AT269513B - Device for protecting a viewing opening - Google Patents

Device for protecting a viewing opening

Info

Publication number
AT269513B
AT269513B AT119366A AT119366A AT269513B AT 269513 B AT269513 B AT 269513B AT 119366 A AT119366 A AT 119366A AT 119366 A AT119366 A AT 119366A AT 269513 B AT269513 B AT 269513B
Authority
AT
Austria
Prior art keywords
protecting
viewing opening
viewing
opening
Prior art date
Application number
AT119366A
Other languages
German (de)
Original Assignee
Thomson Houston Comp Francaise
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
Priority claimed from FR5334A external-priority patent/FR1432792A/en
Priority claimed from FR19209A external-priority patent/FR88044E/en
Application filed by Thomson Houston Comp Francaise filed Critical Thomson Houston Comp Francaise
Application granted granted Critical
Publication of AT269513B publication Critical patent/AT269513B/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
AT119366A 1965-02-12 1966-02-10 Device for protecting a viewing opening AT269513B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR5334A FR1432792A (en) 1965-02-12 1965-02-12 Device for protecting a surface against dirt and corrosion
FR19209A FR88044E (en) 1965-06-02 1965-06-02 Device for protecting a surface against dirt and corrosion

Publications (1)

Publication Number Publication Date
AT269513B true AT269513B (en) 1969-03-25

Family

ID=26161999

Family Applications (1)

Application Number Title Priority Date Filing Date
AT119366A AT269513B (en) 1965-02-12 1966-02-10 Device for protecting a viewing opening

Country Status (5)

Country Link
AT (1) AT269513B (en)
BE (1) BE676124A (en)
ES (1) ES322909A1 (en)
GB (1) GB1138451A (en)
NL (1) NL6601759A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211989A1 (en) * 1985-08-22 1987-03-04 Albrecht Bäumer KG Spezialmaschinenfabrik Process and apparatus for estimating the quantity of toric material between calendering rolls
US5406413A (en) * 1991-07-30 1995-04-11 Asahi Kogaku Kogyo Kabushiki Kaisha Lens cover apparatus of optical instrument
SE514473C2 (en) * 1999-03-02 2001-02-26 Alfa Laval Agri Ab Protective device for a teat locator
WO2024028707A1 (en) * 2022-08-03 2024-02-08 Georgia-Pacific Gypsum Llc Apparatuses and systems for shielding an optical sensor, self-cleaning optical sensor assembly, and methods of using the same

Also Published As

Publication number Publication date
BE676124A (en) 1966-06-16
ES322909A1 (en) 1966-08-01
GB1138451A (en) 1969-01-01
NL6601759A (en) 1966-08-15

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