| US 7,506,449 B2 | ||
| Measurement device | ||
| Douglas Allen Howard, Reston, Va. (US) | ||
| Assigned to George Mason Intellectual Properties, Inc., Fairfax, Va. (US) | ||
| Filed on Jul. 31, 2006, as Appl. No. 11/461,028. | ||
| Claims priority of provisional application 60/706040, filed on Aug. 08, 2005. | ||
| Prior Publication US 2007/0028468 A1, Feb. 08, 2007 | ||
| Int. Cl. G01C 17/34 (2006.01) | ||
| U.S. Cl. 33—268 [33/270; 33/1 SA] | 20 Claims |
| 1. A measurement device, comprising:
a) a horizontal track;
b) at least one self-leveling foot coupled to the horizontal track;
c) a hemispherical track coupled to the horizontal track;
d) a movable sensor unit coupled to the hemispherical track; and
e) a connector disposed on the hemispherical track.
|