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:
Oct. 24, 1989
Filed:
Nov. 12, 1987
Gary Underwood, Manitowoc, WI (US);
Robert G Graham, Nepean, CA;
Ensyn Engineering Associates Inc., Ontario, CA;
Abstract
An aqueous wood smoke solution for flavoring foodstuffs is produced by heating in an oxygen starved atmosphere ground wood or cellulose to between 400.degree. C. and 650.degree. C. within 1.0 second; maintaining the said wood or cellulose and the primary pyrolysis vapors between 400.degree. C. and 650.degree. C. for between 0.03 and 2.0 seconds; reducing the temperature of the pyrolysis products to below 350.degree. C. within 0.6 seconds; separating and collecting the water soluble liquid products; and diluting the said water soluble liquid products with water to achieve a partial phase separation and to reduce the benzo(a)pyrene concentration to less than 1.0 ppb.