FR1467097A - Improvements to protective devices for electromagnetic detection installations - Google Patents

Improvements to protective devices for electromagnetic detection installations

Info

Publication number
FR1467097A
FR1467097A FR39925A FR39925A FR1467097A FR 1467097 A FR1467097 A FR 1467097A FR 39925 A FR39925 A FR 39925A FR 39925 A FR39925 A FR 39925A FR 1467097 A FR1467097 A FR 1467097A
Authority
FR
France
Prior art keywords
protective devices
electromagnetic detection
detection installations
installations
electromagnetic
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
FR39925A
Other languages
French (fr)
Inventor
Lucien Saudreau
Gilbert Bony
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Priority to FR39925A priority Critical patent/FR1467097A/en
Application granted granted Critical
Publication of FR1467097A publication Critical patent/FR1467097A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H01Q1/425—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising a metallic grid
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/30—Alkali metal phosphates
    • C01B25/308—Methods for converting an alkali metal orthophosphate into another one; Purification; Decolorasing; Dehydrating; Drying
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/38—Condensed phosphates
    • C01B25/39—Condensed phosphates of alkali metals
    • C01B25/395—Preparation and dehydrating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
FR39925A 1965-11-26 1965-11-26 Improvements to protective devices for electromagnetic detection installations Expired FR1467097A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR39925A FR1467097A (en) 1965-11-26 1965-11-26 Improvements to protective devices for electromagnetic detection installations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR39925A FR1467097A (en) 1965-11-26 1965-11-26 Improvements to protective devices for electromagnetic detection installations

Publications (1)

Publication Number Publication Date
FR1467097A true FR1467097A (en) 1967-01-27

Family

ID=8593531

Family Applications (1)

Application Number Title Priority Date Filing Date
FR39925A Expired FR1467097A (en) 1965-11-26 1965-11-26 Improvements to protective devices for electromagnetic detection installations

Country Status (1)

Country Link
FR (1) FR1467097A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484155A1 (en) * 1971-06-02 1981-12-11 Thomson Csf Aerial electromagnetic window protector - has parallel wall waveguide assembly defining end faces one of which has complementary radio canopy
FR2881884A1 (en) * 1987-01-22 2006-08-11 Gerard Bony Radome for microwave antenna protection, has zones covered with quasi-uniform cross-hatched network of meshes, where meshes have dimensions, shapes, arrangement and/or constitutions that vary from one location to other of radome surface

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484155A1 (en) * 1971-06-02 1981-12-11 Thomson Csf Aerial electromagnetic window protector - has parallel wall waveguide assembly defining end faces one of which has complementary radio canopy
FR2881884A1 (en) * 1987-01-22 2006-08-11 Gerard Bony Radome for microwave antenna protection, has zones covered with quasi-uniform cross-hatched network of meshes, where meshes have dimensions, shapes, arrangement and/or constitutions that vary from one location to other of radome surface

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