Sun Microsystems, Inc.

Stephen David Sparkes

John David Schnabel

Sean Conor Wrycraft

Jay Kevin Osborn

Gary S Rumney

James Robert Kitchen

Gerald Ronald Gough

There is described a motion control device for preventing free-fall of electronics modules during vertical movement into or out of a supporting structure. The system comprises a rotatable element on the module or structure engageable with surface on the structure or module, respectively, for rolling movement therealong. The rotatable element is provided with a clutch or brake to provide resistance to rotation at least when the module is moving downward relative to the structure. The rotatable element may be a gear engageable with a toothed rack, or a friction roller engageable with a friction surface.

Motion control device

A method of joining a plurality of sheets by means of a blind rivet, comprises: The hole () is radially enlarged at the outwardly facing surface of at least the sheet on the blind side, and the sleeve of the rivet is deformed during setting to form a rivet joint in which no part of the rivet is proud of the outwardly facing surface () of the sheet at least on the blind side of the sheets. The method enables rivet joints to be formed in sheets, for example used in enclosures that house modules, where there is no space available for the set rivets to protrude.

Riveting method

An electronics assembly comprises: (i) a frame ( ); and (ii) a motherboard ( ) that is removable from the frame. One or more motherboards ( ) extend in a plane generally perpendicular to the plane of the motherboard; and a number of elongate guides ( ) are provided for the daughterboards to enable each daughterboard to be moved toward the motherboard into engagement therewith and away from the motherboard out of engagement therefrom. The motherboard ( ) has at least one location element ( ) thereon, which can engage one of the elongate guides ( ) in order to locate the guides and the motherboard with respect to one another. This assembly enables accurate positioning of the daughterboards and the motherboard for forming electrical connections between them even where large tolerances are present in other parts of the assembly.

Electronics assembly

Electronics assembly including a protective shield

Growing community of inventors

Farnborough, United Kingdom

Stephen David Sparkes