Described is a self-cleaning extrusion orifice assembly including an enclosure, a cylindrical body inserted into the enclosure and terminated by an extrusion orifice. The self-cleaning extrusion orifice assembly is operated by a pressurized air flow. The pressurized air flow flushes surfaces of some elements of self-cleaning extrusion orifice assembly removing debris that could be deposited on these surfaces. In addition, some elements of self-cleaning extrusion orifice assembly are configured to scrape extrusion process debris from the same surfaces.

A method for cleaning a ventilation system of a clothes dryer includes operatively connecting an open proximal end of a hollow duct cleaning tool to a portable airstream appliance adapted for generating a pressurized airflow. A lint screen is first removed from a screen housing opening at the lint exhaust of the clothes dryer. An open distal end of the hollow duct cleaning tool is then placed over the screen housing opening of the clothes dryer, such that the distal end closely engages the clothes dryer to operatively air-seal the screen housing opening. The portable airstream appliance is then activated to direct the pressurized airflow through the duct cleaning tool, lint exhaust and ventilation system of the clothes dryer, thereby evacuating lint and debris collected inside the ductwork of the ventilation system.

A method for simultaneously unblocking multiple blocked valve fittings is described. The method includes coupling a tool to unblock multiple valve fittings simultaneously to a valve with multiple valve fitting blocked to fluid flow. The tool includes a pressure vessel holding a cleaning fluid, an input conduit fluidically coupled to the pressure vessel to flow the cleaning fluid from a cleaning fluid source to the pressure vessel and to adjust a pressure of the pressure vessel, and injection conduits to flow the cleaning fluid from the pressure vessel to the valve fittings. The method includes simultaneously flowing the cleaning fluid from the pressure vessel through the injection conduits to the valve fittings. Responsive to flowing the cleaning fluid to the valve fitting, the valve fittings are unblocked.

An agricultural fertilizer system and method for applying a granular fertilizer to a field. A hopper defines a cavity adapted to hold the granular fertilizer and a metering device is coupled to the hopper, and is adapted to deliver a metered amount of fertilizer through a fertilizer hose coupled to a fertilizer spreader. A sensor device is disposed along the fertilizer hose between the fertilizer hose input and the fertilizer house output to identify a blockage resulting from a build-up of fertilizer. A blower delivers an airflow through an airflow hose operatively connected to the fertilizer hose, wherein the airflow hose is connected to the blower hose between the metering device and the sensor device. The airflow provided by the blower reduces or eliminates a buildup of fertilizer within the fertilizer hose to maintain a proper flow of fertilizer from the metering device and the fertilizer spreader.

Disclosed is an electrostatic coating apparatus comprising: an atomizing head cleaning flow path (13) which is disposed at a coating machine (3) and through which a cleaning fluid for cleaning a rotary atomizing head (6) and a front end of a feed tube (8C) of a cartridge (8) flows; a cleaning fluid flow path (14) connecting a cleaning fluid supply source (15) with the atomizing head cleaning flow path (13); a cleaning fluid valve (16) disposed in the cleaning fluid flow path (14) and configured to open and close the cleaning fluid flow path (14); a discharge air flow path (17) connected to the atomizing head cleaning flow path (13) and through which the discharge air flows; a cleaning fluid discharge flow path (20) connected to the cleaning fluid flow path (14) at a connection point (D) located between the atomizing head cleaning flow path (13) and the cleaning fluid valve (16); a discharge air switching valve (21) disposed in the atomizing head cleaning flow path (13) and configured to open and close the atomizing head cleaning flow path (13); and a cleaning fluid discharge valve (22) disposed in the cleaning fluid discharge flow path (20) and configured to open and close the cleaning fluid discharge flow path (20).

A machine that includes a cooling package and a method for cleaning debris from the cooling package is disclosed. The cooling package may include a housing, a cooler, a heat exchanger, a conduit, and plurality of nozzles mounted on the conduit. The cooler may be configured to receive heated machine fluid generated by the machine. The heat exchanger may be configured to convey heat away from the cooler and may include a plurality of fins coupled to and extending outward from the cooler. The plurality of fins may define a plurality of channels. The conduit may be disposed between the housing and the plurality of fins. The plurality of nozzles are configured to discharge a fluid on the fins. The fluid may be air or a release agent. In some embodiments, a release agent may be discharged on the fins prior to the discharge of air on the fins.

A contaminant-flushing machine for removing contaminants from a container, such as an engine transmission, air-conditioner coil, or transmission cooler, which includes hoses for coupling to the transmission cooler and a pump for circulating fluid through the hoses and the transmission cooler, the flushing machine being configured to terminate all circulating of fluid when a pressure drop is detected during times when the fluid is circulating only in the primary flow direction, but not when the flow direction is being reversed.

A mobile cleaning unit (410) for cleaning breathing apparatus (112) is proposed. The mobile cleaning unit (410) comprises: at least one trolley (310) with at least one support surface (316) and with at least one running gear (320); at least one pressurized-gas source (416) mounted on the trolley (310); and at least one cleaning appliance (110) which is mounted on the trolley (310) and which serves for the cleaning of the breathing apparatus (112), wherein the cleaning appliance (110) comprises: at least one cleaning chamber (116) for accommodating at least one breathing apparatus (112), at least one fluid device (122) for applying at least one cleaning liquid to the breathing apparatus (112), wherein the fluid device (122) has at least one nozzle (124), at least one holder (174) which can be introduced into the cleaning chamber (116) and which serves for accommodating the breathing apparatus (112), wherein the holder (174) is configured to orient the breathing apparatus (112) relative to the fluid device (122), at least one pressure-applying appliance (202) which is connectable to the pressurized-gas source (416) and which has at least one pressure connector (204), wherein the pressure connector (204) is connectable to at least one gas-conducting element (196) of the breathing apparatus (112), wherein the pressure-applying appliance (202) is configured to charge the gas-conducting element with pressurized gas while the cleaning fluid is applied to the breathing apparatus.

A reconditioning apparatus including: a chamber for a medical instrument having a channel(s); fluid connections in the chamber connected to the channel(s) to flush them with a reconditioning fluid; a memory for storing data sets, each data set comprising information relating to an allocation of the fluid connections to a specific type of medical instrument; and an input device for detecting an identifying feature; wherein the input device detects the identifying feature of the medical instrument, in which information relating to the type of the medical instrument is stored; a controller compares the type of the medical instrument identified based on the read-out information with data sets in the memory and establishes an allocation of a fluid connection(s) connected to the channel(s) on the basis of the identified type and actuates a compressed air source to apply compressed air to the allocated fluid connections to blow out the channel(s).

Apparatus and methods for cleaning a single-port fluidic device, such as a single-port, diaphragm-based cardiac pump, with a continuous stream of fresh cleaning fluid, while simultaneously draining soiled fluid, via a single input-output port of the fluidic device. A first coupler releasably mates with the input-output port. The first coupler includes an injector nozzle and a return port. The injector nozzle is oriented to direct a stream of pressurized cleaning fluid toward an interior chamber of the single-port fluidic device. The return port simultaneously removes soiled cleaning fluid from the interior chamber. A circulation pump delivers the pressurized cleaning fluid from a tank to the injector nozzle, and returns soiled cleaning fluid from the return port to the tank, via a cleaning fluid circulation circuit. Optionally, the diaphragm may be alternately driven between two positions, to agitate the cleaning fluid within the interior chamber, thereby enhancing cleaning efficiency.