A form for forming a void or an architectural feature of a predetermined configuration in a moldable forming composition is disclosed. Embodiments of the invention provide an adjustable form body having first and second sides, said form body configurable between a first substantially planar position and a second non-planar position. In some embodiments, the form comprises a surface coating. A form body according to example embodiments of the invention has a plurality of grooves.

Disclosed is a drainage system (1) comprising: at least one water receiving unit (20) having: a water receptacle (22) for receiving water from an adjoining surface of an upper stratum; and at least one drainage unit comprising: a body; wherein: the water receptacle (22) can be integrated into the upper stratum; the drainage unit can be provided and oriented, at least in part, in a central stratum at a distance under the surface, with respect to its uppermost face, such that water flowing out of the water receiving unit (20) can flow into the drainage unit through a connection between the water receptacle (22) and the body; and the connection can be maintained irrespective of a change in this distance. Also disclosed are drainage units and methods.

A floor drain includes a channel body defining a longitudinal direction and including two outflow channels which extend parallel to each other, each having a channel bottom and two channel walls. A connecting bar extends horizontally and connects the upper mutually facing longitudinal edges of the channel walls. An outflow opening interrupts the connecting bar and the channel walls directly connected thereto. An outflow fitting is arranged below the channel body and surrounds the outflow opening in the circumferential direction. At least one slat-like connecting element is detachably mounted on the channel body and is designed in such a way that it continues the connecting bar and the channel walls in the region interrupted by the outlet opening.

A frame (4) is designed to be inserted into a channel body (3) of a floor drain (1), the channel body forming an outflow channel (8) and having an outflow opening (9). The frame includes at least substantially vertically extending side walls (11) arranged in the form of a frame and which together form a receiving opening (12). An at least substantially horizontally extending frame flange (13) adjoins the upper edges of the side walls (11) and surrounds the receiving opening (12) in a frame-like manner. Projections (14) projecting into the receiving opening (12) are provided on opposite side walls (11) and form a receiving framework to receive and support a cover (5) to be inserted into the frame (4) from above, characterized in that the projections (14) are provided in the form of indentations.

A fluidic coupler for fluidically communicating a hose with a trench drain in a support surface comprises a series of walls arranged to form a cavity and arranged for insertion into the trench drain, and a hose coupler supported on one of the walls for fluidically connecting a hose so that liquid discharged therefrom is released into the cavity. The cavity is open at the bottom of the fluidic coupler so as to release the liquid to the trench drain. The fluidic coupler includes stabilizing feet supported on opposite walls which are parallel to sidewalls of the trench drain. The feet include a pair of distinct feet located at spaced positions on a carrying one of the opposite walls, and on either side of the hose coupler.

A substantially polygonal drainage channel system is provided. The drainage channel can include a substantially polygonal cross-section that can have rounded corners or edges. More specifically, the cross-section of the drainage channel can be formed to resemble an “upside-down pear.” The drainage channel can have a cross-sectional shape that can be created by first placing two circles of different diameters on top of one another. The “top” circle can be larger than the “bottom” circle. The two circles can then be connected with two tangential lines, one on each side, resulting in a shape in which a top of the drainage channel tapers down toward a bottom of the drainage channel. The drainage channel can also include ribs, drainage slots, and a connector-check valve. A method for installing a drainage channel is also provided.

The invention relates to a locking element (11) for securing a grate (3). The locking element (11) comprises a spring element (113) kept between a cover element (111a) and a spring support element (117). The spring support element (117) is displaceable relative to the cover element (111a) by means of an actuating element (115). The displacement of the spring support element (117) causes a movement of at least one of the ends (113a, 113b) of the spring element (113) relative to the cover element (111a).

A channel for fluid flow comprising a first unit and a second unit connected to each other. The first unit comprises a first u-section having a first open top side, and a first grate extending across the first open top side and removably attached to the first u-section. The second unit comprises a second u-section having a second open top side, and a second grate extending across the second open top side and removably attached to the second u-section. The first grate defines a negative semicircular distal end having a first diameter and a first center point. The second grate defines a positive semicircular proximal end having a second diameter and a second center point. The first center point is coincident with the second center point and the first diameter and the second diameter are sized such that the positive semicircular proximal end fits within the negative semicircular distal end.

A drainage channel support assembly including a support member adapted to support drainage channel, a pair of pegs arranged to anchor the support member to the ground, and a pair of coupling elements mounted to respective of each of the pair of pegs. The coupling arrangements are configured where on anchoring of the support member to the ground via respective of the pair of pegs either: in a first install mode, the coupling arrangement contacts an upper surface of the support member with the associated peg penetrating the ground along substantially the full length of the peg; or, in a second install mode, the coupling arrangement couples to a fitting which contacts the upper surface of the support member, the coupling arrangement contacting a lower surface of the support member for suspension of the drainage channel above the ground.

A drainage system (1) comprising: at least one water receiving unit (20) having: a water receptacle (22) for receiving water from an adjoining surface; a first neck piece (24) which can be connected to the water receptacle (22) and provided such that water can flow out of the water receiving unit (20) through an opening (26) of the first neck piece (24); and at least one water drainage unit (40) for draining the water, comprising: a pipe body (42); and a first opening (46b), provided on the pipe body (42), for receiving the water in said pipe body (42); wherein: the water drainage unit (40) can be provided and oriented under the surface such j that the opening (26) of the first neck piece (24) and the first opening (46b) of the pipe body (42) can be connected and the water flowing out of the water receiving unit (20) can flow into the water drainage unit (40). Also disclosed are drainage units and methods.