55 results about "Particulate debris" patented technology

A low-profile, embolic protection device for collecting particulate debris in a body lumen, wherein an embolic filter is utilized that is expandable and collapsible by push-pull action. A filter first end is axially secured to an elongate inner member and a filter second end is attached to a distal tip of an outer tubular member. The filter is delivered to a treatment site inverted within a distal portion of the outer tubular member. The elongate inner member is slidable within the outer shaft, such that relative longitudinal movement between the elongate inner member and outer shaft reconfigures the filter between its inverted and everted configurations, as well as its expanded and collapsed configurations.

A powered air cleaning system (1) and air cleaning method are disclosed. The system has a flow path (22) extending through the system from an air inlet (4) to a clean air outlet (5). A motor-driven fan (24) located along the flow path draws particulate debris laden air into the inlet and rotates it about an axis (A—A) to form a rotating flow that stratifies the debris laden air with the heaviest particles in the outermost orbits of the rotating flow. An ejector port (25) is provided for ejecting particulate debris laden air from the stratified rotating flow in the system to the environment. An air filter (9) located within the rotating flow and across the flow path upstream of the outlet filters air from the innermost orbits of the stratified rotating flow. The motor-driven fan is operated to maintain a positive air pressure in the system on the filter even with cyclic air flow demands so that the rotating air flow continually sweeps the outside surface of the air filter to minimize buildup of debris on the filter.

The present invention relates to an interventional device for interacting with occlusive material. A wall attachment jet moves and removes particulate from lumens such as vessels.

A method and an air precleaner for separating heavier-than-air particulate debris from debris laden air to provide a clean airflow are disclosed. A flow path extends through the precleaner from an inlet to an outlet. Debris laden air is drawn into the inlet by a vacuum in communication with the outlet of the precleaner. A vortex flow of the debris laden air is formed in the flow path and flows through a first stage, ejective based precleaner and a second stage, scavenger based precleaner. Each stage centrifugally separates and removes particles of debris from the vortex flow. Efficient operation under extreme conditions with significant improvement in air filter life, is made possible by the air precleaner and method.

A powered air cleaning system has a flow path extending through the system from an inlet to an outlet. A motor-driven fan is located along the flow path to draw particulate debris laden air into the inlet and rotate it about an axis to form a rotating flow that stratifies the debris laden air with the heaviest particles in the outermost orbits of the rotating flow. An ejector port ejects particulate debris laden air from the stratified rotating flow in the system. At least one de-swirl component located within the rotating flow aerodynamically redirects clean air from the innermost orbits of the stratified rotating flow toward the outlet to provide a positive airflow pressure out of the outlet. The system has a variable speed fan motor and an integrated controller for adjusting the speed of the motor and thereby the flow rate of clean air through the outlet of the system. The controller receives a signal that is a function of airflow requirements of a device supplied with clean air by the system. The system can be mounted above or below a hood housing an engine to be supplied with clean air.

A versatile compact air precleaner for separating heaver-than-air particulate debris from debris laden air has a retroflexed flow path through a separator chamber. A motor of a motor-driven fan is located in the flow path downstream from the separator chamber. A plurality of independently rotatably adjustable housing sections of a housing are formed with respective ones of the air precleaner debris laden air inlet, particulate debris ejector ports, clean air outlet, and mounts for mounting the air precleaner to a support to provide utility with multiple clean air outlet configurations, directions of ejection of particulate debris from the ejector ports, inlet configurations, precleaner sides for mounting, and filter sizes. A separator chamber end section including the ejector ports and the filter are connected forming a removable, disposable air filter cartridge which obviates ejector port clogging with change of filters.

A catch basin assembly for draining water into an underground drainage conduit through a riser includes a housing having an open top and a bottom including an outlet section configured for connection to the riser. A debris trap is removably installed in the housing so as to capture and retain particulate debris from water flowing into the housing through the top thereof, the debris trap having an apertured portion that allows water to flow from the debris trap to the outlet section. The housing has a tapered configuration, whereby two or more housings, with the debris traps removed therefrom, can be stacked in a nesting relationship.

A powered air cleaning system (31) and a method of making the system are disclosed. The system comprises a flow path (22) extending through the system from an air inlet (4) to a clean air outlet (5). A motor-driven fan (24) located along the flow path draws particulate debris laden air into the inlet and rotates it about an axis (A-A) to form a rotating flow that stratifies the debris laden air with the heaviest particles in the outermost orbits of the rotating flow. An ejector port (8) is provided for ejecting particulate debris laden air from the stratified rotating flow in the system to the environment. An air filter (9) located within the rotating flow and across the flow path upstream of the outlet filters air from the innermost orbits of the stratified rotating flow. The system is formed of a plurality of components (2, 3) separately mountable in remote locations (32, 33) in a device to be supplied with clean air. The components are interconnected with an intermediate pipe assembly (34).

Cerebrospinal fluid shunts (implantable devices for diversion of excess fluid from the brain to other body cavities) used to treat hydrocephalus often malfunction. A common etiology of shunt malfunction is obstruction of the distal catheter tip by accumulating particulate matter such as fat or proteinaceous debris. The proposed implantable device maintains the patency of the cerebrospinal fluid shunt with mechanical energy which serves to “scrub” the catheter lumen of particulate debris. The proposed device accomplishes this by housing a source of mechanical energy which is coupled to the external aspect of the catheter, itself traversing through a bore in the device. The energy source secondarily induces a waveform in the cerebrospinal fluid flowing through the catheter. The fluid waveform exerts shearing forces on the catheter wall and serves to disrupt the formation and accumulation of debris that potentially could occlude the shunt catheter, thereby maintaining patency of the shunt.

A powered air cleaning system (31) and air cleaning method are disclosed. The system comprises a flow path (22) extending through the system from an air inlet (4) to a clean air outlet (5). A motor-driven fan (24) located along the flow path draws particulate debris laden air into the inlet and rotates it about an axis (A-A) to form a rotating flow that stratifies the debris laden air with the heaviest particles in the outermost orbits of the rotating flow. An ejector port (33) is provided for ejecting particulate debris laden air from the stratified rotating flow in the system to the environment. An air filter (9) located within the rotating flow and across the flow path upstream of the outlet filters air from the innermost orbits of the stratified rotating flow. The motor-driven fan is operated to maintain a positive air pressure in the system on the filter even with cyclic air flow demands so that the rotating air flow continually sweeps the outside surface of the air filter to minimize buildup of debris on the filter.

A guard sized and configured for detachable attachment to a housing of a reciprocating saw, which saw comprises a least one saw blade, wherein the guard forms at least one flexible surface which in turn defines an aperture which extends through the guard and which aperture is sized and configured to allow the blade to extend there through, and wherein the flexible surface contacts the blade when the blade extends through the opening so that a portion of the guard flexes with the movement of the blade to thereby inhibit entry of liquid or particulate debris into the housing when the saw is in use. Reciprocating saws modified with the guard and a method of protecting reciprocating saws from liquid or particulate debris are also provided.

A foot washer including a tray for holding water and a removable foot support member for insertion into the tray. The foot support member includes a grid member having a plurality of openings therethrough to thereby allow sand or other particulate debris to fall through the grid member and to the closed bottom of the tray. The grid member is supported by a support member such that the grid member is positioned above the closed bottom and below the open top of the tray. The tray is filled with water in order to submerge the grid member. The grid member is preferably substantially flat. To assist in draining water from the tray, the tray is preferably provided with a spigot.

An aggregate processing system, including a water source, and a vibrating screen device including a plurality of spray nozzles disposed above a screen for spraying wash water onto aggregate during aggregate processing. A strainer device is provided for removing particulate debris from a water wash stream flowing from a water source to the spray nozzles, the strainer device including a filter screen having an angled shape with a convex side facing the strainer inlet and fluid flow path. The strainer is configured to induce turbulent flow for separation of the particulates by gravity, with the filter screen blocking particulates above a given size. In this manner, particulates which may otherwise lead to clogging of the spray nozzles are removed from the wash water stream.

A flexible elongate device having a distally mounted occluder for collecting particulate debris in a body lumen. The occluder containing a fixed amount of fluid is reversibly expandable by push-pull actuation from a contracted configuration to a deployed configuration wherein the occluder is expanded into sealing engagement with the wall of the body lumen. The occluder has a distal end axially secured to an elongate inner member and a proximal end attached to a distal end of an outer tubular member. The occluder has an impermeable occluder casing for containing the occluder fluid. The elongate inner member is slidable within the outer tubular member such that relative longitudinal movement between the elongate inner member and outer tubular member changes the length of the occluder and thus redistributes the occluder fluid within the occluder casing to transform the occluder between its contracted and deployed configurations.

The invention discloses a water leakage prevention straw and a water cup blowout prevention and water inhaling prevention structure. The water leakage prevention straw comprises a pipe body and a water blocking valve, wherein the pipe body can be elastically deformed under the extrusion of external force, the water blocking valve is arranged in the pipe body, the water blocking valve comprises atleast two sealing pieces, the edge of one side of each sealing piece is connected to the inner wall of the pipe body, the other edges of the sealing pieces are mutually contacted and pressed, and thethicknesses of the sealing pieces are gradually increased from one side close to the center of the pipe body to one side connected with the inner wall of the pipe body. According to the water blockingvalve structure, the strength of the sealing pieces and the strength of the joint of the sealing pieces and the pipe wall can be improved, the resilience force of the sealing pieces is better, the service life is longer, the problem that the function of the sealing pieces is lost due to repeated bite and water drinking of infants is solved, particles and fragments generated by breakage or fallingof the sealing pieces are reduced or eliminated, and the purposes of protecting the health of the infants, preventing splashing during cover opening and preventing liquid from flowing out when the upper cover is transversely placed, inverted and shaken during opening are achieved.

A pressure diffuser washer comprising: an outer wall, an inner wall adjacent to the outer wall, the inner wall defining annular baffle chambers between the outer wall and the inner wall, wherein each of the annular baffle chambers is configured to connect to a source of a wash liquid, a reciprocating screen assembly adjacent to the inner wall, the reciprocating screen assembly defining a first annular chamber between the inner wall and the reciprocating screen assembly, an area in the inner wall defining a gap associated with each of the annular baffle chambers, wherein the wash liquid from an annular baffle chamber flows through the gap into the first annular chamber, and an annular baffle screen plate covering the gap, wherein the annular baffle screen plate defines openings sized to prevent rocks and other large particulate debris from entering the annular baffle chambers.

Method and apparatus for mitigating the transport of debris generated and dispersed from electric discharge sources by thermophoretic and electrostatic deposition. A member is positioned adjacent the front electrode of an electric discharge source and used to establish a temperature difference between it and the front electrode. By flowing a gas between the member and the front electrode a temperature gradient is established that can be used for thermophoretic deposition of particulate debris on either the member or front electrode depending upon the direction of the thermal gradient. Establishing an electric field between the member and front electrode can aid in particle deposition by electrostatic deposition.

The invention provides a water-permeable brick, comprising a main brick body, wherein the main brick body has an upper surface; the main brick body is provided with a receiving cavity arranged inwardly along the upper surface; a plurality of limiting grooves are arranged on the inner side of the upper end of the receiving cavity; a plurality of flow guiding tubes are arranged on the lower end of the receiving cavity; the plurality of flow guiding tubes are connected with a plurality of water storage tanks; A water permeable cavity is arranged in the accommodating cavity, the water permeable chamber includes a water permeable layer, the side of the water permeable layer is provided with a plurality of limiting blocks, A plurality of the limiting blocks are connected with the plurality of the limiting slots, The water permeable layer is provided with a flow guiding rod, a plurality of flow guiding plates are arranged on the flow guiding rod, a filter screen is arranged on the outer surface of the water permeable chamber, and a sedimentation tank is arranged on the lower part of the water permeable chamber, so as to reduce the cleaning operation of the accommodation chamber of the water permeable brick by the staff, and prevent the blocking phenomenon of the flow guiding pipe at the bottom of the accommodation chamber caused by particulate debris.