Geometrical instruments – Straight-line light ray type – Alignment device
Reexamination Certificate
2006-04-25
2006-04-25
Fulton, Christopher W. (Department: 2859)
Geometrical instruments
Straight-line light ray type
Alignment device
C033S291000
Reexamination Certificate
active
07032318
ABSTRACT:
A self-leveling laser alignment tool and method thereof which provides a laser beam in a substantially truly level or plumb orientation are disclosed. Magnetic attraction is used to compensate for leveling errors of an approximately or partially leveled pendulum platform that is suspended from a flexible support member having a predetermined material stiffness. The material stiffness of the suspension member is compensated by using magnets which pulls the pendulum platform into an orientation that is substantially truly level and plumb.
REFERENCES:
patent: 3771876 (1973-11-01), Ljungdahl et al.
patent: 4679937 (1987-07-01), Cain et al.
patent: 4700479 (1987-10-01), Saito et al.
patent: 4801791 (1989-01-01), Cain
patent: 4852265 (1989-08-01), Rando et al.
patent: 5257279 (1993-10-01), Dugan et al.
patent: 5272814 (1993-12-01), Key
patent: 5459932 (1995-10-01), Rando et al.
patent: 5541727 (1996-07-01), Rando et al.
patent: 5552886 (1996-09-01), Kitajima et al.
patent: 5619802 (1997-04-01), Rando et al.
patent: 5917587 (1999-06-01), Rando
patent: 6384913 (2002-05-01), Douglas et al.
patent: 6493952 (2002-12-01), Kousek et al.
patent: 6563646 (2003-05-01), Litvin
patent: 6722048 (2004-04-01), Huang et al.
patent: 2003/0029048 (2003-02-01), Huang et al.
patent: 835 810 (1960-05-01), None
patent: 03274410 (1991-12-01), None
Hayes Jim
McCarty Robin
Dinsmore & Shohl LLP
Fulton Christopher W.
Trimble Navigation Limited
LandOfFree
Self-leveling laser alignment tool and method thereof which... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self-leveling laser alignment tool and method thereof which..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-leveling laser alignment tool and method thereof which... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3582098