Saes Getters S.p.a.

Tiziano A Giorgi

Paolo Della Porta

Livio Rosai

Aldo Barosi

Stephen J Hellier

Brian Storey

This invention relates to a supported getter device comprising a metallic support structure consisting of a three-dimensional network defining a multiplicity of inter-connecting free cells and a particulate getter material substantially filling at least some of said free cells. This invention also relates to a getter device comprising at least one attachment zone of a compressed three-dimensional metal network attached to at least one supported getter material zone comprising a three-dimensional metal network. Methods of making the getter devices are described.

Supported getter

A method of manufacturing a nuclear reactor fuel element which contains a pre-activated non-evaporable getter material such that the getter material starts to sorb gases at a temperature lower than the temperature at which the fuel element walls start to sorb gas. The invention is further directed to a getter device which can be employed in a nuclear fuel element and the nuclear fuel element per se.

Gettering in nuclear fuel elements

A means for connecting a vacuum pump to a chamber to be evacuated comprises an outer wall of low gas permeability and a gas sorptive means substantially coextensive with the inner surface of said outer wall.

Vacuum pumping system and method of use

A wall structure comprising a first surface defining the commencement of a thickness of a metal or ceramic sheet, and a second surface defining the end of said thickness of said sheet said second surface also defining the commencement of a thickness of a three dimensional network defining a multiplicity of interconnecting free cells and a third surface defining the end of said thickness of said three dimensional network.

Wall structure for vacuum enclosure

A charged particle collecting body forming part of an electrode comprises a three dimensional network defining a multiplicity of interconnecting free cells. The dimensions of the cells are selected to permit a major portion of charged particles incident thereon to penetrate a number of free cells before impinging on a strut of the three-dimensional network.

Charged-particle trapping electrode

A getter pump comprising two getter elements wherein the first getter element comprises a metallic substrate having a nonevaporable getter metal embedded therein. The second getter element employs a getter metal having a lower hydrogen equilibrium vapor pressure than that of the first getter element.

Getter pump

A method of manufacturing a nuclear fuel element which contains a pre-activated non-evaporable getter material such that the getter material starts to sorb gas at a temperature lower than the temperature at which the fuel element walls start to sorb gas which getter action at least partially takes place at subatmospheric pressure.

Growing community of inventors

Milan, Italy

Tiziano A Giorgi