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.

Abstract: A bean roasting system includes a roasting drum, an air handling system, a bean cooler, and an air exit subsystem. The air exit subsystem is configured to receive and treat a first fluid stream from the air handling system and a second fluid stream from the bean cooler. The air exit subsystem includes a heat sink and a filter. The heat sink defines two parallel fluid paths including a first fluid path and a second fluid path. The air exit subsystem includes a metal body configured to receive heat from the first fluid path and the second fluid path. The first fluid path is fluidically coupled to receive the first fluid stream from the air handling system. The second fluid path is fluidically coupled to receive the second fluid stream from the bean cooler. The filter is fluidically coupled to the first and second air flow paths.

Abstract: A bean roasting system includes a roasting subsystem and an air handling subsystem. The roasting subsystem is configured to receive and to thermally roast a batch of beans. The air handling subsystem is coupled to the roasting subsystem and includes a blower, a cyclone separator, and a heater. The blower is configured to impart air motion. The air passes through the air handling subsystem. The cyclone separator is configured to remove particulates from the air handling subsystem. The heater is configured to heat the air passing through the air handling subsystem. The heater includes heater windings that are incorporated into the cyclone separator.

Abstract: A bean roasting system includes a roasting subsystem, a cooling subsystem, an air exit subsystem that is fluidically coupled to the cooling subsystem, and a controller. The cooling subsystem includes an outer housing containing a holding chamber, a cooling platform defining a lower bound of the holding chamber, a vibration actuator coupled to the cooling platform, and a platform actuator coupled to the cooling platform. The controller is configured to operate the air exit subsystem to maintain a flow of air up through the holding chamber, operate the roasting subsystem to transfer a batch of beans from the roasting subsystem to the holding chamber, operate the vibration actuator to vibrate the cooling platform, operate the air exit subsystem and operate the vibration actuator accelerates cooling of the batch of beans, and operate the platform actuator to transport the batch of beans out of the cooling subsystem.

Abstract: A bean roasting system includes a roasting drum, an agitator, and a door. The roasting drum has an inside surface extending from a back end to a front end. The agitator has blades mounted to an axial shaft. The axial shaft has an anterior end portion. The door is mounted rotationally relative to the roasting drum and includes a glass plate and a bearing assembly. The glass plate provides visual access to contents inside the roasting drum when the door is closed. The bearing assembly includes an outer housing and an inner bearing. The outer housing is mounted to the glass plate. The inner bearing defines a receiving hole that receives and supports the anterior end portion of the axial shaft when the door closed.

Abstract: The present disclosure provides a thermal management device comprising a vapor chamber, a heat pipe in fluid communication with the vapor chamber, and a fin in thermal contact with the heat pipe. The vapor chamber may contain a first working fluid and may facilitate transfer of thermal energy from a source of thermal energy to the first working fluid. The fin may comprise a fluid flow path configured to direct a second working fluid from a first opening to a second opening. The first opening may be oriented along a first direction of flow towards the fin, and the second opening may be oriented along a second direction different than the first direction. The heat pipe may direct the first working fluid from the vapor chamber through the heat pipe and may facilitate transfer of thermal energy from the first working fluid to the fin or the second working fluid.

Abstract: The present disclosure provides systems and methods for printing three-dimensional (3D) objects. A system for printing a 3D object may comprise a platform comprising an area configured to hold a mixture including a photoactive resin. The platform may comprise a first coupling unit. The system may comprise an optical source configured to provide light to the mixture for curing the photoactive resin in at least a portion of the mixture to print at least a portion of the 3D object. The system may comprise a build head configured to support the at least he portion of the 3D object during printing. The build head may comprise a second coupling unit that is configured to couple to the first coupling unit to provide an alignment of the area of the platform relative to a surface of the build head while printing the at least the portion of the 3D object.

Abstract: A bean roasting system includes a roasting drum, an agitator, and a door. The roasting drum has an inside surface extending from a back end to a front end. The agitator has blades mounted to an axial shaft. The axial shaft has an anterior end portion. The door is mounted rotationally relative to the roasting drum and includes a glass plate and a bearing assembly. The glass plate provides visual access to contents inside the roasting drum when the door is closed. The bearing assembly includes an outer housing and an inner bearing. The outer housing is mounted to the glass plate. The inner bearing defines a receiving hole that receives and supports the anterior end portion of the axial shaft when the door closed.

Abstract: A bean roasting system includes a roasting drum, an agitator, and a door. The roasting drum has an inside surface extending from a back end to a front end. The agitator has blades mounted to an axial shaft. The axial shaft has an anterior end portion. The door is mounted rotationally relative to the roasting drum and includes a glass plate and a bearing assembly. The glass plate provides visual access to contents inside the roasting drum when the door is closed. The bearing assembly includes an outer housing and an inner bearing. The outer housing is mounted to the glass plate. The inner bearing defines a receiving hole that receives and supports the anterior end portion of the axial shaft when the door closed.

Abstract: A bean roasting system includes a roasting drum, an agitator, and a door. The roasting drum has an inside surface extending from a back end to a front end. The agitator has blades mounted to an axial shaft. The axial shaft has an anterior end portion. The door is mounted rotationally relative to the roasting drum and includes a glass plate and a bearing assembly. The glass plate provides visual access to contents inside the roasting drum when the door is closed. The bearing assembly includes an outer housing and an inner bearing. The outer housing is mounted to the glass plate. The inner bearing defines a receiving hole that receives and supports the anterior end portion of the axial shaft when the door closed.

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.