Oliver Sommer

Door or gate

Protective wall e.g. concrete wall, has pipe sections arranged between two parallel extending carrier elements and laid adjacently and filled with filling materials, where pipe sections are arranged in vertical direction

Pneumatic sealing for doors or gates and door or gate with such a sealing for protection against electromagnetic pulse

Grid for covering opening that is formed for passing e.g. piping in building, has screw units placed on sides of holes for holding lamellas at pre-determined position of rods, where lamellas are arranged at distance to each other or to rods

Verschlusseinrichtung für eine Tür und Verschlusszunge

Protection door with a frame sided sealing

Door locking device

Objektschutztür mit rahmenseitiger Dichtung

Locking-mechanism control means

Protection wall construction for use in plants such as nuclear plants, has external wall made of concrete or brick, at which plates of metal are attached in area of base element and cover element