Back to results
US 8,708,876 B2Granted
Resistance chair with wheels
OwnerJohann B. Verheeminventor
Life of this patent
Estimating the term…
Abstract
A resistance chair with wheels assists users with performing correct abdominal crunches by guiding the user's effort. The resistance chair includes a seat operably coupled to at least one hinged arm with back support that extends to support the user's back and assist in the crunch recovery following the crunch extension.
Claims3
A resistance chair comprising:
- a stationary seat;
- an axle rotatable relative to the stationary seat;
- at least one arm connected to the axle;
- at least one back support secured to the at least one arm and supporting the back of a user sitting on the stationary seat;
- and
- at least one resistance element operably coupled to the at least one arm and resisting rotation of the at least one arm away from the stationary seat;
- wherein the at least one resistance element urges the at least one arm to an upright start position and assists a user performing an abdominal crunch to return to an upright abdominal crunch position from a fully extended abdominal crunch position;
- and
- wherein the at least one resistance element resists rotation of the at least one arm away from the upright start position and resists against the user moving from the upright abdominal crunch position to the fully extended abdominal crunch position.
6 more elements
Dependencies are inferred from the claim text.