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:
Aug. 05, 1980
Filed:
Jun. 08, 1978
Applicant:
Inventor:
Elie S Nuwayser, Wellesley, MA (US);
Assignee:
Abcor, Inc., Wilmington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128734 ; 128776 ; 128787 ; 128803 ; 433 32 ;
Abstract
A dental-caries detector for the determination of dental caries by measurement of the electrical conductivity or other electrical property of a tooth, which dental-caries detector comprises: an electrically conductive, caries-detector probe having a probe tip which is adapted to be placed on a wet, electrically conductive area of the tooth; a dry air mechanism for providing a surrounding curtain of drying air about the probe tip to provide a dry, electrically nonconductive area about the probe tip; and a shield surrounding the probe tip to seal the probe tip from the dry area.