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Drenth, K.F. (author)The transport system comprises at least one road surface (2) and at least one vehicle (4) on wheels (6). The road surface (2) has a substantially bowl-shaped cross section and the vehicle (4) is designed so that the wheels (6) run directly on the road surface (2) while the road surface (2) acts as a guide for the direction of movement of the...patent 1999
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- Drenth, K.F. (author) patent 2003
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Lodewijks, G. (author), Drenth, K.F. (author)A supporting body (1) for an axially moving body such as a conveyor belt, a cable or a stepless escalator, comprising a roller (3) rotatable about a shaft (2) for the support of the body and at least a first support (4) in which the shaft of the roller is mounted for carrying the roller, wherein a second support is provided, wherein the first...patent 2004