39 Inert atmosphere

Replace a normal environment with an inert one.
  • Prevent degradation of a hot metal filament by using an argon atmosphere.

Add neutral parts, or inert additives to an object.
  • Increase the volume of powdered detergent by adding inert ingredients. This makes it easier to measure with conventional tools.
TRIZ principe 39


Is this principle frequently used?

This principle is rarely used with 77 instances in the matrix.

This principle is proposed to solve the following contradictions:

Click on a contradiction to explore it

1/13 1/31 2/13 2/31 2/36 3/22 4/13 5/13 5/23 5/31 6/4 6/17 6/23 6/30 7/13 7/17 7/23 8/23 8/30 11/17 12/37 13/1 13/2 13/6 13/7 13/16 13/22 13/31 13/37 15/17 15/31 15/37 16/13 17/5 17/7 17/11 17/15 17/26 18/31 22/13 23/3 23/6 23/8 23/17 23/27 25/23 25/31 26/17 26/31 27/23 28/31 29/39 30/1 30/3 30/6 30/8 30/10 30/33 31/1 31/2 31/5 31/13 31/16 31/18 31/26 31/27 31/39 33/6 33/8 33/30 36/2 37/6 37/12 37/13 37/15 39/13 39/31


The colour indicates the ranking of the proposed principle to solve the contradiction: 1st, 2nd, 3rd, 4th.
This ranking reflects the frequency of occurrence of the principle in the analysed patents for this type of contradiction.
When a principle appears in first position, it means that it is statistically the most used in the patents studied for this type of problem.