Abstract: A supercritical fluid extraction system including a housing, motor, linkage assembly, and carriage coupled to the linkage. A piston assembly includes a piston housing with a chamber, back check valve, and piston coupled to the carriage and movable within the piston housing. The piston assembly includes a fluid inlet fluidly communicating with the chamber, and receives, compresses, and expels fluid into an exit fluid line. An intake manifold receives fluid and provides an inlet pathway to the fluid inlet. A single-pass flow path fluidly connects the exit fluid line and a collection chamber, extending through the exit fluid line, a compression chamber, a flow modulator assembly, and the collection chamber. The fluid extracts liquid from solid material within the compression chamber when at a minimum pressure within the compression chamber, passes through the flow modulator assembly and precipitates the extracted liquid into the collection chamber when below the minimum pressure.

Abstract: An air compressor that can take in air at a particular pressure at the input and compress the air such that it exits an output at a much greater pressure until a desired pressure is reached in a piston assembly, at which point, the air compressor can shut off automatically by moving a switch. A tank does not need to be part of the compressor assembly, and thus, the air compressor is capable of determining the pressure and shutting off at the desired pressure regardless of the particular tank that is removeably connected to the air compressor. The switch can be moved to an off position by an arm pivotally connected to a carriage. In addition, the air compressor can utilize a piston assembly having a plurality of stationary o-rings for receiving a piston.

Abstract: A supercritical fluid extraction system including a housing, motor, linkage assembly, and carriage coupled to the linkage. A piston assembly includes a piston housing with a chamber, back check valve, and piston coupled to the carriage and movable within the piston housing. The piston assembly includes a fluid inlet fluidly communicating with the chamber, and receives, compresses, and expels fluid into an exit fluid line. An intake manifold receives fluid and provides an inlet pathway to the fluid inlet. A single-pass flow path fluidly connects the exit fluid line and a collection chamber, extending through the exit fluid line, a compression chamber, a flow modulator assembly, and the collection chamber. The fluid extracts liquid from solid material within the compression chamber when at a minimum pressure within the compression chamber, passes through the flow modulator assembly and precipitates the extracted liquid into the collection chamber when below the minimum pressure.

Abstract: An air compressor that can take in air at a particular pressure at the input and compress the air such that it exits an output at a much greater pressure until a desired pressure is reached in a piston assembly, at which point, the air compressor can shut off automatically by moving a switch. A tank does not need to be part of the compressor assembly, and thus, the air compressor is capable of determining the pressure and shutting off at the desired pressure regardless of the particular tank that is removeably connected to the air compressor. The switch can be moved to an off position by an arm pivotally connected to a carriage. In addition, the air compressor can utilize a piston assembly having a plurality of stationary o-rings for receiving a piston.