Apparatus for use in construction machines for detecting laser b

Details Apparatus for use in construction machines for detecting laser b Apparatus for use in construction machines for detecting laser b

1997-03-19

1999-06-29

Font, Frank G.

Optics: measuring and testing

Fiducial instruments

364423098, G01C 902, G06F 1514

Patent

active

059175931

ABSTRACT:
In the displaying apparatus for a construction machine with a blade having a level sensor disposed above the blade and designed such that laser beams serving as a datum is detected by the level sensor and the information based on the detected datum is displayed on a remote display, a light emitting device for signal transmission is provided for the level sensor and a light sensing device corresponding to the light emitting device is provided for the remote display, whereby the information is transmitted by means of the lightwave signal from the light emitting device to the light sensing device.

REFERENCES:
patent: 4273196 (1981-06-01), Etsusaki et al.
patent: 4299290 (1981-11-01), Nunes, Jr.
patent: 4413684 (1983-11-01), Duncklee
patent: 4537259 (1985-08-01), Funabashi et al.
patent: 4807131 (1989-02-01), Clegg
patent: 4820041 (1989-04-01), Davidson et al.
patent: 5375663 (1994-12-01), Teach

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