Mechanical patents generally only need to clarify the shape and structural relationship.
It is not recommended to write functional descriptions such as working processes and principles.
In When the relationship between shape and structure is difficult to express clearly in words, you can use functional description to help understand the relationship between shape and structure, but do not use ambiguous descriptions that make the protection content unclear.
Sometimes The structures are the same, but the functions are different. At this time, functional language must be used to distinguish.
New models should try to avoid functional language, and inventions can appropriately add functional descriptions.
“With the help of the force generated between the spiral surface of the driving part and the edge of the opening, the driving part will drive the actuating part to rotate when it moves upward or downward with the upper rod body”, that is, Functional description, if the previous structural description is clear and unambiguous, there is no need to write this paragraph.