Geometrical instruments – Distance measuring – By flexible tape
Reexamination Certificate
2008-11-19
2010-06-08
Bennett, G. Bradley (Department: 2841)
Geometrical instruments
Distance measuring
By flexible tape
C033S679100
Reexamination Certificate
active
07730631
ABSTRACT:
A tape measure has a first scale on one edge of the blade and a second scale on the other edge blade where the second scale is marked in units of length which are equal to the units of the first scale multiplied by the square root of 2. A method to check a right angle measures from a corner to a distal end of a first line using the units of the first scale, measures along a second line an equal length in the first units from the corner and marking a point, by measuring from the distal end to the point using the second scale and by adjusting an angle between the first and second lines at the corner until the distance between the distal end and the point is equal to the length of the first line when measured on the second scale.
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Ade & Company Inc.
Battison Adrian D.
Bennett G. Bradley
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