Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1998-06-30
2000-03-14
Hofsass, Jeffery A.
Communications: electrical
Condition responsive indicating system
Specific condition
3406862, 340689, 3336616, 3336623, G08B 2100, G01C 906
Patent
active
060378743
ABSTRACT:
An electronic level with a laser inclination indicator. In one embodiment, the level includes a sensor that determines an inclination of the device relative to a null inclination. The sensor generates an inclination indication signal. A housing in which the sensor is mounted defines a longitudinal axis. A laser mounted on the housing generates a light beam parallel to the longitudinal axis. A laser controller receives the inclination indication signal from the sensor and selectively provides power to the laser in response to the inclination indication signal. In one embodiment, the level also includes a visual display on the housing operatively connected to the sensor and displaying the determined inclination. The visual display has a plurality of illuminated non-parallel and adjacent segments, each segment representing a predetermined sequential increment of inclination. Each segment is arranged at a different angle relative to the longitudinal axis of the housing. A particular number of segments are illuminated for each determined inclination. The laser beam spot provides a remote indicator of the inclination of the level for a user who is not in a position to view the visual display.
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Hofsass Jeffery A.
Klivans Norman P.
Stewart Daniel P.
Trieu Van T.
Zircon Corporation
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