FR1462611A - Focus observation light - Google Patents

Focus observation light

Info

Publication number
FR1462611A
FR1462611A FR3249A FR78003249A FR1462611A FR 1462611 A FR1462611 A FR 1462611A FR 3249 A FR3249 A FR 3249A FR 78003249 A FR78003249 A FR 78003249A FR 1462611 A FR1462611 A FR 1462611A
Authority
FR
France
Prior art keywords
observation light
focus observation
focus
light
observation
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
FR3249A
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.)
Combustion Engineering Inc
Original Assignee
Combustion Engineering Inc
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 Combustion Engineering Inc filed Critical Combustion Engineering Inc
Application granted granted Critical
Publication of FR1462611A publication Critical patent/FR1462611A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M11/00—Safety arrangements
    • F23M11/04—Means for supervising combustion, e.g. windows
    • F23M11/042—Viewing ports of windows

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
FR3249A 1965-02-24 1965-12-28 Focus observation light Expired FR1462611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US434939A US3276442A (en) 1965-02-24 1965-02-24 Furnace observation port

Publications (1)

Publication Number Publication Date
FR1462611A true FR1462611A (en) 1966-12-16

Family

ID=23726325

Family Applications (1)

Application Number Title Priority Date Filing Date
FR3249A Expired FR1462611A (en) 1965-02-24 1965-12-28 Focus observation light

Country Status (2)

Country Link
US (1) US3276442A (en)
FR (1) FR1462611A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2316564A1 (en) * 1975-07-01 1977-01-28 Centre Rech Metallurgique Cleaning of inspection tube on blast furnace - using gas blown across orifice, and scraper for dust removal
FR2656100A1 (en) * 1989-12-18 1991-06-21 France Etat Armement BURNER FOR USE IN AN APPARATUS FOR THE ANALYSIS OF A GAS COMPOSITION BY FLAME SPECTROPHOTOMETRY.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160033202A1 (en) * 2014-07-30 2016-02-04 Vareck Walla Door Assembly for Use with a Furnace
US11703223B2 (en) 2019-09-13 2023-07-18 Onpoint Technologies, Llc Multi-function sight port and method of installing a multi-function sight port

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1717637A (en) * 1925-08-24 1929-06-18 George M Vastine Observation window for furnaces
US2850005A (en) * 1955-01-18 1958-09-02 Diamond Power Speciality Observation window
US2988024A (en) * 1959-11-30 1961-06-13 Blaw Knox Co Soot blower and valve therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2316564A1 (en) * 1975-07-01 1977-01-28 Centre Rech Metallurgique Cleaning of inspection tube on blast furnace - using gas blown across orifice, and scraper for dust removal
FR2656100A1 (en) * 1989-12-18 1991-06-21 France Etat Armement BURNER FOR USE IN AN APPARATUS FOR THE ANALYSIS OF A GAS COMPOSITION BY FLAME SPECTROPHOTOMETRY.
EP0435731A1 (en) * 1989-12-18 1991-07-03 ETAT FRANCAIS Représenté par le délégué général pour l'armement Burner used in an instrument for analysing a gaseous composition by means of flame spectrophotometry

Also Published As

Publication number Publication date
US3276442A (en) 1966-10-04

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