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:
Apr. 29, 1986
Filed:
Apr. 20, 1977
Applicant:
Inventor:
Eryk S Doerman, London, GB;
Assignee:
Molins PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
73 40 ; 73 38 ;
Abstract
Apparatus for testing the wrappers of cigarettes for leaks includes means for producing a series of first electrical signals indicative of the leakage flow through the wrappers of successive cigarettes, a comparator device for producing an ejection signal to eject each faulty cigarette, and an averaging device which responds to the running average level of the first signals and continuously varies the limit of the first signal which results in the production of an ejection signal by the comparator device, whereby that limit is raised when the running average of the first signals increases, and is lowered when the running average of the first signals falls.