| WARF: P04212US |  |
| Device and Method for Alerting a Runner When a New Pair of Shoes is Needed |
| INVENTORS | • | David Beebe, Brian Schwartz, Steve Pauls, Timothy Rand, Brant Kochsiek |
The Wisconsin Alumni Research Foundation (WARF) is seeking commercial partners interested in developing a device and method that provide a visual alert when running shoes are worn out.
OVERVIEW
The life of a pair of running shoes—unlike their casual counterparts—is determined largely by the amount of cushion they provide. As they are used, the foam midsole gradually is compacted. The midsole is made of a synthetic polymer with elastic properties to provide cushion. When this cushioning body has worn down, runners are subject to more injuries, which can become chronic. The average pair of running shoes last between 300 and 500 miles, but their life varies based on the runner’s style and weight. The only way to determine whether a pair of shoes is worn out is to keep a mileage log or to guess based on feel.
THE INVENTION
UW-Madison researchers have developed a method and device to quantitatively measure wear on the midsole of a running shoe. Two impact sensors are placed in the heel of the shoe; one at the base, between the midsole and outsole, and one at the top, between the midsole and the upper. When the runner’s foot strikes the ground, the lower sensor receives the full force of the impact, while the force on the upper sensor is reduced by the cushioning midsole. As the midsole wears down, the difference in force measured by the two sensors decreases. A control circuit measures the difference, and when it falls below a predetermined threshold, the circuit activates a visual alert in the form of an LED.
APPLICATIONS
- Running shoes
KEY BENEFITS
- Provides visual reminder when it is time to purchase new running shoes
- Helps reduce and prevent chronic running injuries
- Sensors may be placed in other areas of a shoe, to determine wear in areas such as the ball (for toe-runners) and inside edge (for overpronators).
- Inexpensive and easy to use
- May be easily incorporated into a standard running shoe
- Visual reminder may be substituted with auditory alert
ADDITIONAL INFORMATION
For More Information About the Inventors
Intellectual Property Status
Tech Fields
Miscellaneous - Recreation
CONTACT INFORMATION
For current licensing status, please contact our team at
licensing@warf.org
or phone 608.262.4924. (Clicking this link will open a contact form in a popup window. If you have problems viewing the form, try disabling your popup blocker software.)
Since its founding in 1925 as the patenting and licensing organization for the University of Wisconsin-Madison, WARF has been working with business and industry to transform university research into products that benefit society. WARF intellectual property managers and licensing staff members are leaders in the field of university-based technology transfer. They are familiar with the intricacies of patenting, have worked with researchers in relevant disciplines, understand industries and markets, and have negotiated innovative licensing strategies to meet the individual needs of business clients.
