Leveling, plumbing, and angular calibration instrument with...

Details Leveling, plumbing, and angular calibration instrument with... Leveling, plumbing, and angular calibration instrument with...

2008-02-13

2009-06-09

Guadalupe-McCall, Yaritza (Department: 2841)

Geometrical instruments

Straight-line light ray type

Alignment device

C033S391000, C033S402000

Reexamination Certificate

active

07543391

ABSTRACT:
In a leveling, plumbing, and angular calibration instrument a swinging suspended vertical body (4) is provided, which carries groups (5, 6) of light elements and/or lenses and optionally a beam splitter and/or beam converging element provided to create and emit laser light. A clamping element (7) is allocated to the vertical body (4) to block a swinging motion in an exactly central position, if necessary, which is formed from two clamping shoes (8, 9) arranged opposite each other, which can be synchronously displaced in reference to the clamping section (10) of the vertical body (4).

REFERENCES:
patent: 6306126 (2001-10-01), Moctezuma
patent: 6964106 (2005-11-01), Sergyeyenko et al.
patent: 7121012 (2006-10-01), Voecks
patent: 7155835 (2007-01-01), Hayes et al.
patent: 2003/0000094 (2003-01-01), Tamamura
patent: 2003/0029049 (2003-02-01), Huang et al.
patent: 2004/0172836 (2004-09-01), Ng et al.
patent: 2006/0080849 (2006-04-01), McCarty
patent: 2008/0028624 (2008-02-01), Chen
patent: 19842798 (2000-05-01), None

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