US Patent Issued to Personality Gym on July 7 for "Adjustable weight lifting device" (Swedish Inventor)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,673,230, issued on July 7, was assigned to Personality Gym AB (Huskvarna, Sweden).

"Adjustable weight lifting device" was invented by Tomas Svenberg (Huskvarna, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "An adjustable weight lifting device (21) includes a tube (31), a pin (33) movably disposed inside the tube (31), the pin (33) comprising an external thread (35), and one or more driving knobs (51) extending radially inward relative to an inner wall of the tube (31) and engaging with the external thread. The external thread comprises at least one portion having a first helix angle and at least one portion having a second helix angle, the second...