US Patent 11179594 Adjustable dumbbell

An adjustable dumbbell device includes a handle bar, a housing attached to one end of the handle bar, one or more weight elements engageable into the housing, and a catch is slidably received and engaged in the housing and extendible out of the housing to engage with either the weight elements and to anchor either of the weight elements to the housing and the handle bar and for micro adjusting the weight of the dumbbell assembly. The housing includes a guide channel for slidably receiving the catch. The housing includes a chamber communicating with the guide channel of the housing for receiving and engaging with the weight elements.