An oil extractor that includes: a main body housing; a motor; a feed hopper detachably coupled to the upper end of the main body housing to feed grain; a shell that communicates with the lower end of the feed hopper to receive the grain and is detachably coupled to one side of the main body housing; a screw shaft inserted into the shell and having an end portion that passes through one side of the main body housing and is coupled to the motor; a fastening means for detachably coupling the shell to the main body housing; and a shell cover surrounding the shell. The shell cover has a groove formed on its lower portion for receiving the shell and is supported by the main body housing and moves between a first position at which the shell is covered and a second position at which the shell is exposed.

A pressing apparatus having a strainer cage and at least two feeding screws, which are arranged one behind the other in the feeding direction on a common screw shaft, wherein a pressure zone with no screw helix is arranged between the feeding screws. In the region of the pressure zone, the pressing apparatus according to the invention has a plurality of scraper shells, and these provide for improved efficiency of the pressing operation.

A low speed seed oil expeller press with the capability of extracting oil through a new design that does not crush or grind the seed so as to eliminate the need for filtration and maintain the seed oil at a temperature below 130 degrees F. The seed oil expeller press has a seed preheating capability and controls the pressure and extraction oil temperature by manipulation of the expeller speed, the head volume and the size of the pressed seed exit orifice. The seed oil expeller press eliminates seed rotation within the head volume so as to eliminate crushing, grinding or tearing of the seed by a symmetrical knifed press head. The seed oil expeller press regulates seed temperature, seed feed rate, seed pressure, seed rotation and extracted seed oil temperature so as to compensate for the seed size, seed hardness and seed oil content, so as to allow for seed compression without crushing or tearing to accomplish seed oil extraction at a low (cold press) temperature.

A pressing apparatus having a strainer cage and at least two feeding screws, which are arranged one behind the other in the feeding direction on a common screw shaft, wherein a pressure zone with no screw helix is arranged between the feeding screws. In the region of the pressure zone, the pressing apparatus according to the invention has a plurality of scraper shells, and these provide for improved efficiency of the pressing operation.

A low speed seed oil expeller press with the capability of extracting oil through a new design that does not crush or grind the seed so as to eliminate the need for filtration and maintain the seed oil at a temperature below 130 degrees F. The seed oil expeller press has a seed preheating capability and controls the pressure and extraction oil temperature by manipulation of the expeller speed, the head volume and the size of the pressed seed exit orifice. The seed oil expeller press eliminates seed rotation within the head volume so as to eliminate crushing, grinding or tearing of the seed by a symmetrical knifed press head. The seed oil expeller press regulates seed temperature, seed feed rate, seed pressure, seed rotation and extracted seed oil temperature so as to compensate for the seed size, seed hardness and seed oil content, so as to allow for seed compression without crushing or tearing to accomplish seed oil extraction at a low (cold press) temperature.

A low speed seed oil expeller press with the capability of extracting oil through a new seed compression design that eliminates the need for filtration, and maintains the captured seed oil at a temperature below 130 degrees F. It has a seed preheating capability and controls the pressure and extraction oil temperature by adjustments of the expeller speed, the head volume and the size of the pressed seed exit orifice in the thorn. The seed oil expeller press eliminates seed rotation within the head volume so as to eliminate crushing, grinding or tearing of the seed by a symmetrical knived press head. The seed oil expeller press regulates seed temperature, seed feed rate, seed pressure, seed rotation and extracted seed oil temperature so as to compensate for the seed size, seed hardness and seed oil content.

A screw press liquid separator includes an elongated housing having an inlet end and a discharge end, a screw cradle in the form of a sieve disposed within the housing and having a bulk material inlet disposed at the inlet end of the housing, at least one section of the screw cradle mechanically coupled to a vibrator motor, a screw formed on a shaft and disposed within the screw cradle, the screw extending from the inlet end of the screw cradle to a discharge end of the screw cradle, a motor rotatably coupled to the shaft, and pair of opposing discharge doors pivotally mounted to the discharge end of the housing and movable between an opened position and a closed position, the discharge doors driven to positions that maintain a substantially constant pressure on bulk material being driven by the screw towards the discharge end of the housing.

An oil extractor that includes: a main body housing; a motor; a feed hopper detachably coupled to the upper end of the main body housing to feed grain; a shell that communicates with the lower end of the feed hopper to receive the grain and is detachably coupled to one side of the main body housing; a screw shaft inserted into the shell and having an end portion that passes through one side of the main body housing and is coupled to the motor; a fastening means for detachably coupling the shell to the main body housing; and a shell cover surrounding the shell. The shell cover has a groove formed on its lower portion for receiving the shell and is supported by the main body housing and moves between a first position at which the shell is covered and a second position at which the shell is exposed.

The invention relates to a screw press (1) comprising a shaft (4) and a spiral helix (5) provided thereon, wherein the helix (5) goes over in the inlet region (2) of the screw press (1) into a freely projecting helix (8). It is principally characterized in that a tube (9) is provided in the inlet region (2) of the screw press (1). As a result, on the one hand the screen area can be increased greatly in size, on the other hand the co-rotation of the suspension with the shaft can be reduced or avoided.

An improved apparatus for compacting and dehydrating organic waste and/or alimentary waste, comprises: an opening for loading/introducing the organic material and/or the alimentary waste into the apparatus itself; mechanical means for compacting and dehydrating the organic material and/or alimentary waste, comprising a central compacting body, designed to separate the material to be treated from the liquid fraction contained therein; means for collecting and discharging the liquid fraction coming from the treated material; and a drawer, set underneath the central compacting body, for collecting the alimentary waste compacted and dehydrated via the central body and the non-compactable waste that may be introduced manually directly into the drawer.