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1. (WO1997017714) VACCUUM TUBE PROVIDED WITH A LINE-SHAPED GETTER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/017714 International Application No.: PCT/IB1996/001153
Publication Date: 15.05.1997 International Filing Date: 25.10.1996
IPC:
H01J 7/18 (2006.01) ,H01J 29/94 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
7
Details not provided for in groups H01J1/-H01J5/87
14
Means for obtaining or maintaining the desired pressure within the vessel
18
Means for absorbing or adsorbing gas, e.g. by gettering
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
29
Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/113
94
Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
Applicants:
PHILIPS ELECTRONICS N.V. [NL/NL]; Groenewoudseweg 1 NL-5621 BA Eindhoven, NL
PHILIPS NORDEN AB [SE/SE]; Kottbygatan 7 Kista S-164 85 Stockholm, SE (SE)
Inventors:
PETERS, Cornelis; NL
VAN LAARHOVEN, Franciscus, Martinus, Henricus; NL
Agent:
KOPPEN, Jan; Internationaal Octrooibureau B.V. P.O. Box 220 NL-5600 AE Eindhoven, NL
Priority Data:
95203030.208.11.1995EP
Title (EN) VACCUUM TUBE PROVIDED WITH A LINE-SHAPED GETTER
(FR) TUBE A VIDE MUNI D'UN DEGAZEUR LINEAIRE
Abstract:
(EN) A vacuum tube is provided with a line-shaped getter, which comprises a holder (2) with a longitudinal axis, which holder (2) contains a getter material (3) over at least a part of its length, said getter being provided with clamping means to clamp the holder (2). The vacuum tube comprises aligning means for exerting a torque about the longitudinal axis of the holder (2), said torque being as small as possible for a preferred orientation of the holder (2) relative to the clamping means. The clamping means preferably comprise two leaf springs (7, 7'), which are bent so as to be S-shaped and which are provided with apertures (9, 9', 9'') at locations where the leaf springs (7, 7') intersect, for passing the holder (2), and a member (6; 19) is provided on the holder (2) in a clamping manner and the clamping means are provided with an orientation surface (17, 17'; 18, 18'), which extends radially relative to the longitudinal axis of the holder (2). In this manner, during the activation of the getter, displacements of the holder (2) in a direction transverse to the longitudinal axis are precluded. Both constructions can be used independently and cause the position of the holder (2) to be more accurately defined relative to the other elements of the vacuum tube.
(FR) Tube à vide muni d'un dégazeur linéaire, constitué d'un support (2) à axe longitudinal, ce support (2) contenant un matériau dégazeur (3) sur au moins une partie de sa longueur, ce dégazeur étant muni d'un dispositif de serrage permettant d'agripper le support (2). Le tube à vide comporte un moyen d'alignement permettant d'exercer un couple de torsion sur l'axe longitudinal du support (2), ce couple étant aussi faible que possible pour une orientation préférée du support (2) relativement au moyen de serrage. Le moyen de serrage comporte de préférence deux ressorts à lames (7,7') pliés en S, munis d'ouvertures (9, 9', 92) à des emplacements où les ressorts à lames (7, 7') se croisent, destinées au passage du support (2); le support (2) est muni d'un élément fixé par serrage, le dispositif de serrage ayant une surface d'orientation (17, 17', 18, 18') s'étendant radialement relativement à l'axe longitudinal du support (2). De la sorte, au cours de l'activation du dégazeur, on évite les déplacements du support (2) dans une direction transversale à l'axe longitudinal. Les deux structures peuvent être utilisées de façon indépendantes et permettent de définir plus précisément la position du support (2) relativement aux autres éléments du tube à vide.
Designated States: JP
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0808510JPH11500859