Food or edible material: processes – compositions – and products – Processes – Preparation of product which is dry in final form
Reexamination Certificate
2011-08-16
2011-08-16
Becker, Drew E (Department: 1782)
Food or edible material: processes, compositions, and products
Processes
Preparation of product which is dry in final form
C426S427000, C426S523000, C034S468000, C034S479000, C034S480000
Reexamination Certificate
active
07998515
ABSTRACT:
Coffee beans are roasted with heated air in a roasting chamber, and contaminant-laden exhaust air including caffeine entrained therein is discharged from the chamber. While roasting is in progress, the exhaust air from the chamber is heated, directed through a catalytic converter and cooled to a temperature between about 250° F. to 325° F. Thereafter the cooled exhaust air flows through a cooler or condenser where the temperature of the cooled exhaust air is further lowered to between about 100° F. and 155° F., and it is then directed through a HEPA filter to remove caffeine particles that are present in the cooled air. Substantially caffeine-free clean exhaust air can then be discharged from the HEPA filter directly to the surroundings of the roasting machine such as a closed room, e.g. a retail establishment, frequented by persons.
REFERENCES:
patent: 1640648 (1927-08-01), Cross
patent: 3522692 (1970-08-01), Brookman
patent: 4284609 (1981-08-01), deVries
patent: 4322445 (1982-03-01), Peter et al.
patent: 4548827 (1985-10-01), Katz et al.
patent: 4818552 (1989-04-01), Kaper
patent: 5690018 (1997-11-01), Hansen
patent: 5928697 (1999-07-01), Argiles Felip
patent: 7285300 (2007-10-01), Allington et al.
patent: 2009/0068338 (2009-03-01), Lange et al.
patent: 2009/0130277 (2009-05-01), Bressner et al.
patent: WO 99/23888 (1999-05-01), None
Allen Kevin
Perkins John R.
Weisberg Matthew P.
Becker Drew E
Group 32 Development and Engineering, Inc.
Kilpatrick Townsend & Stockton LLP
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