), a lowr line of weights (4) and wings (5a, 5b). The dragnet is drawn by a boat by means of at least one cable (6) and a transverse beam (7) to whose ends the wings of the pocket are connected. An anode (9) is carried at the middle of the beam near the pocket opening and a cathode is immersed near the boat. The anode and cathode are fed with periodic impulses from an electrical circuit. The impulses are derived from one half of an alternating input of sinusoidal form.
FR7806121A 1978-03-03 1978-03-03 Reduced power electrified trawl net - utilises one half wave of sinusoidal AC power input to electrodes at net mouth and adjacent to boat stern Withdrawn FR2418624A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7806121A FR2418624A1 (en) 1978-03-03 1978-03-03 Reduced power electrified trawl net - utilises one half wave of sinusoidal AC power input to electrodes at net mouth and adjacent to boat stern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7806121A FR2418624A1 (en) 1978-03-03 1978-03-03 Reduced power electrified trawl net - utilises one half wave of sinusoidal AC power input to electrodes at net mouth and adjacent to boat stern

Publications (1)

Publication Number Publication Date
FR2418624A1 true FR2418624A1 (en) 1979-09-28

Family

ID=9205311

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7806121A Withdrawn FR2418624A1 (en) 1978-03-03 1978-03-03 Reduced power electrified trawl net - utilises one half wave of sinusoidal AC power input to electrodes at net mouth and adjacent to boat stern

Country Status (1)

Country Link
FR (1) FR2418624A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102835362A (en) * 2012-08-24 2012-12-26 李三川 Device for catching river snails
CN109392853A (en) * 2018-11-19 2019-03-01 中国科学院南京地理与湖泊研究所 Automate fish electric fishing science investigation apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE496864A (en) *
US1103173A (en) * 1913-08-13 1914-07-14 Chung Cheting Shrimp-net.
FR546727A (en) * 1922-02-01 1922-11-22 Improvements to otter trawls and similar fishing nets
US2745205A (en) * 1949-08-10 1956-05-15 Siemens Ag Electrical fishing equipments
US3005280A (en) * 1957-09-18 1961-10-24 Anna Vang Guiding of fish by electrical impulses

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE496864A (en) *
US1103173A (en) * 1913-08-13 1914-07-14 Chung Cheting Shrimp-net.
FR546727A (en) * 1922-02-01 1922-11-22 Improvements to otter trawls and similar fishing nets
US2745205A (en) * 1949-08-10 1956-05-15 Siemens Ag Electrical fishing equipments
US3005280A (en) * 1957-09-18 1961-10-24 Anna Vang Guiding of fish by electrical impulses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/68 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102835362A (en) * 2012-08-24 2012-12-26 李三川 Device for catching river snails
CN109392853A (en) * 2018-11-19 2019-03-01 中国科学院南京地理与湖泊研究所 Automate fish electric fishing science investigation apparatus
CN109392853B (en) * 2018-11-19 2024-08-13 中国科学院南京地理与湖泊研究所 Automatic fish electric catching scientific investigation device

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Legal Events

Date Code Title Description
ST Notification of lapse