Hi Jurij,
This is Bogdan from Romania.
I'm a mechanical engineer - specialized in the industrial robotic field, 3D designer and modeler (from time to time and some projects I could make the functional prototype too).
I'm doing product design, industrial design, reverse engineering, ideation, etc.
I have over 15 years experience working on various systems/devices across multiple industries, from concept to launch.
1 - question: the patent you've attached is for reference only, right? (just to give a clue on what kind of device/system is about)
2 - which is your objective? to have the cad design of your innovation, to find a way to design around existing patents (circumventing the claims) or just to have a reference model based on the existing patents?...
3 - as you probably know, or find out, while the patent applications are compulsory to have a clear description and formulation of the claims (in such way that a person in the field to be able to replicate the invention), the inventors often "forget" to give all the info, and make use of the confidentiality of the "know how secrecy", so will not be possible to find all the info in the patent application and consequently not possible to build that invention
4 - for example given in the attached pdf, i could design all the parts and assemblies and also create a dynamic simulation of the movements for a given sequence (linear displacement x mm, rotation left y degrees, etc, etc) - but separate from this project
Regards
Bogdan