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. 17, 1978
Filed:
Sep. 08, 1975
Applicant:
Inventor:
Joachim Reuland, Hamburg, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
73 452 ;
Abstract
Pneumatic test signals are generated indicative of the extent to which seal imperfections are present in the wrappers of rod-shaped articles, and the pneumatic test signals are converted into electrical test signals. A pneumatic comparison signal is generated and converted into an electrical comparison signal. Signals dependent upon the difference between the electrical comparison and test signals are derived from the electrical comparison and test signals. The determination of whether the wrappers are defective or non-defective includes comparing the derived signals against a reference value.