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US 11,579,048 B2Granted
Method and apparatus for testing roll together
AssigneeMadad Pty. Ltd.
InventorMorrison Just
Life of this patent
Estimating the term…
Abstract
A method and apparatus for testing roll together of a mattress using two weights, preferably weighted cylinders, and moving one of the weights towards the other while measuring change in distance between the weights and changes in angle of the stationary weight.
Claims22
A method of testing roll together of a mattress, the method comprising the steps of:
- positioning a first weight and a second weight on the mattress a measured distance apart from each other;
- moving the second weight relative to the first weight so that it is a different measured distance apart from the first weight;
- and
- determining roll together by comparing any change in angle of the first weight in response to the second weight being moved the different measured distance apart from the first weight.
1 more element
An apparatus for testing roll together of a mattress, the apparatus comprising:
- a first weighted cylinder;
- a second weighted cylinder;
- an inclinometer mounted to the first weighted cylinder configured to determine roll together by comparing any change in angle of the first weighted cylinder in response to the second weighted cylinder being moved;
- and
- a displacement measurement system to measure displacement of the second weighted cylinder relative to the first weighted cylinder.
2 more elements
Dependencies are inferred from the claim text.