Patent ID: 9683826
Date: 2017-06-20
CPC Classifications: E04F,G01B

Claim:
1. A measurement device comprising: a first measurement element including a base surface comprising a length and a width, an upper surface opposite from the base surface and comprising a length and a width, and an end wall surface extending from the base surface to the upper surface, the upper surface of the first measurement element spaced apart from the base surface of the first measurement element by a first height, the upper surface of the first measurement element and the end wall surface of the first measurement element lying in separate planes and intersecting each other, the length of the upper surface of the first measurement element being substantially equal to the length of the base surface of the first measurement element, and the width of the upper surface of the first measurement element being substantially equal to the width of the base surface of the first measurement element; a second measurement element including a base surface comprising a length and a width, an upper surface opposite from the base surface and comprising a length and a width, and an end wall surface extending from the base surface to the upper surface, the upper surface of the second measurement element spaced apart from the base surface of the second measurement element by a second height, the upper surface of the second measurement element and the end wall surface of the second measurement element lying in separate planes and intersecting each other, the length of the upper surface of the second measurement element being substantially equal to the length of the base surface of the second measurement element, and the width of the upper surface of the second measurement element being substantially equal to the width of the base surface of the second measurement element, the second height greater than the first height and the second measurement element attached to the first measurement element; a third measurement element including a base surface comprising a length and a width and an upper surface opposite from the base surface and comprising a length and a width, the upper surface of the third measurement element spaced apart from the base surface of the third measurement element by a third height, the length of the upper surface of the third measurement element being substantially equal to the length of the base surface of the third measurement element, and the width of the upper surface of the third measurement element being substantially equal to the width of the base surface of the third measurement element; and a fourth measurement element including a base surface comprising a length and a width and an upper surface opposite from the base surface and comprising a length and a width, the upper surface of the fourth measurement element spaced apart from the base surface of the fourth measurement element by a fourth height, the third height greater than the second height and the third measurement element attached to the second measurement element, and the fourth height greater than the third height and the fourth measurement element attached to the third measurement element, the length of the upper surface of the fourth measurement element being substantially equal to the length of the base surface of the fourth measurement element, and the width of the upper surface of the fourth measurement element being substantially equal to the width of the base surface of the fourth measurement element; wherein the base surfaces of the first measurement element, the second measurement element, the third measurement element, and the fourth measurement element together form a common flat base surface; and wherein the base surface and the upper surface of each of the first measurement element, the second measurement element, the third measurement element, and the fourth measurement element are substantially flat.