Abstract: A track guiding system includes a first track segment having a first end and a second end, the first track segment including a first linear beam segment operatively coupled to a first linear plate segment. The track guiding system further includes and a second track segment having a first end and a second end, the second track segment including a second linear beam segment operatively coupled to a second linear plate segment, wherein the first end of the first track segment is adapted to be operatively coupled to the second end of the second track segment, a first end of the first linear beam segment proximate the first end of the first track segment being adapted to overlap a second end of the second linear plate segment proximate the second end of said second track segment when the second track segment is operatively coupled to the first track segment.

Abstract: A top drive guide system comprising first and second rail sections axially aligned to form a top drive guide rail. A locking member is coupled to the first rail section and is movable between a locked position and an unlocked position. A locking surface is disposed on the second rail section and is operable to engage the locking member when the locking member is in the locked position. An actuator is coupled to the locking member and is operable to move the locking member from the locked position to the unlocked position.

Abstract: A track guiding system includes a track comprising a linear beam and a linear plate operatively coupled to the linear beam. The linear plate has opposing first and second surfaces separated by a first distance and opposing first and second edges separated by a second distance. A first compound edge roller and a second compound edge roller are disposed adjacent to the first and second edges of the linear plate, respectively, for travel along the first and second edges of the linear plate. Each of the first and second compound edge rollers include a first roller element adjacent to the first surface of the linear plate and a second roller element adjacent to the second surface of the linear plate. A carriage is coupled to the first and second compound edge rollers.

Abstract: A track guiding system includes a track comprising a linear beam and a linear plate operatively coupled to the linear beam. The linear plate has opposing first and second surfaces separated by a first distance and opposing first and second edges separated by a second distance. A first compound edge roller and a second compound edge roller are disposed adjacent to the first and second edges of the linear plate, respectively, for travel along the first and second edges of the linear plate. Each of the first and second compound edge rollers include a first roller element adjacent to the first surface of the linear plate and a second roller element adjacent to the second surface of the linear plate. A carriage is coupled to the first and second compound edge rollers.

Abstract: The invention concerns a process for manufacturing a Micro-Electro-Mechanical-System (MEMS) comprising the use of a sacrificial layer, the process being characterized by the fact that the sacrificial layer is made of silicon. The invention also concerns MEMS devices such as SG-MOSEFT, MEMS switches or MEMS tunable capacitors which may be obtained according to the previous cited process.