The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2010
Filed:
Jun. 27, 2008
Applicant:
Richard Macmanus, Narragansett, RI (US);
Inventor:
Richard MacManus, Narragansett, RI (US);
Assignee:
Hexagon Metrology, Inc., North Kingstown, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 19/00 (2006.01); G01B 5/004 (2006.01);
U.S. Cl.
CPC ...
Abstract
A coordinate measuring machine compensates for hysteresis error caused by friction at the non-driven end of the bridge. The bridge may have a single drive and/or a single scale. The methods, systems, and apparatuses compensate for errors in the x-direction and/or errors in the y-direction caused by rotation of the bridge. Some embodiments compensate for hysteresis errors in the x-direction caused by a vertically-movable ram.