Patent ID: 11906486
Assignee: CHAPELGLADE LIMITED
Field: Measurement (Instruments)
Classification: CPC G  A | IPC A  G

Claim 0:
1. A system for simultaneously measuring indentation hardness properties, span properties, and resilience properties of a mattress, comprising:
a first indentation means and a second indentation means, each configured for being urged into the mattress with a predetermined force and causing an indentation in the mattress in a region of each of the first and second indention means and creating a curve on a surface of the mattress between the first indentation means and the second indentation means; and
laser means for projecting a laser line onto the curve on the surface of the mattress spanning between the first indentation means and the second indentation means and configured for mapping an amplitude, shape, and time-dependency of resultant deflection of the surface of the mattress between the first indentation means and the second indentation means;
wherein the span properties of the mattress are measured by determining a minimum distance away from the first indentation means or the second indentation means where there is no substantial indentation caused by either the first indentation means or the second indentation means; and
wherein the laser means is configured for measuring a maximum amplitude of the curve on the surface of the mattress between the first indentation means and the second indentation means; and
wherein the laser means is configured for capturing a succession of timed images as the first indentation means and the second indentation means are urged into the mattress.