GB808539A - Improvements in or relating to holders for vaporisable getters - Google Patents
Improvements in or relating to holders for vaporisable gettersInfo
- Publication number
- GB808539A GB808539A GB35609/56A GB3560956A GB808539A GB 808539 A GB808539 A GB 808539A GB 35609/56 A GB35609/56 A GB 35609/56A GB 3560956 A GB3560956 A GB 3560956A GB 808539 A GB808539 A GB 808539A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pills
- strip
- getter
- parts
- nov
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P33/00—Preparation of steroids
- C12P33/12—Acting on D ring
- C12P33/16—Acting at 17 position
- C12P33/18—Hydroxylating at 17 position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/94—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
Landscapes
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
808,539. Discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 21, 1956 [Nov. 24, 1955], No. 35609/56. Class 39(1). A getter holder comprises an annular metal strip carrying a number of getter pills, each being positioned on a flat part of the strip, the strip between adjacent pills being bent so that each pill-carrying section is at an angle (i.e. not parallel) with the axis of the annulus. Fig. 3 shows such an annular strip, the parts 1a remaining cylindrical, the parts 1c being sharply bent so that the various parts 1c, each containing a getter pill 2, are flattened and inclined at the same angle to the axis of the strip. The getter is mounted in the neck of a cathode-ray tube so that on firing by h-f heating, it deposits along the neck in the direction of the screen. Fig. 3 has six pills. Fig. 6 shows an arrangement with ten pills, in which the facets containing the pills extend in one of two directions alternately, forming the bases of two rows of pyramids having alternate apices P<SP>1</SP>, P<SP>2</SP>. The arrows indicate the directions in which the vapour issues.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL343990X | 1955-11-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB808539A true GB808539A (en) | 1959-02-04 |
Family
ID=19784809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB35609/56A Expired GB808539A (en) | 1955-11-24 | 1956-11-21 | Improvements in or relating to holders for vaporisable getters |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE552868A (en) |
CH (1) | CH343990A (en) |
DE (1) | DE1015950B (en) |
FR (1) | FR1165545A (en) |
GB (1) | GB808539A (en) |
NL (2) | NL202321A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2916648A (en) * | 1957-12-05 | 1959-12-08 | Sylvania Electric Prod | Electron tube |
DK93858C (en) * | 1959-03-05 | 1962-07-09 | Philips Nv | Getterholder. |
US3225910A (en) * | 1961-02-04 | 1965-12-28 | Porta Paolo Della | Getter devices with non-evaporated gettering material, for maintaining vacuum in electronic tubes |
US3439210A (en) * | 1966-01-03 | 1969-04-15 | Hughes Aircraft Co | Thermionic emission cathode having reduced frontal area and enlarged emission area for ion bombardment environment |
US3564326A (en) * | 1967-06-15 | 1971-02-16 | Tokyo Shibaura Electric Co | Image pickup tube |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE707069C (en) * | 1935-11-23 | 1941-06-12 | Siemens & Halske Akt Ges | Discharge vessel with metallic wall |
-
0
- NL NL103749D patent/NL103749C/xx active
- BE BE552868D patent/BE552868A/xx unknown
- NL NL202321D patent/NL202321A/xx unknown
-
1956
- 1956-11-20 DE DEN12976A patent/DE1015950B/en active Pending
- 1956-11-21 GB GB35609/56A patent/GB808539A/en not_active Expired
- 1956-11-22 CH CH343990D patent/CH343990A/en unknown
- 1956-11-22 FR FR1165545D patent/FR1165545A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1165545A (en) | 1958-10-27 |
DE1015950B (en) | 1957-09-19 |
NL202321A (en) | |
NL103749C (en) | |
BE552868A (en) | |
CH343990A (en) | 1960-01-15 |
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