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:
Oct. 03, 1995
Filed:
Aug. 24, 1992
Applicant:
Inventor:
Mark Horenstein, Newton, MA (US);
Assignee:
Trustees of Boston University, Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324557 ; 324559 ;
Abstract
A method and apparatus are described for detecting defects in a condom, protective glove or other similar product during manufacture. The product to be tested is situated on an electrically conductive mandrel, the shape of the mandrel corresponding to the shape of the product. Ions of air are generated and driven toward the mandrel. The flow of ions of air into the mandrel through any holes or tears in the product is detected by measuring the constant current flow through the mandrel. Thickness variations in the product are detected by measuring the duration of the transient current flow through the mandrel.