ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,476, issued on Aug. 5.
"TR-343 isolation ring test fixture" was invented by Nathan Durcholz (Jasper, Ind.), Eric W. Schaefer (Huntingburg, Ind.) and Brooke Jones (Loogootee, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a test fixture for testing sonar transducer isolation rings. The fixture includes a stand, a pair of interchangeable isolation ring mounting bases, a mounting post, an actuator mounting bracket, a linear actuator, an actuator controller, a pair of weight alignment shafts, a weight, and an electrical test unit comprising a positive and a negative test lead. An Isolation Ring can be placed on the base for electrical an...