Patent ID: 8025613

Claim:
An adjustable dumbbell comprising: a plurality of weight members each including an opening formed therein, a handle including two end portions, and including a bore formed therein, a shaft rotatably engaged in said bore of said handle and including two end portions extended out of said handle, a carrier attached to each end portion of said shaft, and including an inner housing attached to said end portion of said shaft and rotated in concert with said shaft, and an outer housing and at least one middle housing attached to said inner housing and spaced from each other for forming at least two gaps between said inner housing and said outer housing and said at least one middle housing and for selectively receiving and engaging with said weight members, and said inner housing and said at least one middle housing each including a spring-biased projection extendible into said gaps that are formed between said inner housing and said outer housing and said at least one middle housing for selectively engaging with said weight members and for latching the selected weight members to said handle and said shaft and said carrier, and a control device rotatably engaged onto said shaft and coupled to said handle for engaging with said spring-biased projections and for selectively actuating said spring-biased projections to engage with said weight members and to latch the selected weight members to said handle and said shaft and said carrier.