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. 25, 1995
Filed:
Jul. 27, 1993
Thomas L Gentry, Winston-Salem, NC (US);
Russell D Barnes, Belews Creek, NC (US);
Richard L Blakley, Pfafftown, NC (US);
Charles R Ashcraft, Winston-Salem, NC (US);
Juanilla M Gwyn, Winston-Salem, NC (US);
James W Pryor, Winston-Salem, NC (US);
Henry T Ridings, Lewisville, NC (US);
Milly M Wong, Winston-Salem, NC (US);
R. J. Reynolds Tobacco Company, Winston-Salem, NC (US);
Abstract
A smoking article having a controlled yield of wet particulate matter and a method of making a smoking article with predetermined total and per puff yields of wet particulate matter. The smoking article has a tobacco rod connected to an air ventilated compound filter having two abutted filter segments, a rod end segment with a passage therethrough and a mouth end segment. The pressure drop of the abutment interface between the segments is selected to be in a range of from about 10 mm to about 100 mm water gauge. The total pressure drop of the filter including the interface and the amount of air dilution can be selected to provide a smoking article with a level per puff yield or a decreasing per puff yield.