ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,722, issued on July 8, was assigned to ClearGuard IPCo Pty Ltd (Jandakot, Australia).
"Tapping point clearing apparatus" was invented by Hans Ernst Sauer (Jandakot, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A clearing head 10 includes annular scraper edge (12) and rows of openings (14, 16). A clearing tool (100) has a one-piece combined shaft (24) and clearing head (10). Wiper ring (49) includes inner first material 49a around an opening (49c) for the shaft (24). The first material may have molybdenum/molybdenum disulphide. A resilient second material 49b is provided around the first material. The resilient second material is or includ...