Currently, a drywaller on the ground physically lifts the 100+ pound sheet of drywall up to the person on the scaffold, who then has to lift/pull the 100+ pound sheet of drywall up onto the scaffold to hang on the wall. Both people must use their arms, shoulders and back to lift the drywall, and the man on the scaffold sometimes uses his foot to slide the drywall up onto the scaffold. The DSR eliminates this unsafe lifting procedure by providing a rolling mechanism to roll the sheet of drywall instead of lifting. It takes most of the heavy weight of the drywall off the workers, making it safer and easier, which may reduce the number of arm, shoulder, back and foot injuries from manually lifting the heavy sheet of drywall from the ground up onto the scaffold. It is an inexpensive way for drywall companies to more likely than not reduce the number of workplace injuries and worker's compensation claims.

A knob is screwable to a tile spacer-leveler for together defining a tile alignment device. The knob comprises (i) a body, (ii) elastically-deformable connectors on the knob body, (iii) first and second fixing elements comprising respective threaded slots, supported by the connectors and arrangeable in a first arrangement wherein the threaded rod of a tile separator can be inserted into and removed from the threaded slots without screwing in a second arrangement in which the rod insertion and removal takes place only by screwing, (iv) a blocking element separated from the knob body for elastically deforming the connectors to change the arrangement of the first and second fixing elements to (a) insert the rod between the threaded slots of the first and second fixing means without screw-tightening thereof, (b) screw the knob to the threaded rod with the fixing elements in the second arrangement to align the tiles, and (c) remove the threaded rod without screwing.

An automated gypsum board installation machine is a device for automatically positioning, installing, and fastening gypsum boards. The device includes a first extendable support member and a second extendable support member as well as a board-fastening assembly that is slidably engaged in between. A quantity of gypsum boards is held within a board-containing receptacle and a gypsum board may be moved into position by at least one adjustable board-retaining device. Once the gypsum board is positioned, at least one fastener-installing device is able to secure the gypsum board in place via fasteners. The at least one fastener-installing device is mechanically coupled to at least one fastener receptacle. The device may be controlled automatically or manually via a control unit and a wireless receiver.

A device for leveling and aligning tiles and method for leveling and aligning tiles are disclosed. In one embodiment, the leveling device includes a body and two spaced and parallel strip members extending transversely from the body. Each of the spaced and parallel strip members extend to the front and rear of the body. Two opposing lateral open windows are formed in the body. A breakaway section is defined along the body. A wedge device is provided for penetrating one or more of the two opposing lateral open windows and exerting a force on the tiles for leveling them relative to each other.

Floor panels are shown, which are provided with a mechanical locking system comprising tongue and grooves provided with protrusions and cavities which are displaceable in relation to each other and configured such that the protrusions can obtain a vertically unlocked position where they match the cavities and a vertically locked position where the protrusions overlap each other.

A tile aligning and lippage tuning system that uses a single piece base and strap which is designed to break away from the base when sufficient pressure is applied and is also designed to stretch along a thin wall region before separation of the strap from the base occurs.

A lifting cart for assist in building construction processes using precast wall panels can include a panel handling mechanism coupled to a movable vehicle. The panel handling mechanism can include a clamping mechanism, a rotational mechanism, a linear mechanism, and a tilting mechanism. The movable vehicle can include two sets of wheels configured to move the vehicle in perpendicular directions. The lifting cart can handle the precast wall panels, from a wall panel package delivered to the construction site to the final location of the wall panels between beams of the building frame.

Floor panels are shown, which are provided with a mechanical locking system comprising tongue and grooves provided with protrusions and cavities which are displaceable in relation to each other and configured such that the protrusions can obtain a vertically unlocked position where they match the cavities and a vertically locked position where the protrusions overlap each other.

A wall and ceiling panel system which utilizes a concealed resilient beam for securing a panel to a wall or ceiling structure is disclosed. A wall and ceiling panel system having features of the present invention can comprise a panel configured for releasable attachment to a latching assembly. The latching assembly can comprise a resilient beam dynamically secured to a base bracket so as to allow the resilient beam to deflect relative to the base bracket during the panel installation and removal process. The panel can comprise a keyed flange having at least one locking slot configured to mate with the resilient beam, with the panel becoming secured to the latching assembly once the panel's key flange is mated with the resilient beam.

A device for leveling and aligning tiles and method for leveling and aligning tiles are disclosed. In one embodiment, the leveling device includes a body and two spaced and parallel strip members extending transversely from the body. Each of the spaced and parallel strip members extend to the front and rear of the body. Two opposing lateral open windows are formed in the body. A breakaway section is defined along the body. A wedge device is provided for penetrating one or more of the two opposing lateral open windows and exerting a force on the tiles for leveling them relative to each other.