Optics: measuring and testing – Dimension – Width or diameter
Reexamination Certificate
2011-03-29
2011-03-29
Pham, Hoa Q (Department: 2886)
Optics: measuring and testing
Dimension
Width or diameter
C033S503000
Reexamination Certificate
active
07916312
ABSTRACT:
A measurement arrangement has a rotation axis around a first end of an extended member having a first joint thereat, and a second joint at the opposing end. An equipment for recording measured points is connected to the second joint. The joints are connected through a cord or wire. The equipment is arranged to rotate through a pre-determined angle when the member is turned around its rotation axis. An angle sensor records the rotation of the equipment relative to the member. The cord or wire rotates the equipment through an angle corresponding to the angle that the member has rotated around its rotation axis. The equipment and the member rotate in opposite directions, and the angles of rotation are recorded when the equipment detects the limiting surface of the object on both sides of the diameter to be measured. A processor calculates the diameter based on the angles of rotation.
REFERENCES:
patent: 2005/0005467 (2005-01-01), Hannel
patent: 2005/0028398 (2005-02-01), Jacobsen
patent: 2010/0250178 (2010-09-01), Noda et al.
patent: 42 41 335 (1994-02-01), None
patent: 101 12 222 (2002-09-01), None
patent: 90/04752 (1990-05-01), None
International Search Report dated May 1, 2008, from corresponding PCT application.
Haglof Sweden AB
Pham Hoa Q
Young & Thompson
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