| 20110021327 | LOCKNUT SECURED DUMBBELL ASSEMBLY - An apparatus and method are provided for assembling fixed-weight dumbbells and barbells. The apparatus and method use locknuts to secure weight plates to the fixed-weight dumbbells and barbells. The locknuts are permanently (or semi-permanently) attached or affixed to opposing ends of the bars or handles of the fixed-weight dumbbells and barbells. The attaching of the locknuts to the bar or handle may be accomplished by any known permanent (or semi-permanent) fastening technique, including welding, soldering, fusing, braising, bonding, and the like. Bolts or other threaded means are then screwed through openings in the weight plates into the locknuts to secure the weight plates to the bar or handle. The locking mechanisms of the locknuts thereafter prevent the bolts or other threaded means from loosening and backing out over time, even under severe shock and vibration conditions. | 01-27-2011 |
