GB1105222A – Processes and charges for filling discharge containers with mercury vapour
– Google Patents
GB1105222A – Processes and charges for filling discharge containers with mercury vapour
– Google Patents
Processes and charges for filling discharge containers with mercury vapour
Info
Publication number
GB1105222A
GB1105222A
GB870/66A
GB87066A
GB1105222A
GB 1105222 A
GB1105222 A
GB 1105222A
GB 870/66 A
GB870/66 A
GB 870/66A
GB 87066 A
GB87066 A
GB 87066A
GB 1105222 A
GB1105222 A
GB 1105222A
Authority
GB
United Kingdom
Prior art keywords
mercury
powdered
charge
granules
weight
Prior art date
1965-06-08
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
GB870/66A
Inventor
Paolo Della Porta
Bruno Kindl
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.)
SAES Getters SpA
Original Assignee
SAES Getters SpA
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.)
1965-06-08
Filing date
1966-01-07
Publication date
1968-03-06
1966-01-07
Application filed by SAES Getters SpA
filed
Critical
SAES Getters SpA
1968-03-06
Publication of GB1105222A
publication
Critical
patent/GB1105222A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
H01J7/183—Composition or manufacture of getters
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
H01J9/38—Exhausting, degassing, filling, or cleaning vessels
H01J9/395—Filling vessels
Abstract
1,105,222. Filling and gettering discharge tubes. S.A.E.S. GETTERS S.p.A. 7 Jan., 1966 [8 Jan., 1965], No. 870/66. Heading H1D. A process for filling a discharge container with mercury vapour and for removing noxious gases employs the steps of placing a charge which consists of a powdered mercury compound and a powdered reducing agent on a supporting member within the container and, after a degassing treatment of the container, activating the charge by localized heating so as to induce a mercury evolving reaction, the powdered material of the reducing agent being only slightly active at the degassing temperature and having a grain size such as to comprise a fraction of fine granules and a fraction of relatively coarse granules. A preferred charge is powdered mercury oxide and powdered zirconium-aluminium alloy (84% Zr and 16% Al, by weight) contained in tablets in a weight ratio from 1: 2 to 1: 6, the mercury oxide having a grain size from 0-10 Á, and the alloy comprising 30% by weight of granules from 130-210 Á and 70% by weight of granules from 0-130 Á. The charge is placed on a support in the tube which is heated to outgassing temperature (about 360 C.) at which no reaction occurs. The tablet is then heated locally to about 800 C. at which mercury is evolved and the reducing agent absorbs other evolved gases. Thereafter the non-evaporable getter material is active for the lifetime of the tube.
GB870/66A
1965-06-08
1966-01-07
Processes and charges for filling discharge containers with mercury vapour
Expired
GB1105222A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
IT31965
1965-06-08
Publications (1)
Publication Number
Publication Date
GB1105222A
true
GB1105222A
(en)
1968-03-06
Family
ID=11098590
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB870/66A
Expired
GB1105222A
(en)
1965-06-08
1966-01-07
Processes and charges for filling discharge containers with mercury vapour
Country Status (4)
Country
Link
US
(1)
US3385644A
(en)
CH
(1)
CH455038A
(en)
DE
(1)
DE1514658B1
(en)
GB
(1)
GB1105222A
(en)
Families Citing this family (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1182150A
(en)
*
1966-12-13
1970-02-25
Getters Spa
Alkali Metal Vapour Dispensers.
JPS4947512B1
(en)
*
1969-09-29
1974-12-16
US3657589A
(en)
*
1969-10-20
1972-04-18
Getters Spa
Mercury generation
US4988318A
(en)
*
1983-03-10
1991-01-29
Gte Products Corporation
Unsaturated vapor high pressure sodium lamp arc tube fabrication process
CA1239980A
(en)
*
1983-03-10
1988-08-02
Gte Products Corporation
Arc tube dosing process for unsaturated high pressure sodium lamp
US5898272A
(en)
*
1997-08-21
1999-04-27
Everbrite, Inc.
Cathode for gas discharge lamp
DE10117365A1
(en)
*
2001-04-06
2002-10-10
Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh
Low-pressure discharge lamp
EP2798518B1
(en)
2013-02-20
2017-06-28
Fastly Inc.
Enhanced thread handling in security handshaking
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB967685A
(en)
*
1962-03-28
1964-08-26
Hivac Ltd
Improvements in or relating to gas discharge tubes
US3279877A
(en)
*
1963-12-31
1966-10-18
Westinghouse Electric Corp
Method for processing high-pressure vapor-discharge arc tube
1965
1965-12-24
CH
CH1782765A
patent/CH455038A/en
unknown
1966
1966-01-05
DE
DE19661514658
patent/DE1514658B1/en
active
Pending
1966-01-05
US
US518789A
patent/US3385644A/en
not_active
Expired – Lifetime
1966-01-07
GB
GB870/66A
patent/GB1105222A/en
not_active
Expired
Also Published As
Publication number
Publication date
CH455038A
(en)
1968-04-30
US3385644A
(en)
1968-05-28
DE1514658B1
(en)
1970-05-14
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None