Inventive Principle #37: Thermal Expansion
Use thermal expansion or contraction in a positive way. Use variation in thermal properties to achieve useful effects.
Examples of the Use of This Principle:
1. Shrink wrapping
2. Expansion joints
3. Bimetallic strips for thermometers, bi-metallic hinges for self-opening blinds
4. Shape memory alloys
5. Self-regulating organization, differing stimulus for individuals and teams
6. Arbitrage
7. Insurance premium changes with perceived dangers
8. Leaf spring thermostats
9. Marketing efforts respond to popularity of product
10. Thermal switch cutouts
Where have you seen this principle used?