Coffee roasting apparatus and method

Details Coffee roasting apparatus and method Coffee roasting apparatus and method

2006-12-05

2006-12-05

Becker, Drew (Department: 1761)

Foods and beverages: apparatus

Beverage

Infusors

C099S469000, C099S470000, C099S475000, C099S476000, C099S479000, C099S480000, C099S483000, C034S079000, C034S108000, C034S131000

Reexamination Certificate

active

07143686

ABSTRACT:
A coffee roaster that includes a combustion chamber and a connected roasting oven in which the heating gases for roasting the coffee beans are recirculated to the combustion chamber wherein the coffee bean chaff is separated from the recirculating heating gases prior to venting to atmosphere, and an associated cooling chamber wherein the roasted coffee beans are cooled in a two-stage-heating cycle wherein the cooling air is recirculated to the combustion chamber to be reheated to roasting temperatures and vented to atmosphere during the second stage of cooling. The coffee beans being de-stoned as the cooled coffee beans are conveyed from the cooling chamber to the discharge hopper.

REFERENCES:
patent: 1843131 (1932-02-01), Howson
patent: 2762289 (1956-09-01), Crutcher et al.
patent: 3841826 (1974-10-01), Angstadt et al.
patent: 4642906 (1987-02-01), Kaatze et al.
patent: 5709542 (1998-01-01), Rentzel et al.
patent: 5928697 (1999-07-01), Argiles
patent: 6382087 (2002-05-01), Lilyama
patent: 3711098 (1988-10-01), None
patent: 3711098 (1988-10-01), None

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