Patent ID: 8356464

Claim:
A pollen harvesting machine comprising a motorised chassis on which there is mounted a plurality of pollen harvesting heads for harvesting pollen by suction, the plurality of pollen harvesting heads being mounted on a common ramp such that their position is fixed with respect to each other, suction circuits connecting the heads to a separation cyclone, a suction fan on the opposite side of the separation cyclone in the direction of airflow from the suction heads, such that the suction fan creates the suction to draw the pollen from the heads, to and through the separator cyclone, a pollen receiving hopper in communication with the separation cyclone to receive harvested pollen when separated out by the separation cyclone, the hopper having a structure exterior thereof for receiving a coolant material to freeze the harvested pollen in the hopper, said structure comprising a thermally insulated enclosure surrounding the hopper to define between the enclosure and the hopper a space for receiving the coolant material.