Device for and method of determining cut resistance of a material
AssigneeS.C. Johnson Home Storage, Inc.
InventorsBethanne L. Valentine, Lawrence C. Stanos, Bryan L. Ackerman
Life of this patent
Estimating the term…
Abstract
A device implements a method of determining a cut resistance of a sample. The device includes a blade wherein the blade and the sample are relatively movable and a first apparatus that transfers energy to at least one of the sample and the blade to cause relative movement thereof in a direction parallel to a surface of the sample such that the blade contacts and cuts the sample until the imparted energy is expended and relative movement is terminated. A second apparatus measures a parameter of the relative movement to obtain an indication of the cut resistance of the sample.
Claims33
A device for determining a cut resistance of a sample, comprising:
- a blade wherein the blade and the sample are relatively movable along a linear path;
- a first apparatus that transfers energy to at least one of the sample and the blade to cause relative movement thereof in a direction parallel to a surface of the sample such that the blade contacts and cuts the sample until the imparted energy is expended and relative movement is terminated;
- and
- a second apparatus that measures a parameter of the relative movement to obtain an indication of the cut resistance of the sample.
A device for determining a cut resistance of a sample, comprising:
- a blade wherein the blade and the sample are relatively movable;
- a first apparatus that transfers energy to at least one of the sample and the blade to cause relative movement thereof in a direction parallel to a surface of the sample, wherein the relative movement occurs along a substantially vertical path such that the blade contacts and cuts the sample until the imparted energy is expended and relative movement is terminated;
- a second apparatus that measures a parameter of the relative movement to obtain an indication of the cut resistance of the sample;
- and
- a sample holder wherein the sample is attached to the sample holder.
A device for determining a cut resistance of a sample, comprising:
- a blade wherein the blade and the sample are relatively movable;
- a first apparatus that transfers energy to at least one of the sample and the blade to cause relative movement thereof in a direction parallel to a surface of the sample, said first apparatus guiding the sample along a substantially vertical path such that the blade contacts and cuts the sample until the imparted energy is expended and relative movement is terminated;
- and
- a second apparatus that measures a parameter of the relative movement to obtain an indication of the cut resistance of the sample.
A device for determining a cut resistance of a sample, comprising:
- a blade wherein the blade and the sample are relatively movable;
- a first apparatus that transfers energy to at least one of the sample and the blade to cause relative movement thereof in a direction parallel to a surface of the sample, said first apparatus guiding the sample along a substantially vertical linear path such that the blade contacts and cuts the sample until the imparted energy is expended and relative movement is terminated;
- and
- a second apparatus that measures a parameter of the relative movement to obtain an indication of the cut resistance of the sample.
A device for determining cut resistance of a material, comprising
- a sample holder having a known mass wherein the sample holder is adapted to receive a sample of the material;
- a blade;
- guide apparatus for effecting relative movement of the sample holder and the blade holder under the influence of gravity along a path from a particular initial position wherein the material sample is out of contact with the blade and a final position wherein the material sample is in stationary contact with the blade thereby forming a cut having a cut length in the sample;
- and
- measurement apparatus for indicating a length of the path, the path length and the cut length being used to obtain an indication of cut resistance.
A method of determining a cut resistance of a material, the method comprising the steps of:
- providing a sample of the material and a blade wherein the sample and the blade are relatively movable along a linear path;
- imparting energy to at least one of the sample and the blade to cause relative movement thereof in a direction parallel to a surface of the sample such that the blade contacts and cuts the sample until the imparted energy is expended and relative movement is terminated;
- and
- measuring a parameter of the relative movement to obtain an indication of the cut resistance of the sample.
A method of determining a cut resistance of a material, the method comprising the steps of:
- providing a sample of the material and a blade wherein the sample and the blade are relatively movable;
- providing a sample holder wherein the sample is attached to the sample holder;
- imparting energy to at least one of the sample and the blade to cause relative movement thereof in a direction parallel to a surface of the sample, wherein the relative movement occurs along a substantially vertical path, such that the blade contacts and cuts the sample until the imparted energy is expended and relative movement is terminated;
- and
- measuring a parameter of the relative movement to obtain an indication of the cut resistance of the sample.
A method of determining a cut resistance of a material, the method comprising the steps of:
- providing a movable sample holder having a known mass wherein the sample holder is adapted to receive a sample of the material;
- providing a stationary blade holder and a blade mounted to the blade holder;
- positioning the movable sample holder at a predetermined height above the blade;
- releasing the movable sample holder to cause the sample holder to move under the influence of gravity until the sample contacts the blade and is cut thereby for a cut distance until movement of the sample holder is terminated;
- and
- using the cut distance and the predetermined height to obtain an indication of the cut resistance of the sample.
A method of determining cut resistance inhomogeneity of a material, the method including the steps of:
- providing a sample of the material and a blade wherein the sample and the blade are relatively movable;
- imparting energy to at least one of the sample and the blade to cause relative movement thereof in a direction parallel to a surface of the sample such that the blade contacts and cuts the sample until the imparted energy is expended and relative movement is terminated;
- and
- measuring the position of the at least one of the sample and the blade to obtain an indication of the local inhomogeneity of cut resistance of the sample.
Dependencies are inferred from the claim text.