Abstract: A device for removing liquid or solid contaminants such as oil or dust dispersed in air in which an air flow is directed through a space formed by a spiral wall in a cyclonic chamber condenses the particles or droplet which drops down into a collection chamber below the cyclonic chamber while the cleaned air passes out through an outlet extending back up through the cyclonic chamber. A baffle plate array is located at the bottom of the collection chamber composed of spaced apart shallowly inclined partially overlapping plates which captures any cyclonic air flow at the bottom of the collection chamber. This removes contaminants which would otherwise accumulate at the center of the bottom of the collection chamber and be entrained in the air exiting the device.

Abstract: A filter apparatus includes a endless filter belt loop disposed in an interior space within a tank which receives liquid to be filtered. The filter belt has a series of closely spaced parallel guide-flight bars attached which are successively engaged by an extendible element on a pivot plate which is periodically oscillated to under the filter belt. The bars are received in guide spaces to hold the filter belt in position over a filter support having openings allowing filtering flow therethrough. Collapsible sealed hoses partially filled with liquid are used as edge seals extending along the guide spaces over side edges of the filter belt and are expanded by engagement of an upper end of each of the hoses with a squeeze member on the pivot plate. The squeeze members are moved off the hoses when the pivot plate is oscillated to advance the filter belt during indexing to release the sealing pressure and allow filter belt indexing movement.

Abstract: An oil mist collection system for a plurality of machine tools each having a coolant system directing coolant at the cutting tools and collecting coolant and returning the same to a filtration system includes an oil mist collector at each station collecting oil from mist present at each station and draining the oil back to the associated machine tool coolant return, and return air ducts from each of the oil mist collectors extending to a central air filtration apparatus. Each oil mist collector preferably includes a vertical spiral coil wall defining a spiral flow path into which the mist is directed, the oil droplets collecting onto the spiral coil wall and draining into a collection chamber below the spiral coil wall for return to the associated machine tool via a drain line. Each mist collector is comprised of an inlet housing, a spiral coil housing and a collection housing forming a unitary housing assembly.

Abstract: A device for removing liquid or solid contaminants such as oil or dust dispersed in air in which an air flow is directed through a space formed by a spiral wall in a cyclonic chamber condenses the particles or droplet which drops down into a collection chamber below the cyclonic chamber while the cleaned air passes out through an outlet extending back up through the cyclonic chamber. A baffle plate array is located at the bottom of the collection chamber composed of spaced apart shallowly inclined partially overlapping plates which captures any cyclonic air flow at the bottom of the collection chamber. This removes contaminants which would otherwise accumulate at the center of the bottom of the collection chamber and be entrained in the air exiting the device.

Abstract: An oil mist collection system for a plurality of machine tools each having a coolant system directing coolant at the cutting tools and collecting coolant and returning the same to a filtration system includes an oil mist collector at each station collecting oil from mist present at each station and draining the oil back to the associated machine tool coolant return, and return air ducts from each of the oil mist collectors extending to a central air filtration apparatus. Each oil mist collector preferably includes a vertical spiral coil wall defining a spiral flow path into which the mist is directed, the oil droplets collecting onto the spiral coil wall and draining into a collection chamber below the spiral coil wall for return to the associated machine tool via a drain line. Each mist collector is comprised of an inlet housing, a spiral coil housing and a collection housing forming a unitary housing assembly.

Abstract: A filter apparatus includes a endless filter belt loop disposed in an interior space within a tank which receives liquid to be filtered. The filter belt has a series of closely spaced parallel guide-flight bars attached which are successively engaged by an extendible element on a pivot plate which is periodically oscillated to under the filter belt. The bars are received in guide spaces to hold the filter belt in position over a filter support having openings allowing filtering flow thererthrough. Collapsible sealed hoses partially filled with liquid are used as edge seals extending along the guide spaces over side edges of the filter belt and are expanded by engagement of an upper end of each of the hoses with a squeeze member on the pivot plate. The squeeze members are moved off the hoses when the pivot plate is oscillated to advance the filter belt during indexing to release the sealing pressure and allow filter belt indexing movement.