Roasting system having roasting drum with actuatable hatch

US11918023B2 · kind B2 · utility

Assignee

• Bellwether Coffee Co. · US

Inventors

• John Sandhu · Boulder, US
• Arno Holschuh · Berkeley, US
• Ricardo Lopez · Bolinas, US
• Jeremiah Peevyhouse · Berkeley, US
• Peter Joseph Schmehl · Berkeley, US
• Neil Sandhu · Boulder, US
• Jeff Wyatt · Berkeley, US
• Mose O'Griffin · San Francisco, US
• Andrew Damele · San Francisco, US
• Michael Shawver · Mill Valley, US

Key dates

• Filing date: Apr 17, 2019
• Grant date: Mar 5, 2024
• Expiry date: Jul 1, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A23N12/083
• WIPO field: Food chemistry
• WIPO sector: Chemistry

Abstract

A bean roasting system includes a roasting chamber, a blower, a variable diverter and a controller. The roasting chamber, the blower and the variable diverter each is disposed at least partially within a recirculating gas flow path. The blower is configured to provide a flow stream of gas through the recirculating gas flow path. The variable diverter is configured to split the gas flow path into at least two flow paths including a treated flow path and a bypass flow path. The treated flow path includes a series arrangement of a gas heater and a catalytic converter. The variable diverter is configured to control a percentage of a flow stream of gas that is diverted into the bypass flow path. The controller is configured to activate different predetermined operating modes for the bean roasting system by controlling a state of the variable diverter and a state of the heater.