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US 8,850,898 B2Granted
Test fixture for strip samples
AssigneeADC Telecommunications, Inc.
InventorDavid J. Johnsen
Life of this patent
Estimating the term…
Abstract
A test fixture for applying a prescribed displacement to a material includes a first and a second portion, a first and a second adjustable pin, and an actuator. The first portion includes a first pin that to engages the material at a first location on the material. A second pin is engages the material at a second location on the material. A third pin engages the material at a third location on the material. The first adjustable pin holds the material against the second pin at the second location. The second adjustable pin holds the material against the third pin at the third location. The actuator is adapted to configure a relative position between the first pin and the second and third pins.
Claims37
A test fixture for applying a prescribed displacement to a material, the test fixture comprising:
- a first portion including a first material engaging feature and a first support, the first material engaging feature having a supported end mounted to the first support, the first material engaging feature having a free end spaced from the supported end of the first material engaging feature, the first material engaging feature adapted to engage the material between the supported end and the free end of the first material engaging feature at a first location on the material;
- a second portion including a second material engaging feature, a third material engaging feature, and a second support, the second and the third material engaging features each having a supported end mounted to the second support, the second and the third material engaging features spaced from each other by a distance, the second and the third material engaging features each having a free end spaced from the supported ends of the second and the third material engaging features, the second material engaging feature adapted to engage the material between the supported end and the free end of the second material engaging feature at a second location on the material, and the third material engaging feature adapted to engage the material between the supported end and the free end of the third material engaging feature at a third location on the material;
- and
- an actuator operably connected between the first support of the first portion and the second support of the second portion, the actuator adapted to configure a relative position between the first material engaging feature and the second and third material engaging features.
1 more element
A test fixture for simultaneously applying prescribed displacements to a plurality of test specimens, the test fixture comprising:
- a first portion including a plurality of material engaging features, the material engaging features of the first portion each adapted to engage one of the test specimens at a first location on the test specimen;
- a second portion including a plurality of pairs of material engaging features, the pairs of material engaging features of the second portion each adapted to engage one of the test specimens at a second location and a third location on the test specimen, one of the pair of material engaging features adapted to engage the test specimens at the second locations, and another of the pair of material engaging features adapted to engage the test specimens at the third locations;
- and
- an actuator operably connected between the first portion and the second portion, the actuator adapted to configure a relative position between the material engaging features of the first portion and the pairs of material engaging features of the second portion;
- wherein the material engaging features each include a pin;
- and
- wherein the pins are cantilevered and include a free end.
4 more elements
A test fixture for applying a prescribed displacement to a material, the test fixture comprising:
- a first portion including a first pin, the first pin adapted to engage the material at a first location on the material;
- a second portion including a second pin and a third pin, the second and the third pins spaced from each other by a distance, the second pin adapted to engage the material at a second location on the material, and the third pin adapted to engage the material at a third location on the material;
- a first adjustable material support feature adapted to hold the material against the second pin at the second location on the material;
- a second adjustable material support feature adapted to hold the material against the third pin at the third location on the material;
- and
- a common actuator operably connected between the first portion and the second portion, the common actuator adapted to configure a relative position between the first pin and the second and third pins.
3 more elements
A test fixture for applying a prescribed displacement to a material, the test fixture comprising:
- a first portion including a first pin, the first pin adapted to engage the material at a first location on the material;
- a second portion including a second pin and a third pin, the second and the third pins spaced from each other by a distance, the second pin adapted to engage the material at a second location on the material, and the third pin adapted to engage the material at a third location on the material;
- a first adjustable material support feature adapted to hold the material against the second pin at the second location on the material, the first adjustable material support feature including a first adjustable pin;
- a second adjustable material support feature adapted to hold the material against the third pin at the third location on the material, the second adjustable material support feature including a second adjustable pin;
- and
- an actuator operably connected between the first portion and the second portion, the actuator adapted to configure a relative position between the first pin and the second and third pins;
- wherein the first and the second adjustable pins include a bore that receives a plunger and the plunger is adapted to hold the adjustable pins against the material and thereby hold the material against the second and the third pins, respectively.
4 more elements
A method for testing a strip of material, the method comprising:
- placing the strip of material adjacent a pair of pins;
- positioning a pair of holding pins adjacent the material opposite the pair of pins thereby holding the strip of material adjacent the pair of pins;
- actuating a third pin relative to the pair of pins thereby deforming the material
- wherein the pair of pins and the third pin are all cantilevered from a base of a test fixture.
1 more element
Dependencies are inferred from the claim text.