GB1419429A - Vegetation control - Google Patents

Vegetation control

Info

Publication number
GB1419429A
GB1419429A GB645373A GB645373A GB1419429A GB 1419429 A GB1419429 A GB 1419429A GB 645373 A GB645373 A GB 645373A GB 645373 A GB645373 A GB 645373A GB 1419429 A GB1419429 A GB 1419429A
Authority
GB
United Kingdom
Prior art keywords
radiator
energy
area
vegetation
ghz
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.)
Expired
Application number
GB645373A
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.)
Oceanography International Corp
OCEANOGRAPHY INT CORP
Original Assignee
Oceanography International Corp
OCEANOGRAPHY INT CORP
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 Oceanography International Corp, OCEANOGRAPHY INT CORP filed Critical Oceanography International Corp
Publication of GB1419429A publication Critical patent/GB1419429A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M21/00—Apparatus for the destruction of unwanted vegetation, e.g. weeds
    • A01M21/04—Apparatus for destruction by steam, chemicals, burning, or electricity
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/80—Apparatus for specific applications
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/04—Heating using microwaves
    • H05B2206/045—Microwave disinfection, sterilization, destruction of waste...

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Pathology (AREA)
  • Insects & Arthropods (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Cultivation Of Plants (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
  • Catching Or Destruction (AREA)

Abstract

1419429 Vegetation control OCEANOGRAPHY INTERNATIONAL CORP 9 Feb 1973 [10 Feb 1972] 6453/73 Heading AlE [Also in Division H5] A method of vegetation control uses equipment for generating microwave energy for application to an area of vegetation to be destroyed. A low-frequency generator 12 supplies power to electromagnetic-wave generators 14 which produce continuous-wave, pulsed or modulated signals in the frequency range 0.3 to 300 GHz. The output from these generators is fed via waveguides 16 to an energy radiator 18 which is passed over the selected area. A root plough 40 may be attached to the radiator 18 to reflect back energy into the area being cleared. Variation of the energy density is obtained by controlling the power and duration of the emission from the radiator. In examples quoted, radiation at a frequency of 2.45 GHz is transmitted through a radiator having an effective area of 0.02m<SP>2</SP> at powers of up to 1300 watts for up to 32 seconds giving energy densities up to 2MJ/m<SP>2</SP>.
GB645373A 1972-02-10 1973-02-09 Vegetation control Expired GB1419429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22510972A 1972-02-10 1972-02-10

Publications (1)

Publication Number Publication Date
GB1419429A true GB1419429A (en) 1975-12-31

Family

ID=22843557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB645373A Expired GB1419429A (en) 1972-02-10 1973-02-09 Vegetation control

Country Status (10)

Country Link
JP (1) JPS4885329A (en)
AU (1) AU5180173A (en)
BE (1) BE795218A (en)
CA (1) CA1037257A (en)
DE (1) DE2306061C3 (en)
ES (1) ES411485A1 (en)
FR (1) FR2171287B1 (en)
GB (1) GB1419429A (en)
IT (1) IT983050B (en)
NL (1) NL7301738A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007079542A1 (en) * 2006-01-13 2007-07-19 Brisbane City Council Method and apparatus for treating roots in and around a conduit
FR3065355A1 (en) * 2017-04-24 2018-10-26 Emile Grange MICROWAVE SOIL TREATMENT APPARATUS
CN110809403A (en) * 2017-07-06 2020-02-18 拜耳股份公司 Device for weed control

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2481561A1 (en) * 1980-04-11 1981-10-30 Auhfa Applic Hyperfrequences A Portable microwave generator for heating in e.g. weed-killing - has compact housing containing all elements for concentrating energy over required area and operates from remote power source
AU1332983A (en) * 1983-01-25 1984-08-15 Brandon Deryck Apparatus and method for heating, thawing and/or demoisturizing materials and/or objects
AT383252B (en) * 1984-10-10 1987-06-10 Pacher Gertrud Mag Process for combating the growth of mistletoe on trees
FI74191C (en) * 1985-06-14 1988-01-11 Pertti Veijalainen Procedure for the protection of beneficial plants
KR900008237B1 (en) * 1985-08-29 1990-11-06 윌리암 제이. 클라이라 Viscosity reduction apparatus and method
DE3907144A1 (en) * 1989-03-06 1990-09-13 Michael Gerhardt METHOD FOR REVERSIBLY FASTENING LARGE AREAS ON SUBSTRATES
FR2693617B1 (en) * 1992-07-07 1994-10-07 Bordeaux I Universite Portable microwave application device for localized treatment of various materials.
DK171306B1 (en) * 1994-06-06 1996-09-02 Kaj Jensen Process and apparatus for limiting vegetation where this is undesirable
NL9401694A (en) * 1994-10-13 1996-05-01 Wilhelmus Johannes Boks Device for killing harmful organisms.
JP2009214970A (en) * 2008-03-09 2009-09-24 Kanto Auto Works Ltd Lift for vehicle maintenance
NL2013478B1 (en) 2014-09-17 2016-09-28 Agritron B V Device and method for the efficient introduction of electromagnetic radiation into the ground.
RU2579365C1 (en) * 2015-04-01 2016-04-10 Федеральное государственное казенное военное образовательное учреждение высшего профессионального образования "Военный учебно-научный центр Военно-воздушных сил "Военно-воздушная академия имени профессора Н.Е. Жуковского и Ю.А. Гагарина" (г. Воронеж) Министерства обороны Российской Федерации Device for removal of vegetation
ITUB20160851A1 (en) * 2016-02-18 2017-08-18 Torino Politecnico SYSTEM FOR DISINFECTION OF AGRICULTURAL SOIL
JP2017158533A (en) * 2016-03-02 2017-09-14 株式会社リコー Weeder and weeder control method
FR3104383B1 (en) * 2019-12-11 2021-12-03 Commissariat Energie Atomique Method and apparatus for weed control by electromagnetic radiation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1972050A (en) * 1932-08-08 1934-08-28 Jesse H Davis High frequency method of and apparatus for exterminating insect life in seed or grain or other materials
US2687597A (en) * 1951-04-02 1954-08-31 Rainey Earl Cecil Means for electrically destroying undesired plant life along crop rows
DE2018644A1 (en) * 1970-04-18 1971-11-11 Boes, Christian, Dr.-Ing.; Bade, Peter, Dipl.-Ing.; 1000 Berlin Submarine equipment fouling prevention using a radioisotope

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007079542A1 (en) * 2006-01-13 2007-07-19 Brisbane City Council Method and apparatus for treating roots in and around a conduit
FR3065355A1 (en) * 2017-04-24 2018-10-26 Emile Grange MICROWAVE SOIL TREATMENT APPARATUS
CN110809403A (en) * 2017-07-06 2020-02-18 拜耳股份公司 Device for weed control
US11856937B2 (en) 2017-07-06 2024-01-02 Discovery Purchaser Corporation Apparatus for weed control

Also Published As

Publication number Publication date
FR2171287A1 (en) 1973-09-21
FR2171287B1 (en) 1981-04-17
BE795218A (en) 1973-08-09
DE2306061B2 (en) 1981-04-30
IT983050B (en) 1974-10-31
ES411485A1 (en) 1976-01-01
DE2306061A1 (en) 1973-08-16
JPS4885329A (en) 1973-11-12
CA1037257A (en) 1978-08-29
AU5180173A (en) 1974-08-08
NL7301738A (en) 1973-08-14
DE2306061C3 (en) 1981-12-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee