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. 03, 2004
Filed:
May. 02, 2002
Jung S. Moon, Buffalo Grove, IL (US);
Rong Liu, Gurnee, IL (US);
Kitak Chae, Seoul, KR;
Jongrok Kim, Seoul, KR;
Hearthware Home Products, Inc., Gurnee, IL (US);
Abstract
A roaster for roasting coffee beans includes a roasting chamber having a top and a bottom for holding coffee beans when the beans are being roasted, a cover seated on the top of the roasting chamber and a base on which the bottom of the roasting chamber is seated. A device is provided in the base for supplying airflow into the roasting chamber. A controller controls the airflow supplying device to generate a roasting temperature inside the roasting chamber that tracks a predetermined temperature curve. The temperature curve includes a first stage in which the roasting temperature is set to a first predetermined level for a first predetermined time period, and a second stage in which the roasting temperature is set to a second predetermined level that is higher than the first predetermined level. The second stage includes a plurality of stages including a current stage in which the roasting temperature is set to a current predetermined level for a current predetermined time period and a subsequent stage in which the roasting temperature is set to a subsequent predetermined level that is higher than the current predetermined level for a subsequent predetermined time period.