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.

Date of Patent:
Jul. 20, 1982

Filed:

Aug. 07, 1980
Applicant:
Inventors:

Roger Z de la Burde, Powhatan, VA (US);

Russell B Mait, Richmond, VA (US);

Francis V Utsch, Midlothian, VA (US);

Assignee:

Philip Morris Incorporated, New York, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B03B / ;
U.S. Cl.
CPC ...
209 11 ; 2091 / ;
Abstract

A method for separating tobacco and sand in stemmery discards is disclosed. The sand tobacco mixture is passed through dryer (14), to reduce the moisture content, agitated by conveyor (16), passed through sieve (18), to obtain the correct particle size and to mechanically agitate the mixture, and is then passed through electrostatic separators (24) and (25) to separate the sand from the tobacco. Portions of the electrostatically separated sand tobacco mixture may be passed through another electrostatic separator (26) to achieve a further separation of sand and tobacco.


Find Patent Forward Citations

de la Burde, Roger. (1982). Tobacco recovery from stemmery discards (U.S. Patent No. 4340142). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4340142

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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