ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,862, issued on May 27.

"Spring loaded screen fabric retention device" was invented by Michael Heissenberg (Port St. Lucie, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spring loaded screen fabric retention device in the form of a motor and spring combination for a hurricane screen fabric. The combination overcomes the change in torque for use with a motor driven hurricane screen fabric system, allowing the motor to operate if there is a change in the initial torque which otherwise will interrupt motor operation. The device allows vertical deployment of screen fabric when the motor is idle, which prevents the base slat from lifting during hi...