Patent ID: 11969680
Assignee: CATERPILLAR INC.
Field: Chemical engineering (Chemistry)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A method of creating a computer-readable three-dimensional model comprising:
inputting data representing a filter or a filter medium to a computer; and
using the data to represent the filter or filter medium as a three-dimensional model, the three-dimensional model being suitable for use in manufacturing the filter or filter medium;
wherein the filter or the filter medium represented by the three-dimensional model includes a plurality of layers, including a first layer and a second layer in contact with the first layer, each formed by a plurality of undulating strips, and a plurality of pores having within the filter or the filter medium an inhomogeneous pore structure; and
wherein the plurality of undulating strips of the first layer undulate in a first predetermined direction, the plurality of undulating strips of the second layer undulate in a second predetermined direction that is not parallel to the first predetermined direction, and the plurality of pores are each formed between the first layer and the second layer.