Abstract: A tablet filter which can be attached to a standard grid covering that is attached to a drain like the kind found in homes, restaurants, factories and markets. The tablet filter will be suspended below the standard grid covering to trap any debris which is not trapped by the standard grid covering and, in addition, can be impregnated with various scents or sanitizing agents.

Abstract: A helically-shaped hair trapping mechanism for drains is presented, which is a trapping mechanism that can be placed in a variety of drain sizes and shapes. The trap can be easily removed and cleaned or discarded and will fit in pop-up, plunger, or push-pull drains for showers, bathtubs, or sinks.

Abstract: A drain stopper to soak feet in a tub and shower for soaking one's feet while taking a shower. The drain stopper to soak feet in a tub and shower includes a main tubular member having open top and bottom ends and a bore extending therethrough for removably mounting upon a drain of a tub and shower; and also includes an annular flange member securely attached at the bottom end of the main tubular member for plugging the drain about a perimeter of the main tubular member; and further includes a sieve member removably disposed in the bore of the main tubular member to effectively screen out particulate matter.

Abstract: A safety cover for swimming pool drains for dispersing suction pressure and preventing a person's hair or other body parts from becoming entangled and otherwise preventing injury or death. A generally dome-shaped drain cover is removably affixed to a new and/or existing suction drain using a universal mounting mechanism. The drain cover is preferably circular and includes a peripheral lip, a sidewall, and a segmented dome-shaped top portion. The peripheral lip functions to form a seal with the bottom surface of the pool surrounding the drain, while the sidewall defines a plurality of openings therein and the segmented dome-shaped top portion defines a plurality of segments each of which include a plurality of openings. Each opening incorporates screen mesh material for allowing water to flow therethrough.

Abstract: A cover is provided for an end of a conduit. The cover comprises a front face covering the conduit end and a back face having fasteners for attachment to a conduit. A plurality of apertures pass between the front face and back face to allow the flow of liquid to and/or from the conduit. The edges of the front face defining the entrances to the apertures are non-planar. In addition to, or as an alternative to, the apertures are formed such that the flow of liquid between the front and back faces is deflected so that the liquid follows at least two directions in passing between the front and back faces. The cover can be used as a grille over drainage in a swimming pool.

Abstract: A stopper-strainer device (1) having a diaphragm (2) and a closure plate (4). The diaphragm (2) is provided with apertures (6) for passage of fluid. The diaphragm (2) is movable between 2 first and second conditions in which the stopper-strainer device (1) functions as a stopper and a strainer, respectively. In the first condition, the closure plate (4) seals with the diaphragm (2) so that the stopper-strainer device (1) functions as a stopper to prevent fluid flow. In the second condition, the closure plate (4) is spaced from the diaphragm (2) and fluid is able to pass through the apertures (6) so that the stopper-strainer device (1) functions as a strainer to allow fluid flow while restraining material entrained in the fluid that is unable to pass through the apertures (6).

Abstract: A ramped cap unit is provided for installation into a swimming pool in a position covering a main pool drain equipped with an upstanding antivortex safety drain cover plate, wherein the ramped cap unit has a smoothly contoured shape to permit a pool cleaner device to travel thereover without interrupting or obstructing cleaning operation. The cap unit comprises a generally inverted saucer defining a smoothly sloping and convex or ramped upwardly presented surface having a diametric size and shape to fit over the safety drain cover plate. An array of ribs formed on the underside of the cap unit engage an outer periphery of the upstanding cover plate to retain the cap unit in position thereon. A large plurality of vents are formed in the cap unit at spaced-apart locations to permit downward water flow therethrough substantially without disrupting the antivortex and safety functions of the underlying drain cover plate.

Abstract: A pool drain safety cover system and method. The system includes a base defining at least one primary fluid aperture and a plurality of secondary fluid apertures. The cover also includes a grating extending across at least the primary fluid aperture for permitting the passage of drain water therethrough. The grating has at least an upper and a lower layer. The upper and lower layers are adjacent, and each is comprised of a plurality of spaced ribs for permitting the passage of fluid in a clearance space between the ribs.

Abstract: The present invention provides a filtered fluid dispensing system. The invention may replace the sprayer provided with the faucet assembly of a conventional sink and may, in certain embodiments, be adapted to selectively dispense filtered and unfiltered fluid.

Abstract: A cover for a housing—and particularly for a swimming pool drain—is lockable by a bridge having downwardly extending upper arms and upwardly extending lower arms that are drawn towards one another by a bolt passing through threaded upper and lower hubs for the arms and having a first thread along an upper substantially one-half length thereof and a second opposing thread along a lower substantially one-half length thereof, with the bridge also having bearing feet pivotally connected between adjacent facing ends of the arms to exert increasing pressures against inside surfaces of the housing as the arms are drawn towards one another in securing a rested cover for the housing into a lock position.

Abstract: There is described a filter device for placement in a utility sink in an aircraft for filtering particulate material, and for dissolving and/or absorbing fatty compounds from the waste fluid, which device comprises a basin (1) having one or more bottom outlets (2) and a filter element (3) located at the bottom of the basin, which basin (1) has a shape adapted to the shape of the sink. The bottom outlet (2) in the basin (1) is made up of a plurality of through-going apertures. The filter element (3) consists preferably of a porous plastic material or wire netting web coated or impregnated with an enzyme- and/or soap-containing compound.

Abstract: A disposable waste collector is formed by attaching the open end of a porous tubular bag to a rigid ring. The waste collector is positioned in a drain opening below the entry grate so that all fluids passing through the entry grate must pass through the tubular bag. Solid particles in the fluid stream are trapped in the tubular bag as waste water passes therethrough. The waste collector may be withdrawn and replaced when filled.

Abstract: A drain trap having a U-shaped portion with a removable filter arranged for visual inspection and disposal. The filter extends from the cylindrical insert through an access extension from said base portion positioned within a cylindrical base portion via an access extension therefrom.

Abstract: An improved floor drain for buildings, basements, exterior paved areas, and the like. The invention provides floor drain assemblies and check valves providing improved drainage performance, particularly where drainage is an irregular occurrence, and having unprecedented simplicity and reliability. Floor drains according to the invention comprise check valves adapted for disposition within floor drains, the check valves generally comprising spring-loaded stops or elastic diaphragms, either of which may be tailored for opening under a selected hydrostatic pressure. Use of the check valves according to the invention permits drainage through the drain conduit while preventing back flow from the drain of undesirable or unwanted gasses. Check valves according to the invention are preferably installable in existing drain structures, and easily removable for maintenance or replacement.

Abstract: An apparatus for straining fluid flow in a drainpipe, including a cylindrical body having a sidewall terminating with an integral closed end providing a means for engaging a drain plate, and, in opposition, an open end providing an integral uniform peripheral flange extending outwardly. The peripheral flange is adapted for a tight fitting relationship with a drain pipe inside surface; and, further, the side wall provided a plurality of apertures and a further plurality of surface protuberances extending outwardly from an exterior surface of the side wall.

Abstract: A grid drain for use in sinks without overflow drains comprising a solid cylindrical shell having an upper end and a lower end; the exterior side of the solid cylindrical shell has threads which thread from the lower end to the upper end; the upper end has an angulated flange arranged to seat in the drain opening in the sink; and the angulated flange has a top solid surface having a plurality of drain holes; wherein the size of the drain holes is large enough so that an air bubble will not form or will break immediately upon formation.

Abstract: A new article of a smooth, durable, flexible fiberglass screen mesh material. The screen is placed over and around an open conventional pop-up stopper, for preventing hair, and other debris from entering and clogging the drainpipes of bathtubs, lavatories and the like.

Abstract: An auxiliary strainer that covers the large openings of a stall shower drain strainer that will protect against the loss of earrings and small valuables in the shower as well as protect against broken toes and fingers of curious children. The strainer with approximately 160 holes of 1/8 inch plus a larger center resilient hole is snapped to a ball on the end of a weighted rod that drops into the existing shower drain strainer.

Abstract: A wastewater drain control for fluid compartments has a waste water discharge port in the bottom thereof and in communication with a vertical drain pipe. A valve seat element is in the pipe below the port and has an inclined annular valve seat surface and a center opening. A spherical valve element has a diameter greater than the center opening in the valve seat surface and is adapted to close the center opening to fluid flow when dwelling on the valve seat element above the center opening. A valve stem is rigidly secured by an upper end to the spherical valve element. The lower end extends downwardly through the center opening and terminates in a lower end. This lower end is connected to a linkage assembly which extends through a seal element in the vertical pipe and extends to a remote location accessible in the environment of the fluid compartment.

Abstract: A drainpipe filter kit for installation on a sink drain, the kit having the parts necessary to install a substitute drain pipe with a filter canister between the sink drain and the sink trap, the kit including a drainpipe segment with end fittings for connection to a sink drain and trap, and a removable canister connected to the pipe segment having a drain spigot and a disposable filter packet. The filter packet includes a dissolvable sanitation tablet, the canister being easily removed after draining for disposal and replacement of the filter packet.

Abstract: A locking grate for a floor sink includes a screen member having holes dimensioned to allow the passage of liquid but prevent the passage of solid waste and a mounting hole, a threaded member dimensioned to extend through the mounting hole, and a locking member which is adapted to be engaged by the threaded member. According to a presently preferred embodiment, the threaded member is a screw having a non-standard or atypical head which requires a non-standard or unusual screw driver. The locking member includes a tube which is orthogonally engaged by the screw and which has at least one rod slideably disposed therein. The tube and the rod are arranged such that when the screw engages the tube, the screw forces the rod to slide partially out of the tube. The end of the rod which extends out of the tube is preferably provided with a surface which frictionally engages the inner wall of the floor sink drain pipe.

Abstract: A drain structure for disposal with a pool or hot tub where suction or vacuum forces are normally present. The drain has interiorly a plurality of grating members having lower surfaces adapted to facilitate release of entangled hair. In certain embodiments, the grating elements are cantilevered from the inner wall of the drain and having tapered lower release surfaces. In another embodiment, the lower surfaces comprise share lower edges for severing entangled hair.

Abstract: A pool or spa filter comprising a filter unit having porous filter wall structure to pass pool or spa water into the filter unit interior, the unit having a suction outlet; a perforated cover plate in water-passing registration with the outlet; the filter unit and cover plate being endwise interconnected and blocked against endwise inadvertent disconnection.

Abstract: A washbasin drain assembly comprises a drain body which defines a drain passage connecting the interior space of the washbasin to the waste line and a drain plug in cooperative engagement with the drain body for selectively sealing the drain passage. A sieve is fitted removably in the drain body downstream of the plug relative to the direction of flow from the basin to the waste line.

Abstract: A drain guard, for use in sinks having a drain, a bottom wall and a side wall, wherein the drain guard includes a screen for holding debris away from the sink drain. A seal, which abuts sealingly against the sink side wall, is disposed between the screen and the sink side wall to prevent debris from passing between the side wall and the screen, the seal and the screen being fixed in a frame which holds the screen a predetermined distance from the sink bottom. The frame includes a pair of arched bands which are useful as handles for moving the drain guard into, and out of the sink. In addition, the arched bands of a sink installed drain guard support heavy pots and other utensils away from the screen.

Abstract: A sink stopper comprises a perforated strainer basket, a sealing member, an upwardly extending handle, and a downwardly depending locating stem. The locating stem comprises a base portion and two substantially parallel spaced-apart co-operating legs that are substantially rigid yet resiliently deformable towards each other. Each peripheral surface comprises an outwardly and upwardly sloped guide surface disposed at the bottom end portion thereof, an outwardly and downwardly sloped grate-contacting surface disposed at the top end portion thereof, and a grate-receiving notch disposed between the guide surface and the grate-contacting surface. The grate-receiving notch includes an upwardly facing catch surface shaped and dimensioned to catch on the grate in interfering relation therewith. The maximum width of the locating stem at the bottom end of the sloped grate-contacting surface is greater than the diameter of the central guiding aperture in the grate.

Abstract: A refuse-collecting drainpipe insert is a generally helical coil formed by a strip of rectangular cross section and having a bulge located axially generally centrally of the coil, and frustoconical end portions tapered oppositely from the central bulge of the coil, the strip at one end of the coil being formed as a hook and the strip at the other end of the coil being formed as a return bend.

Abstract: A drain trap having a T-shaped base portion with a removable filter arranged for visual inspection and cleaning. The filter has a flow-through inspection reservoir insert with a filter cap extending downstream therefrom.

Abstract: The floor drain comprises a drainage bowl (2) or outlet gutter with an upward facing inlet opening (4) and an outlet (5), comprises slots (9) or passageways having each a substantially vertical portion with a constant cross-section, and having each its entrance on a level with the inlet opening (4) and extends somewhat downwards and is adapted to be running to capacity by drainage of water from a floor.

Abstract: A retrofittable filterless drain separator has an outer housing with a spherical section and an inner holding area including an inner spherical segment which is positioned and spaced apart from the spherical section of the outer housing. The separator includes vane in an inlet portion thereof which serves to direct passing liquids against an inner spherical centripetal separator so that the flow path of all liquids together with any entrained solids in the flow path is directed along a curved path which forces separation of particulate material from the liquid. A passage in the centripetal separator section allows liquid to pass through and out of the drain while retaining the solid or particulate matter in the centripetal separator. A component allowing access disposed in the spherical section of the outer housing permits easy access to the internal surface of the centripetal separator to facilitate the removal of any entrapped solid or particulate matter.

Abstract: A combined sink strainer and scrub brush unit (10) with or without a sink stopper disc (14) is provided which seats into a garbage disposal inlet (31) depending from a sink bottom (30a). A horizontal strainer base (11) has a series of drain apertures (17) therein and a series of spaced brush elements (12) either molded with the base (11) or attached to the base and depending from the base (11). A handle (15) is attached to the base (11) for manual removal of the unit (10) from the disposal inlet (31) and for hand-manipulating the unit (10) to scrape/scrub foodstuff and other debris from dish plates, cooking pots, and sink surfaces into the sink (30) and disposal inlet (31). A rubber stopper disc (14) is mounted on top of base (11) for rotational and sliding movement thereon. Radial drain holes (18) in the disc (14) are alignable with the base drain apertures (17) in a drain "open" position and are offset therefrom in a drain "closed" sealing position.

Abstract: A drain trap apparatus is provided for preventing the passage of debris into a drain opening which includes a disposable filter and which allows complete drainage of the wastewater. The drain trap has an annular support member which is semi-permanently attached around the drain opening. A passageway extends radially through the support member so that water will be allowed to pass through the support member. A filter, preferably of a flexible plastic mesh material, is removably attached to the support member by a plurality of hook members, such as the hook portion of a hook and loop fastener.

Abstract: A suction fitting for use in a water circulation system, the fitting having a perforated body that is mounted to permit fluid flow through both front and rear perforated faces, and thereby minimize the possibility of complete blockage of the fitting by entrapped hair or skin. Operation of a circulating pump is controlled to prevent damage to equipment and property and also to minimize the possibility of serious personal injury or death. The suction fitting further includes a suction tube for connection to the pump, for circulating water in the tub or spa back through jets in the tub or spa, and a pressure sensor line connecting the water in the tub or spa to a water level sensor. The front face of the perforated body has a number of grooves, to provide fluid communication between the pressure sensor line and the suction tube, through one or more front-face perforations.

Abstract: An anti-vortex, flush-mounted floor drain for swimming pools consists of a main housing, which is in the form of a hollow cylinder of a first predetermined diameter A drain opening is located in the top of the hollow cylinder; and the edges of the top of the cylinder are mounted flush with the floor of the swimming pool. A downwardly sloped lip extends from the top edge of the main housing and terminates in a circular opening in the top of the main housing. A solid circular cover is centrally mounted in this opening in the main housing, and is movable toward and away from the opening in the main housing to vary the size of the water inlet from the pool between the edge of the circular cover and the edge of the opening in the main housing. A drain pipe is connected to the main housing for withdrawing water from the housing. The large circular cover at the center of the drain prevents a vortex from occuring as a result of the suction of water passing outwardly through the drain pipe in the drain housing.

Abstract: A plastic device using nylon thread mesh material as a trapping element to prevent clogging of traps and drain lines caused by loose hair or other objects dropped in or washed down the drain opening. The device includes an annular flange having a depending collar which fits into a section of tubing sandwiching the mesh material between the flange and tubing. The tubing is sized to fit into the drain opening and the mesh material is sized to extend beyond the edge of the flange to cover any peripheral opening between the tubing and drain opening and to provide a tab for easy removal of the device.

Abstract: A sink drain guard is formed of an annular sleeve of flexible, resilient plastic material having a central cylindrical annular wall portion connected at its bottom to an inwardly extending shoulder. The shoulder is provided on its outer perimeter with a peripheral outwardly facing annular groove adapted to receive a flat elastomeric washer encircling its outside. The annular cylindrical central portion is connected at its top to a plurality of outwardly flared segments defined by a plurality of slots extending through a portion of the central cylindrical section and being open at its top. The guard is adapted to be installed in the drain opening of a sink equipped with a garbage disposal unit with the shoulder portion and gasket seated in a shoulder in the drain structure. The slots provide for drainage of liquid from the sink while preventing entry therein of tableware, and the outwardly flared portions provide a gripping surface for removal of the guard from the drain.

Abstract: A decorative stopper is provided for fitting in the inlet of an existing garbage disposal unit located in a sink drain hole and provided with a sink flange. The stopper comprises a side wall defining a bore and carrying an external sealing member for releasably engaging the inner face of the bore of the existing sink flange, an upper flange extending radially outwardly from an upper end of the side wall for covering the upper face of the existing sink flange, a strainer member extending across the bore and a lower wall extending across the bore below the strainer member and including a plug member moveable between a sealing position and an open position in which fluid may drain through the stopper. A plug operating member extends upwardly from the plug member and through the strainer member to allow the plug member to be lifted to the open position.

Abstract: An improved structure of an elbow pipe having filter to filter waste material contained in polluted water. The filter is provided within a cup which is screwed tight to the bottom region of the pipe and can be easily unscrewed for the removal of the blocked waste material.

Abstract: A combined floor sink and strainer for removing solid particles contained in the fluid passing through it. The combined floor sink and strainer has a hollow substantially rectangular housing, a strainer basket for holding the solid particles or sediment removed from the fluid passing through the combined floor sink and strainer and a locating and support structure for locating and supporting the strainer basket within the housing. The support structure and strainer basket have perforations to permit the passage of liquid but prevent the passage of solid particles over a particular particle size. The housing has a removable lid with three inlets and an outlet in its lower portion and a locating and support flange surrounds the upper portion of the housing the permit the housing to be removably located in the floor.

Abstract: A retractable guard for use in combination with a sewage pipe leading from a flush toilet is provided having a plurality of prongs with hooked ends positioned within a cross section of the pipe. The prongs are connected to a piston which is slidable within a cylinder, perpendicular to the pipe. Flushing the toilet causes water to be directed in the cylinder which in turn partially retracts the prongs. Water may be diverted from the cylinder to wash accumulated debris from the prongs.

Abstract: A foreign matter trap for use in a drain such as a shower or sink drain in which water flows downwardly through a drain pipe, the trap having an element for removably positioning in the drain pipe including a downwardly extending longitudinal member, a plurality of layers of foreign matter catching members extending generally radially from the longitudinal member, each layer being formed of a plurality of spaced apart spicule members, the spicule members of each layer covering less than a complete cross-sectional circumferential area leaving a portion free for the flow of water therepast, the layers being arranged so that the spicule members in adjacent upper layers extend over and above the free cross-sectional areas of the next lower layer so that water may continue to flow through the drain even when the spicule members of any layer are completely closed by trapped foreign matter.

Abstract: A drain pipe assembly, which includes a S-shaped drain pipe having mounted on its orifice a cup-like filter plate and a strainer and having inserted therein a cleaning brush. The S-shaped drain pipe includes a bent pipe portion extending from a vertical end pipe portion to define therewith a first bent on its upper side and a second bent on its bottom side, wherein the second bent is arranged at a level much higher than the first bent so that impurities and mud carried by rain water can be retained in the bottom of the vertical end pipe portion and vermin can be prohibited from passing therethrough.

Abstract: A retractable guard for use in combination with a sewage pipe leading from a flush toilet is provided having a plurality of prongs with hooked ends positioned within a cross section of the pipe. The prongs are connected to a piston which is slidable within a cylinder, perpendicular to the pipe. Flushing the toilet causes water to be directed in the cylinder which in turn partially retracts the prongs. Water may be diverted from the cylinder to wash accumulated debris from the prongs.

Abstract: A shower strainer mounting assembly (10) comprises an elongated cast-in adaptor coupling (12) for being cast into concrete having a lower end portion (16) for receiving standard 2 inch pipe (24) and an upper portion end (18) with an inner diameter of at least 37/8 inches. A separate pan-mounting flange member (14) comprises a circular tubular portion (36) having a continuous round external surface of a size and shape for fitting snugly into the top of the cast-in adaptor coupling and an internal surface with a diameter of less than 3 5/16 inches but at least 2 11/16 inches in cross section and a flange portion (38) attached to the upper end of the tubular portion extending radially outward from an outer surface (40) thereof.

Abstract: A retractable guard for use in combination with a sewage pipe leading from a flush toilet is provided having a plurality of prongs with hooked ends positioned within a cross section of the pipe. The prongs are connected to a piston which is slidable within a cylinder, perpendicular to the pipe. Flushing the toilet causes water to be directed in the cylinder which in turn partially retracts the prongs. Water may be diverted from the cylinder to wash accumulated debris from the prongs.

Abstract: An all plastic floor drain including a rigid plastic connector body and a rigid plastic strainer plate that is received in an annular recess in the connector body. The strainer plate includes a plurality of positioning pins that extend from the lower surface thereof and the annular recess in the connector body includes a corresponding number of positioning apertures to receive the positioning pins. Preferaby, there is free movement between the positioning pins and the positioning apertures when the pins are first inserted in the apertures, but one of the other of the pins or the apertures is tapered so that there is an interference fit as the strainer plate approaches its final position relative to the connector body, to securely connect the strainer plate and the connector body and to provide a substantially flat upper surface level with the surface of the floor. The use of all plastic parts and the absence of metallic connectors avoids corrosion.

Abstract: A pair of spring loaded cylinders each supporting an upwardly projecting post mounted in a drain. A strainer is attached to the drain with the posts porjecting upwards through holes in the strainer. A disposable insert, having a hooked material such as VELCRO sheet on its lower surface, is mounted on a distal end of the posts. Foot pressure on a cover plate mounted on a top surface of the insert forces the VELCRO to contact the strainer and remove all impinged hair and debris.

Abstract: Apparatus and method for isolating and blocking articles flushed down toilets before they can get into and jam a main sewer line utilizes a threaded rod having a head for rotation thereof disposed on one end, a nut threaded onto the rod, a flat washer disposed next to the nut on the opposite side therefrom from the head, and a rubber washer disposed next to the flat washer on the opposite side therefrom from the nut. In a preferred embodiment, the rod is threaded into a threaded hole in a cleanout plug adjacent a toilet to be isolated and the nut tightens against the cleanout plug to compress the rubber washer to seal in sewer gases and fluids.

Abstract: A drainhole strainer plug comprising a raised central grating member, a concentric recessed trickle-down member, and a plug.

Abstract: A safety device for protecting ones' hands while stuffing waste material into the comminuting chamber of a powered disposer having its comminuting chamber aligned with a drain passage enclosed by a flanged sleeve depending from the sink basin through its drain opening and from which the powered disposed is suspended. An axially elongated plunger body of the safety device extends through the drain passage into the comminuting chamber while supported by its apertured cover plate resting on the flange of the sleeve thereby spacing the lower impaction end from the disposer cutter blades.