FR2663923B1 - Hublots frettes et procede pour leur fabrication. - Google Patents

Hublots frettes et procede pour leur fabrication.

Info

Publication number
FR2663923B1
FR2663923B1 FR9008224A FR9008224A FR2663923B1 FR 2663923 B1 FR2663923 B1 FR 2663923B1 FR 9008224 A FR9008224 A FR 9008224A FR 9008224 A FR9008224 A FR 9008224A FR 2663923 B1 FR2663923 B1 FR 2663923B1
Authority
FR
France
Prior art keywords
frettle
windows
manufacture
frettle windows
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 - Fee Related
Application number
FR9008224A
Other languages
English (en)
Other versions
FR2663923A1 (fr
Inventor
Dominiak Christophe
Jean
Renault Serge Andre Maurice
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.)
Corning SAS
Original Assignee
Corning SAS
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 Corning SAS filed Critical Corning SAS
Priority to FR9008224A priority Critical patent/FR2663923B1/fr
Publication of FR2663923A1 publication Critical patent/FR2663923A1/fr
Application granted granted Critical
Publication of FR2663923B1 publication Critical patent/FR2663923B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/007—Pressure-resistant sight glasses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/004—Sight-glasses therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heat Treatment Of Articles (AREA)
FR9008224A 1990-06-29 1990-06-29 Hublots frettes et procede pour leur fabrication. Expired - Fee Related FR2663923B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9008224A FR2663923B1 (fr) 1990-06-29 1990-06-29 Hublots frettes et procede pour leur fabrication.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9008224A FR2663923B1 (fr) 1990-06-29 1990-06-29 Hublots frettes et procede pour leur fabrication.

Publications (2)

Publication Number Publication Date
FR2663923A1 FR2663923A1 (fr) 1992-01-03
FR2663923B1 true FR2663923B1 (fr) 1993-04-09

Family

ID=9398158

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9008224A Expired - Fee Related FR2663923B1 (fr) 1990-06-29 1990-06-29 Hublots frettes et procede pour leur fabrication.

Country Status (1)

Country Link
FR (1) FR2663923B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206537A (en) * 1977-09-14 1980-06-10 Meginnis Charles E Method of making a sight glass assembly
FR2567911A1 (fr) * 1984-07-20 1986-01-24 Ugine Aciers Acier inoxydable austenoferritique " duplex " et produits corroyes correspondants
DE8813504U1 (de) * 1988-10-27 1989-03-02 Herberts Industrieglas GmbH & Co. KG, 5600 Wuppertal Vorrichtung zum Beobachten gasdicht und druckfest abgeschlossener Räume

Also Published As

Publication number Publication date
FR2663923A1 (fr) 1992-01-03

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Legal Events

Date Code Title Description
ST Notification of lapse