Dumbbell assembly

Details Dumbbell assembly Dumbbell assembly

2010-06-08

2011-10-11

Donnelly, Jerome W (Department: 3764)

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing weight resistance

C482S107000

Reexamination Certificate

active

08033964

ABSTRACT:
A dumbbell assembly includes a tube, a rod rotatably received in the tube, and two rotary units respectively connected to two ends of the rod. Each rotary unit has a wing to which multiple weight members are connected. The rod is rotated relative to the tube and the wings together with the weight members are rotated to generate centrifugal forces which apply to the user's muscles.

REFERENCES:
patent: 4252316 (1981-02-01), Price
patent: 6022300 (2000-02-01), Hightower
patent: 6663542 (2003-12-01), Trabbic
patent: 7056268 (2006-06-01), Emick
patent: 2010/0160124 (2010-06-01), Berenshteyn

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