GB1455908A - Getter devices - Google Patents

Getter devices

Info

Publication number
GB1455908A
GB1455908A GB219074A GB219074A GB1455908A GB 1455908 A GB1455908 A GB 1455908A GB 219074 A GB219074 A GB 219074A GB 219074 A GB219074 A GB 219074A GB 1455908 A GB1455908 A GB 1455908A
Authority
GB
United Kingdom
Prior art keywords
strip
compressed
getter
uncompressed
portions
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
GB219074A
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.)
Filing date
Publication date
Application filed by SAES Getters SpA filed Critical SAES Getters SpA
Publication of GB1455908A publication Critical patent/GB1455908A/en
Expired legal-status Critical Current

Links

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
    • H01J7/186—Getter supports

Landscapes

  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Catalysts (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

1455908 Gettering SAES GETTERS SpA 17 Jan 1974 [18 Jan 1973] 02190/74 Heading H1D A getter device comprises a metallic structure with interconnected cells filled at least in part with particulate getter material, and has at least one attachment zone integral with the structure and consisting of compressed zones of the structure. As shown in Fig. 2, a strip of spongiform metal is compressed as by a press (Fig. 3, not shown) at areas 11<SP>1</SP>, 12<SP>1</SP> etc., leaving uncompressed portions 11, 12 etc. between them, the transition between the compressed and uncompressed portions being gradual. Where the strip is thicker, it is cut as well as compressed. The uncompressed areas may have various forms, which are described, and they may be detached from the strip except for a tab of compressed material. Getter powder may be flowed into the cells, or it may be suspended in a liquid in which the structure is immersed. As shown in Fig. 19, a strip 190 of spongy structures 191, 1911 etc. joined by intermediate compressed portions 192, 192<SP>1</SP> etc. is engaged by a toothed wheel 195 which rotates to move the strip 190 through a liquid suspension 194 of a powdered getter in a bath 193. From the bath the strip 190 passes through a drying oven 197 after which it is coiled, or it may be heated in a vacuum furnace. Suitable metals for the structure are Ni, Cr, Fe, Ti, Co, Mo and their alloys. The structure may be formed as described in Specifications 1,263,704 and 1,289,690, or in U.S.A. Specification 3,679,552, the size of the passages being between <SP>1</SP>/ 125 -<SP>1</SP>/ 10 inch, and preferably <SP>1</SP>/ 100 - <SP>1</SP>/ 25 inch. Getter materials may be evaporating materials such as Ca, Sr, Mg or preferably Ba; or non-evaporating materials such as Hf, U, Ti, Zr, Th, V, Ta, Nb, W and their alloys, particularly with Al, Co, Mn or misch metall. The getter material may be mixed with an antisintering agent, e.g. graphite or a particulate Zn-Al alloy, or refractory oxides or carbides.
GB219074A 1973-01-19 1974-01-17 Getter devices Expired GB1455908A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1933673A IT978256B (en) 1973-01-19 1973-01-19 GETTER DEVICE WITH POROUS SUPPORT HAVING AN ELEMENT OF FIS SOLIDARITY ASSAY WITH THE SAME SUPPORT AND METHOD TO PRODUCE THIS DEVICE

Publications (1)

Publication Number Publication Date
GB1455908A true GB1455908A (en) 1976-11-17

Family

ID=11156844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB219074A Expired GB1455908A (en) 1973-01-19 1974-01-17 Getter devices

Country Status (5)

Country Link
DE (1) DE2401693C3 (en)
FR (1) FR2214960B1 (en)
GB (1) GB1455908A (en)
IT (1) IT978256B (en)
NL (1) NL178635C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157486A (en) * 1984-03-16 1985-10-23 Getters Spa Manufacture of porous non-evaporable getter devices
EP2487432A1 (en) * 2009-10-05 2012-08-15 Abengoa Solar New Technologies, S.A. Vacuum-enhancing system, or non-evaporable getter
EP2487433A4 (en) * 2009-10-05 2015-04-15 Abengoa Solar New Tech Sa Method for producing a solar power receiving tube and resulting tube

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157486A (en) * 1984-03-16 1985-10-23 Getters Spa Manufacture of porous non-evaporable getter devices
EP2487432A1 (en) * 2009-10-05 2012-08-15 Abengoa Solar New Technologies, S.A. Vacuum-enhancing system, or non-evaporable getter
US20120251336A1 (en) * 2009-10-05 2012-10-04 Abengoa Solar New Technologies, S.A. Vacuum enhancing system or non-evaporable getter
EP2487432A4 (en) * 2009-10-05 2014-10-29 Abengoa Solar New Tech Sa Vacuum-enhancing system, or non-evaporable getter
EP2487433A4 (en) * 2009-10-05 2015-04-15 Abengoa Solar New Tech Sa Method for producing a solar power receiving tube and resulting tube

Also Published As

Publication number Publication date
NL178635C (en) 1986-04-16
IT978256B (en) 1974-09-20
DE2401693A1 (en) 1974-07-25
DE2401693C3 (en) 1978-03-16
NL178635B (en) 1985-11-18
NL7400724A (en) 1974-07-22
DE2401693B2 (en) 1977-07-07
FR2214960A1 (en) 1974-08-19
FR2214960B1 (en) 1976-11-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee