Abstract:
A floor drain valve (10) in the form of a flapper valve, which includes a pressure relief conduit (34) to equalize pressure across the valve and permit unrestrained draining of fluid through the valve. The pressure relief conduit (34) is equipped with a valve member (30) which opens upon a predetermined pressure on the downstream side of the valve (10), and may further comprise a ball valve (24) to ensure that gas can escape through the conduit but liquids are prevented from it. The valve (10) may be fixed into a drain pipe by means of an expansion ring (80, 82, 84)
Abstract:
An apparatus for preventing reverse flows in a drainage is disclosed. In this apparatus, a floating device (41) and a reverse flow preventing device (54) act mutually in opposite directions owing to the floating force and the water pressure, and thus the bottom of the round body (20) of the apparatus is automatically opened and closed, so that the drainage can efficiently work, and the waste water and the draining water with foul odors can be prevented from flowing reversely. The apparatus for preventing reverse flows of waste water according to the present invention includes a round body (20) to be installed in a drain hole (60). A guide member (30) is installed on a second filtering net (25) of the top of the round body (20), and has a guide (31) at the center of it. An openable/closable device actuating member (40) is insertingly installed on the guide member (30), for moving up and down along the guide (31) owing to the floating force and the self-gravity. An openable/closable member (50) is installed on the guide member (30), for causing an air-tight sealing part to be opened and closed by being oppositely interlocked to the openable/closable device actuating member (40).
Abstract:
The surfaces (33) of the plate in which the gully is sealed are prolonged on all sides by glass fibre meshes (40). These form a composite with the adjacent tiled floor, thereby ensuring excellent adhesion of the glued or mortared tiles. In a preferred embodiment, the plate can be further anchored in the pavement by means of welded wire meshes (41).
Abstract:
A drain or ducting adjustment system may include a plurality of shims to elevate or space a cover from a flange or base portion of the drain or ducting. Each shim may have a recess proximate its top end to receive the cover or a higher shim and engagement means such as a lip or threading to receive the base portion or a lower shim. Shims may be of various heights. Additionally, one or more shims may allow for an angled offset between the recess and lip, in the event that the base portion of the drain or ducting is not parallel to the ultimate substrate height. Preferably, the base of the recess and lip are generally parallel to their respective end surfaces and the recess and lip are generally cylindrical such that adjacent shims may be rotationally adjusted relative to one another to achieve a desired offset angle.
Abstract:
Adaptor assemblies (10) are detailed. Preferably for connecting automatic pool cleaning apparatus to retum lines of swimming pool water-circulation systems, the assemblies (10) utilize spurs (26) that may affirmatively grip, or cut or gouge into, the return lines (P) to retain the adaptors (10) in position. Releasing the adaptors (10) may occur with use of a release line (42) which retracts the spurs (26) when activated. Avoiding release of the spurs (26) through rotation of the assemblies (10) allows rotation for other purposes as, for example, to connect the device to a hose or other apparatus. A bellows (46) or other assembly additionally may be included with the assemblies to facilitate their sealing against walls (S) or other surfaces in which the return lines (P) are embedded.
Abstract:
A fluid collection system having an island (20) with a central collection vessel (22, 23, 25) including a splash pad (42) and a fluid collecting surgical drape (52) with a fluid dams (90).
Abstract:
The drainage device has a drainage chamber (14) solidly cast into a concrete slab (10). A cylindrical insert (20) in the form of a disc rotatable about the chamber axis is fitted in the concrete slab. A square frame (30), rotatable in a cylindrical component (31), is also fitted in the disc to take a grid. When the flags are relaid, the square sides of the grid frame may be set parallel to the flag joint lines by rotating the frame. As there is an eccentric inner cylinder (24) to take the cylinder (31) formed at the cylindrical insert (20), it is however also possible to cause the square sides of the grid to coincide with the co-ordinates of the flag joints by rotating the cylindrical insert in the concrete slab.
Abstract:
A drain or ducting adjustment system may include a plurality of shims to elevate or space a cover from a flange or base portion of the drain or ducting. Each shim may have a recess proximate its top end to receive the cover or a higher shim and engagement means such as a lip or threading to receive the base portion or a lower shim. Shims may be of various heights. Additionally, one or more shims may allow for an angled offset between the recess and lip, in the event that the base portion of the drain or ducting is not parallel to the ultimate substrate height. Preferably, the base of the recess and lip are generally parallel to their respective end surfaces and the recess and lip are generally cylindrical such that adjacent shims may be rotationally adjusted relative to one another to achieve a desired offset angle.
Abstract:
A valve assembly (10) is to be used in conjunction with a tubular member having an internal surface surrounding a passage into which the valve assembly is to be sealingly inserted. The valve assembly includes a tubular body (25) having a longitudinal passage and an outer surface to be located adjacent the internal surface. A seal (29) is mounted on the outer surface to engage the internal surface to sealingly connect the tubular body with the tubular member. A movable valve member (33) is movable between an open position providing for the flow of water from an upstream end to a downstream end of the passage of the tubular body and a closed position closing the passage. Resilient means, such as a spring (34) urges the valve member to the closed position. The resilient means is configured to provide for displacement of the valve member toward the open position when pressure beyond a predetermined pressure is applied upon the movable valve member.