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:
Jul. 21, 1981
Filed:
Aug. 29, 1979
Reginald C Bolt, London, GB;
Molins Limited, London, GB;
Abstract
Cigarette testing system for cigarettes having perforations 6 in the filter in which the cigarette 2 is surrounded by a suction chamber 8 and the tobacco end is connected to a source of pressurized air. The pressure at the tobacco end is regulated in accordance with the average signal from a transducer 10 at the filter end so as to maintain zero average pressure at the filter end, i.e. so that the air flow into the cigarette from the tobacco end exactly balances the outflow through the perforations. The tobacco end pressure is monitored as a measure of the average dilution level of the cigarettes and the deviations from zero pressure at the filter end can be used as individual cigarette test signals.