A core form device including a circular plate and a plurality of bendable arms extending from the circular plate which when bent about the circular plate form the core form device.

A system includes a lead-sleeve coupled to a platform. The platform attaches to a sheet metal having alternating peaks and valleys, and the platform includes a block-out component that conforms to a valley of the sheet metal. The system also includes an indicator system coupled to a cap of the lead-sleeve, where the indicator system protrudes through the concrete after the concrete is poured and solidified around the lead-sleeve.

A core form device including a circular plate and a plurality of bendable arms extending from the circular plate which when bent about the circular plate form the core form device.

A drain has a cup with a fluid outlet to be connected to a conduit, wherein the cup accommodates a water trap. The cup has an axial channel along the circumference, the channel is open upwards and limited by a bottom, a channel wall and a cup wall. The drain further has a circumferential drain wall adapted to fit into the channel, whereby the drain wall is arranged axially movable in the channel, a casting framework arranged releasable around the outer circumference of the drain wall, the framework has a radial extension, and the drain wall has an outward radial flange at an upper end, the radial extension of the flange is equal or less than the radial extension of the framework. A method and a kit of parts for installing such a drain are also disclosed.

A roadway coverplate for an assembly of an inductive charging device for inductively charging a motor vehicle, may include a main body and a cover. The main body may have an upper side for parking a motor vehicle and a lower side facing away from the upper side. The main body, on the lower side, may include a depression configured to receive the assembly. The cover may cover the depression and may, outside the depression, bear on a bearing portion of the lower side. The cover may be coupled in a force-fitting manner to the lower side in the bearing portion and may be configured to conjointly support a load acting on the upper side.

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.

A keywell form retention assembly includes post that having a bottom end and a top end. The post has a front side and a back side. A plurality of mounting holes extends through the front and back sides. The mounting holes receive fasteners to mount the post to a cement form. A sleeve is attached to the top end of the post. An arm has a first end and a second end. The arm extends through the sleeve and is movable forward or rearward through the sleeve. A leg is attached to and extends downwardly from the arm adjacent to the first end. An anchor plate is attached to the leg. The anchor plate has a mounting aperture extending therethrough to receive a coupler to engage a panel. The anchor plate retains the panel such that that panel abuts and stabilizes a keyway form.

A sleeve for forming a channel through a concrete slab is described herein. The sleeve includes a sleeve body with top and bottom ends extending along a longitudinal axis, wherein the top end is wider than the bottom end. The sleeve includes an attachment flange attached to the bottom end that extends laterally outward with respect to the longitudinal axis. The attachment flange may be secured to a concrete form. An alternative sleeve has an attachment mechanism protruding from the first end of the sleeve body for facilitating the attachment of the sleeve body to a concrete form. In some embodiments, the sleeve can also include a removal mechanism disposed at the second end of the sleeve body to facilitate removal of the sleeve body from the concrete slab. Various sleeve configurations are described, some of which are reusable and some of which are one-time use only.

A keywell form retention assembly includes post that having a bottom end and a top end. The post has a front side and a back side. A plurality of mounting holes extends through the front and back sides. The mounting holes receive fasteners to mount the post to a cement form. A sleeve is attached to the top end of the post. An arm has a first end and a second end. The arm extends through the sleeve and is movable forward or rearward through the sleeve. A leg is attached to and extends downwardly from the arm adjacent to the first end. An anchor plate is attached to the leg. The anchor plate has a mounting aperture extending therethrough to receive a coupler to engage a panel. The anchor plate retains the panel such that that panel abuts and stabilizes a keyway form.

A donut-shaped component is set around an end of a pipe and both are cast into a concrete slab. Removal of the donut after the concrete has cured leaves an annular recess in the concrete slab around the pipe, which remains in the concrete. Donuts used at both ends of the pipe result in two annular recesses in the concrete, one at each end of the pipe. A cover can be used on the top donut. Further piping connections are made in the annular recesses. The use of firestopping may be avoided, and water leakage through the slab may be eliminated.