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:
Jan. 22, 1980
Filed:
Mar. 20, 1978
Applicant:
Inventor:
Floyd V Hall, Durham, NC (US);
Assignee:
Liggett Group Inc., Montvale, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24C / ;
U.S. Cl.
CPC ...
93 / ;
Abstract
The apparatus for making the filter forms a stream of tow into a U-shaped trough so that charges of charcoal can be injected into the trough by a charcoal wheel. The shape of the tow is ensured by feeding the tow into a funnel-shaped passageway from below the level of the passageway, the tow remains U-shaped without the need of any other means.