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:
Nov. 21, 1989
Filed:
Jan. 20, 1988
Applicant:
Inventor:
Joseph S Heyman, Williamsburg, VA (US);
Assignee:
Measurement Resources Inc., Newport News, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128774 ; 128776 ; 3513 ; 3 72 ; 3215 ;
Abstract
A tooth stability monitor for assessing the rigidity of a tooth. A tooth probe 11 is provided for sinusoidally moving the tooth at a constant small amplitude. A displacement sensor 13 measures the resulting displacement of the tooth and a force sensor 14 measures the resulting force applied to the tooth. Feedback electronics 15 receives the two measurements and calculates the tooth modulus.