Onder 2.10 Gerechtshof Den Haag 17 januari 2017

Because of the limited demand for amphibious earth working vehicles, it is not commercially feasible to mass produce excavators specifically designed for marshy environments. Therefore, there is a demand for means to convert conventional dry land excavating equipment to an amphibious environment. Previous attempts to satisfy this demand have met with only limited success in part because the approaches taken were too complicated, and therefore too expensive. Some of the prior art attempts in this area utilized separate engines, one for the excavator itself, and one for the track drive, which of course increased weight, cost and maintenance requirements. Other proposals, such as those shown in U.S. Pat. Nos. 3,842,785 and 4,124,124 employed outboard lubricated chains extending between the prime mover and axles supporting the tracks on the pontoons. The drive chains presented serious environmental and safety hazards.

$ curl -s https://bron.page/api/v1/blobs/d0df7aeee1da82faaabd8768c957a1537d0174fd1e21ed46526119c97ba62f5c | shasum -a 256