Patent ID: 9669328
Date: 2017-06-06
CPC Classifications: A61K,B01D,C11B

Claim:
1. An extraction device, comprising: a solvent chamber structured to store a solvent having a stored solvent volume; a plant material chamber attached to and in fluid communication with the solvent chamber and providing a fluid pathway between the solvent chamber and the plant material chamber, the plant material chamber structured to receive solvent released from the solvent chamber released via a controllable solvent reservoir flow control feature, the plant material chamber structured to house plant material and to expose the received solvent to the plant material to produce a solvent-extract solution; a collection chamber in fluid communication with the plant material chamber and providing a fluid pathway between the plant material chamber and the collection chamber, the collection chamber structured to receive the solvent-extract solution from the plant material chamber, the solvent-extract solution including extracted plant material extracts produced from the exposure of the solvent to the plant material; a solvent return pathway for solvent released from the solvent-extract solution that includes at least a solvent return, the solvent return providing fluid communication directly between one or more of: (i) the fluid pathway between the solvent chamber and the plant material chamber and the solvent chamber, (ii) the plant material chamber and the solvent chamber, and (iii) the fluid pathway between the plant material chamber and the collection chamber and the solvent chamber; and one or more flow control elements positioned in-line with the solvent return pathway and configured to regulate the flow of released solvent from the collection chamber to the solvent chamber.