Project TitleElectroactive Sealing
Track Code65959
Short Description

Gary Krutz

Purdue Agricultural and Biological Engineering

TagsMaterials and Manufacturing, mechanical engineering, seals, sensors
Posted DateOct 6, 2017 4:40 PM


Brittany A Newell
Gary Krutz

Electroactive Sealing


O-rings are a common component used in applications that require an airtight seal. Despite their simple design, they play a critical role in preventing leaks, which could cause severe damage to the overall device.

Technology Summary

Researchers at Purdue University have developed an electroactive O-ring that is capable of resealing itself after detecting a leak. Made of a unique polymer, the ring expands when an electric current runs through it, resealing any detected leaks. The device is made with flexible materials that are designed to withstand high heat and pressure, making it suitable for most applications. The ability to reseal leaks dynamically provides a novel advantage in systems where immediate shutoff or repairs are not an option.


  • Flexible material withstands high heat and pressure
  • Allows quick repair in systems where immediate shutoff is not an option

Potential Applications

  • Sealing applications that use O-rings

Stage of Development

Prototype testing validated range of parts

Web Links

For additional information, please contact


File Name Description
65959_2017_06_20_Issued Patent No. 9683663.pdf None Download

Intellectual Property

Patent Number Issue Date Type Country of Filing
9,683,663 Jun 20, 2017 Utility United States