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:
Aug. 31, 2010
Filed:
Apr. 11, 2006
John B. Paine, Iii, Midlothian, VA (US);
Zuyin Yang, Midlothian, VA (US);
Kent B. Koller, Chesterfield, VA (US);
Jay A. Fournier, Richmond, VA (US);
Charles E. Thomas, Jr., Richmond, VA (US);
Timothy S. Sherwood, Midlothian, VA (US);
Zhaohua Luan, Midlothian, VA (US);
Shuzhong Zhuang, Richmond, VA (US);
Jose G. Nepomuceno, Beaverdam, VA (US);
Diane L. Gee, Richmond, VA (US);
Georgios D. Karles, Richmond, VA (US);
John B. Paine, III, Midlothian, VA (US);
Zuyin Yang, Midlothian, VA (US);
Kent B. Koller, Chesterfield, VA (US);
Jay A. Fournier, Richmond, VA (US);
Charles E. Thomas, Jr., Richmond, VA (US);
Timothy S. Sherwood, Midlothian, VA (US);
Zhaohua Luan, Midlothian, VA (US);
Shuzhong Zhuang, Richmond, VA (US);
Jose G. Nepomuceno, Beaverdam, VA (US);
Diane L. Gee, Richmond, VA (US);
Georgios D. Karles, Richmond, VA (US);
Philip Morris USA Inc., Richmond, VA (US);
Abstract
A smoking article such as a cigarette comprises a tobacco rod and a filter component having a cavity filled with spherical beaded carbon. As mainstream tobacco smoke is drawn through the filter component, targeted gas phase smoke constituents are removed as the smoke passes through the carbon. During the filter manufacturing process the spherical beaded carbon flows like a liquid and substantially completely fills the cavity. Point-to-point contact between the spherical beads together with substantially complete filling of the cavity produces minimal channeling of ambulatory gas phase as well as maximum contact between the gas phase and the carbon surface of the spherical beads during smoking.