Light leveling device having remote control

Geometrical instruments – Straight-line light ray type – Level

Reexamination Certificate

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Details

C033S279000, C033S281000, C033S286000

Reexamination Certificate

active

06922901

ABSTRACT:
A light leveling device includes a stationary light instrument received in a housing, and a rotatable light instrument rotatably attached to the housing, to allow the rotatable light instrument to be rotated and adjusted relative to the housing and the stationary light instrument. A carrier is rotatably secured to the housing to support the rotatable light instrument, and a motor may be coupled to the carrier to rotate and adjust the carrier and the rotatable light instrument relative to the housing automatically. A remote control device may further be used to remotely control the motor.

REFERENCES:
patent: 5367779 (1994-11-01), Lee
patent: 5588216 (1996-12-01), Rank et al.
patent: 5680208 (1997-10-01), Butler et al.
patent: 5713135 (1998-02-01), Acopulos
patent: 5790248 (1998-08-01), Ammann
patent: 5864956 (1999-02-01), Dong
patent: 6065217 (2000-05-01), Dong
patent: 6427347 (2002-08-01), Butler, Sr.
patent: 6430823 (2002-08-01), Seki
patent: 2003/0123153 (2003-07-01), Ohtomo et al.

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