Saes Getters S.p.a.

Daniele Martelli

Giuseppe Urso

Claudio Boffito

Raffaello Lattuada

Corrado Carretti

Luisa Mantovani

Stefano Trivellato

Alessio Corazza

Bruno Ferrario

Paolo Della Porta

Fabrizio Doni

Mario Borghi

Luciano Pisoni

Alessandro Martucci

Massimo Guglielmi

Plinio Innocenzi

Marialuisa Mantovani

Giovanni Salvago

Giuseppe Lani

A process is provided for manufacturing devices that carry an active material. The process involves the continuous deposition of a strip of low-melting alloy in the liquid state on a ribbon of a metal net or a micro-perforated and stretched sheet metal, which surface has been pre-treated, for example by means of deoxidation. The ribbon is preferably prepared for subsequent cutting into individual components with active material. The deposition can occur by immersion into laminar wave or into a constant jet, by spraying of small drops or by liquid dispensation.

Process for manufacturing devices carrying at least one active material by deposition of a low-melting alloy

An evaporable getter device is provided for cathode-ray tubes (CRTs). The getter device is formed by a metallic container () containing a mixture of powders () of the compound BaAland nickel (Ni), and by two different metallic nets (), superimposed and positioned in the container over the powders. The device allows one to obtain a barium distribution in the CRT that is more uniform and wider than that obtainable with a conventional getter device.

Evaporable getter device with metallic nets

An evaporable getter device containing a mixture of nickel and BaAl,is made to have a shorter barium evaporation time by using a mixture of nickel powders in which the particles of nickel have different morphologies and different specific areas.

Evaporable getter device with reduced activation time

Nitrogenated evaporable getter devices are disclosed which are resistant to the fritting conditions of the production processes of kinescopes for times of about five hours. A process is also disclosed for the production of these devices. The nitrogenated evaporable getter material comprises: 1) BaAl.sub.4 powder, 2) nickel powder, and 3) iron nitride and/or germanium nitride particles that have been coated with a thin vitreous layer of boron oxide and silicon oxide, formed through a sol-gel process employing a starting solution wherein the atomic ratio between boron and silicon ranges from about 4:1 to 0.75:1.

Nitrogenated evaporable getter devices with high fritting resistance and

A frittable evaporable getter device includes a metallic container having a disk-shaped bottom wall and a side wall extending upwardly from the bottom wall. A powder compact having an upper surface in which at least two radial recesses are formed is disposed in the container. The powder compact is formed of a mixture of BaAl.sub.4 powder and nickel powder. A discontinuous metallic member is embedded in the powder compact such that the member does not protrude from the upper surface of the powder compact and the member is spaced apart from the bottom wall of the container. An evaporable getter device having reduced activation time includes a powder compact formed of a mixture of BaAl.sub.4 powder, nickel powder, and between about 0.3% and about 5% by weight based on the total weight of the mixture of a third component selected from aluminum, iron, titanium, and alloys thereof.

Frittable-evaporable getters having discontinuous metallic members,

The invention relates to an integrated getter device essentially consisting of at least one evaporable getter device and at least one non-evaporable getter device, wherein the different getter devices circumscribe areas at least partially superimposed or coincident, lying on essentially parallel or coincident planes and preferably arranged in a coaxial way.

Integrated getter device suitable for flat displays

An evaporable getter device for mounting in an electron tube is provided which comprises a pan-shaped container having a vertical side wall formed around the perimeter of a disc shaped bottom wall and a pulverized getter metal vapor releasing material pressed into the space formed by said side wall and said bottom wall. There is also provided a first heat transfer retarding means which delays the transfer of heat in a circumferential direction through the getter metal vapor releasing material. There is also provided a second heat transfer retarding means which delays the transfer of heat in a radial direction through the getter vapor releasing material. When the getter device is heated by currents induced from a radio frequency field created by a coil positioned outside the tube, opposite the getter device, high yields of getter metal are released in a short time without detachment of the getter material residues from the container.

High yield pan-shaped getter device

A device is described for the sorption of hydrogen isotopes at low pressures, their storage and their subsequent release at high pressures. Use is made of a getter material having linear sorption isotherms and a compressor material having non-linear sorption isotherms.

Devices for the sorption, storage and release of hydrogen isotopes

A getter device comprises a getter metal vapor releasing material and a source of an alkali metal which releases an alkali metal during or after the latter period of getter metal evaporation. Such getter devices are found to produce less methane after evaporation of the getter metal without producing higher hydrocarbons. A higher pressure of hydrogen is formed which aids cathode functioning.

Low methane getter device

A getter assembly is described which has an improved support such that the points of contact with the glass wall of a cathode ray tube have as low a temperature as possible. A tab member for mounting the getter device is attached to the lower side of a central disc shaped zone of the getter device formed of an upraised bottom portion of the bottom wall of the ring getter. Said tab member extends without touching the inner side wall of the getter material container of its bottom wall. A support means is attached, for example by spot welding, to the tab member, and has at least two concave surfaces facing the bottom wall of the container and lying in a plane perpendicular to the outwardly extending zone of the tab member. The support means can be attached to the tab in the same area as which the tab is attached to the central zone of the upraised bottom portion of the container.

Getter assembly with improved support

An induction coil and a process for evenly heating an asymmetric getter device. The induction coil has a major coil and a smaller minor coil. A portion of the major coil is substantially coincidental with a portion of the minor coil. A different portion of the major coil is offset with respect to the minor coil.

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Milan, Italy

Daniele Martelli