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:
Mar. 05, 1991
Filed:
Dec. 04, 1989
Applicant:
Inventor:
Aaron Shafir, Tel Aviv, IL;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
433 72 ; 128776 ; 364560 ; 33503 ; 33513 ;
Abstract
Apparatus for digitizing the contour of a three-dimensional surface of an object includes a handle, a probe carried by the handle and movable along three independent axes to contact sample points on the three-dimensional surface, and a positional sensor for sensing the position of the handle along the three axes and for outputting positional values. The probe includes an arm deflectable during the movement of the probe, which deflections are sensed by a sensor. A digital processor processes the positional values only when one of the deflection sensors senses a deflection in its respective arm above a predetermined threshold value, and modifies the positional values by the deflection values.