Telefonaktiebolaget Lm Ericsson (publ)

Lennart Schön

Bjoern Martin Gottfrid Hall

Lucian Rusu

An equipment chassis includes a rear-mountable fan tray assembly (FTA) having a plurality of fans arranged into two or more FTA housing portions, the rear-mountable fan tray assembly being slidably insertable into and retractable from the equipment chassis for facilitating front-to-back airflow while providing ease of access. The FTA housing portions are articulatably coupled to each other and are arranged to follow a smooth motion path when traveling from a horizontal position to a vertical position and vice versa when the rear-mountable fan tray assembly is either inserted into or retracted from the equipment chassis, wherein a top FTA housing portion is guided by a top curvilinear tracking path and a bottom FTA housing portion is guided by a bottom curvilinear tracking path.

Facilitating front access to rear-mounted assembly in equipment chassis

Embodiments relate to a force arrangement () adapted to be mounted on a surface of a radio frequency filter that comprises a housing and a filter part extending along a first axis (A), the filter part being connected to a first side of the housing arranged perpendicular to the first axis (A) in a connection, the connection forming a contact seam between the filter part and the first side of the housing, wherein the force arrangement () comprises a first spring part () that is arranged, when mounted against the first side of the housing, to provide a first force in a first direction along the first axis (A) being opposite a direction of a stress force on the contact seam generated along the first axis (A) due to expansion of the housing () along the first axis (A) in the opposite direction of the provided force.

Force arrangement for radio frequency filters

The invention relates to a cavity filter comprising at least one tuning conductor () presenting a hollow portion (), an isolation device () for a tuning conductor () of a cavity filter, and a node in a mobile communications network, comprising a cavity filter. According to the invention, the tuning conductor () comprises an isolation device () in a non-conductive material, which isolation device () is at least partly inserted into the hollow portion (), and an insertion element () in a conductive material presenting a male thread () that is engaged with an inner surface of the isolation device ().

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Sundbyberg, Sweden

Lennart Schön