ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,482,619, issued on Nov. 25, was assigned to Hydra-Electric Co. (Burbank, Calif.).
"Two wire pressure indicating switch with all electronic architecture with millivolt operating supply" was invented by Robert Andrew Guziak (West Mifflin, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems, devices, and methods for a two wire detection circuit powered system comprising: an electronic switch circuit configured to sense a pressure level above or below a predetermined value and indicate an open or closed switch condition, where the electronic switch circuit provides a contact resistance voltage of about 20 mV in the closed switch condition; and an ene...