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US 6,629,910 B1Granted
Adjustable weight exercise apparatus
OwnerMark A. Krullinventor
Life of this patent
Estimating the term…
Abstract
Weights are disposed on opposite sides of a base member, and selector rods are selectively moved into engagement with the desired number of weights on each side of the base member. The resulting adjustable resistance assembly may be used on dumbbells and/or weight stacks.
Claims20
A variable weight exercise system, comprising:
- a stationary weight holder;
- a plurality of weights stored on said weight holder with gaps defined between adjacent weights;
- a movable base having intermittently spaced supports configured and arranged to extend within respective gaps between respective weights as said base is moved toward said weight holder;
- and
- at least one selector rod mounted on said base and selectively movable into aligned openings in said supports and said weights, wherein a desired number of said weights may be secured to said base and removed from said weight holder.
2 more elements
A variable weight exercise dumbbell having a first weight and a second weight stored adjacent one another, and a base having an axially movable selector rod, the improvement comprising:
- an opening extending through said first weight, and an opening extending through said second weight, wherein each said opening is axially aligned with said selector rod;
- a shoulder protruding outward from at least one said weight and toward the other said weight at a location apart from each said opening;
- and
- a gap, having an axial dimension at least as great as said shoulder, defined between said opening in said first weight and said opening in said second weight, wherein said selector rod is selectively movable from a first position, removed from each said weight, to a second position, extending through said opening in said first weight and into said gap between said first weight and said second weight.
1 more element
Dependencies are inferred from the claim text.