Signal Strip And System For Determining A Movement Status Of A Moving Body
The invention relates to an oblong signal strip (), comprising signalling sections () along the longitudinal extent thereof, each comprising at least two different pieces of information, referring to an optical property, a magnetic prope...
F Dudde，W Meissner，G Thumm - US
Electronic level with stereo sound indication
An electronic level includes two loudspeakers, one located at each end of the level housing (beam) and controlled in a stereo-like manner. Thus the volume balance between the two loudspeakers is controlled by the angular inclination of t...
GR Schultheis，CE Heger - 《Journal of the Acoustical Society of America》
Electronic level indicator
An electronic level indicator, having a housing including at least one planar surface, at least one gravity responsive sensor mounted on the housing, the sensor constituting at least a part of two branches of an electronic bridge circuit...
U Cagan，L Diamant，G Goodman - US
Electronic slope detector
An electronic bubble level display is provided for determining surface normality when coupled with three sensors (18, 20, 22) sensing distance to the surfa...
Electronic level with audible and visual indicators
An electronic bubble level display is provided for determining surface normality when coupled with three sensors (18, 20, 22) sensing distance to the surfa...
Polygrid
A simple, general-purpose measuring and locating device to assist in laying out construction projects is a full-scale sheet of dimensionally stable material, preferably polyethylene of suitable thickness, on which markings, preferably in...
Wade R. Bradley - US
Compass
A compass, comprising a head portion and first and second leg members. Each of the first and second leg members include a first end and a second end, the f...
Mark A. McLean，Victor J. Burmeister，S Petersen，... - US
Apparatus for placing furring straps
A device of exact standard dimensions for quickly and efficiently placing furring straps, comprising an elongated body having an abutment shoulder on one end and a cradle on a second end with a handle long enough to enable reaching ceili...
L Collins
V-level
The V-Level will give an accurate and an exact level reading, rather than having to read an ordinary level twice, to obtain a level or plumb of two perpendicular planes, at a ninety degree angle to each other. You can now have six bubble...
Robert Michael McRae - US
Measuring and leveling device
A measuring and leveling tool has a distance encoder which is movable along a surface. The tool determines a distance traveled by the measuring device. The distance traveled is displayed in a digital display. The tool includes a laser le...
Marshall James D.，H Robert - US
