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US 2020/0049596 A1Published application
Method and apparatus for testing rolling resistance
AssigneeMadad Pty. Ltd.
InventorMorrison Just
Life of this patent
Estimating the term…
Abstract
A method and apparatus for testing rolling resistance of a mattress by rolling a cylindrical weight across at least a portion of the mattress and measuring torque of the cylindrical weight moving across the mattress. The apparatus is preferably automated and preferably continuously measures torque as the cylinder is continuously moved across the mattress at a constant speed.
Claims32
-30. (canceled)
A method of testing rolling resistance of a mattress, the method comprising the steps of:
- positioning a cylindrical weight on the mattress;
- moving the cylindrical weight across at least a portion of the mattress;
- and
- measuring torque of the cylindrical weight moving across the mattress.
1 more element
An apparatus for testing rolling resistance of a mattress, preferably carrying out the method as hereinbefore described, the apparatus comprising:
- a cylindrical weight;
- at least one actuator operatively coupled to the cylindrical weight, the actuator being configured to move the cylindrical weight across at least a portion of the mattress;
- and
- a force gauge configured to measure torque of the cylindrical weight moving across the mattress.
1 more element
Dependencies are inferred from the claim text.