Patent ID: 9427618
Filing Date: 2016-08-30
CPC Classification: A63B

Claim Text:
1. An apparatus comprising: a weightlifting bar having a longitudinal direction; a set of cams each having an opening and a weight loading bar extending therefrom and being substantially perpendicular to the set of cams, wherein each cam of the set of cams is suspended from the weightlifting bar; a slidable linear bearing for engaging with the weightlifting bar, said linear bearing being fitted in the opening of each of the set of cams and being capable of sliding along the longitudinal direction of the weightlifting bar; a set of shaft collars for securing the linear bearing in a position on the weightlifting bar between the set of shaft collars, and two handles disposed annularly on the weightlifting bar capable of reciprocally sliding along the longitudinal direction of the weightlifting bar, each of the handles being capable during use of sliding toward or away from an adjacent cam; wherein each of the set of cams further comprises a base connecting point for attaching a spring thereto.