EP0962691A3 - Yttrium oxide based gas mantle - Google Patents

Yttrium oxide based gas mantle Download PDF

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Publication number
EP0962691A3
EP0962691A3 EP99304169A EP99304169A EP0962691A3 EP 0962691 A3 EP0962691 A3 EP 0962691A3 EP 99304169 A EP99304169 A EP 99304169A EP 99304169 A EP99304169 A EP 99304169A EP 0962691 A3 EP0962691 A3 EP 0962691A3
Authority
EP
European Patent Office
Prior art keywords
oxide
mol
mantle
yttrium oxide
based gas
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.)
Granted
Application number
EP99304169A
Other languages
German (de)
French (fr)
Other versions
EP0962691A2 (en
EP0962691B1 (en
Inventor
Rosemarie Darmanin
Adrian M. Borg
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.)
Levelrecall Ltd
Original Assignee
Levelrecall Ltd
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 Levelrecall Ltd filed Critical Levelrecall Ltd
Publication of EP0962691A2 publication Critical patent/EP0962691A2/en
Publication of EP0962691A3 publication Critical patent/EP0962691A3/en
Application granted granted Critical
Publication of EP0962691B1 publication Critical patent/EP0962691B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21H—INCANDESCENT MANTLES; OTHER INCANDESCENT BODIES HEATED BY COMBUSTION
    • F21H1/00—Incandescent mantles; Selection of imbibition liquids therefor
    • F21H1/02—Incandescent mantles; Selection of imbibition liquids therefor characterised by the material thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Artificial Filaments (AREA)

Abstract

The present invention relates to incandescent pre-formed low-pressure gas mantles useful for fixed fuel-burning lanterns, such as stationary lamp posts or patio lights (typically at gas pressures of 2.7KPa). The pre-formed low-pressure gas mantle has a body comprising: (A) 77.1 to 85.3 mol% yttrium oxide as the predominant metal oxide, (B) 1.4 to 3.1 mol% of at least one lanthanide oxide, (C) 2.2 to 5.0 mol% of at least one of magnesium oxide and aluminium oxide, and (D) 11.1 to 14.8 mol% of calcium oxide, based on the total molar content of (A), (B), (C) and (D). Such a mantle is non-radioactive, durable and provides good illumination.
EP19990304169 1998-06-06 1999-05-28 Yttrium oxide based gas mantle Expired - Lifetime EP0962691B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9812110.6A GB9812110D0 (en) 1998-06-06 1998-06-06 Yttrium oxide based gas mantle
GB9812110 1998-06-06

Publications (3)

Publication Number Publication Date
EP0962691A2 EP0962691A2 (en) 1999-12-08
EP0962691A3 true EP0962691A3 (en) 2000-10-25
EP0962691B1 EP0962691B1 (en) 2003-05-14

Family

ID=10833264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990304169 Expired - Lifetime EP0962691B1 (en) 1998-06-06 1999-05-28 Yttrium oxide based gas mantle

Country Status (3)

Country Link
EP (1) EP0962691B1 (en)
DE (1) DE69907806T2 (en)
GB (1) GB9812110D0 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145811A (en) * 1983-08-29 1985-04-03 Coleman Co Mantles for lanterns

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US563524A (en) 1896-07-07 Incandescent lighting substance
FR2518218A1 (en) 1981-12-11 1983-06-17 Commissariat Energie Atomique CANDOLUMINESCENT MATERIAL, PROCESS FOR PREPARING THE SAME AND USE THEREOF AS A GAS LAMP SLEEVE
US4975044A (en) 1982-08-16 1990-12-04 Tpv Energy Systems, Inc. Gas mantle technology
MXPA05008649A (en) 2003-02-14 2005-11-23 Combinatorx Inc Combination therapy for the treatment of immunoinflammatory disorders.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145811A (en) * 1983-08-29 1985-04-03 Coleman Co Mantles for lanterns

Also Published As

Publication number Publication date
DE69907806T2 (en) 2004-01-22
GB9812110D0 (en) 1998-08-05
DE69907806D1 (en) 2003-06-18
EP0962691A2 (en) 1999-12-08
EP0962691B1 (en) 2003-05-14

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