A method of texturing a wall or ceiling with non-acoustical joint compound by providing a collapsible bag having an opening at its top and is adapted to contain non-acoustical joint compound for forming a textured coating on the wall or ceiling and providing a spray nozzle having a low pressure input port, a joint compound suction port attached to the opening at the top of the collapsible bag, and an output port for spraying the non-acoustical joint compound. A low pressure stream of air from an air gun attached to the low pressure input port urges a small quantity of the non-acoustical joint compound to be sprayed out of the spray nozzle when the bottom of the collapsible disposable bag is raised above its top to either allow or force the joint compound to flow into the suction port and into the interior of the spray nozzle.

A method of texturing a wall or ceiling with non-acoustical joint compound by providing a collapsible bag having an opening at its top and is adapted to contain non-acoustical joint compound for forming a textured coating on the wall or ceiling and providing a spray nozzle having a low pressure input port, a joint compound suction port attached to the opening at the top of the collapsible bag, and an output port for spraying the non-acoustical joint compound. A low pressure stream of air from an air gun attached to the low pressure input port urges a small quantity of the non-acoustical joint compound to be sprayed out of the spray nozzle when the bottom of the collapsible disposable bag is raised above its top to either allow or force the joint compound to flow into the suction port and into the interior of the spray nozzle.

An automated device designed to move bearing against a construction panel, includes a frame carrying a tool designed to perform at least one mechanical operation on the construction panel, the automated device including at least one suction body designed to hold the automated device against the construction panel, and at least one system for initiating the movement of the automated device along the construction panel. The automated device includes at least one control unit designed to control at least the system for initiating the movement of the automated device according to at least one item of data relating to the position of a support of the construction panel.

An automated device designed to move bearing against a construction panel, includes a frame carrying a tool designed to perform at least one mechanical operation on the construction panel, the automated device including at least one suction body designed to hold the automated device against the construction panel, and at least one system for initiating the movement of the automated device along the construction panel. The automated device includes at least one control unit designed to control at least the system for initiating the movement of the automated device according to at least one item of data relating to the position of a support of the construction panel.

A tool having two adjacent blades, for working fluent materials such as cement, plaster, and epoxies in corners and other angled areas, is shown and described. Each blade is angularly adjustable with respect to an included angle defined between the two blades. The tool may have right and left blade portions pivotal along abutting or adjacent edges, and a linkage including a releasable clamp to establish and secure desired working angles between the right and left blade portions. The tool has two pivot axles, one for supporting each of the right and left blade portions.

A tool is shaped for working a mud patch in a shower enclosure. The tool has front and rear edges with sections angled relative to each other to allow easily contacting angled edges of the walls of the shower enclosure.

An adjustable clamping tool clevis apparatus includes a clevis body having a clevis lug, with a clevis aperture, extending from a tool end of the body and an elongated handle receiver extending from a handle end of the body. A clamp lug with a clamp aperture is received on a fastener extending through the clevis lug and clamped against a tool lug of a concrete finishing tool to secure the tool at a selected angle to an elongated handle secured to the handle receiver. The clamp lug engages a surface of the clevis body to reinforce the connection of the apparatus to the tool.

A knife that includes a blade, a handle affixed to an end of the blade and a screwdriver bit fixed to the handle and moveable between an extended position beyond the base of the handle and a retracted position in which the screwdriver bit is arranged completely within the opening of the handle.

The invention is hand tool and methods of use therefor for removing excess mastic and other debris from spacing between tiles. The device has a polygonal body, with a single projection extending from each side. Each projection has a different width and/or length, and is sized to fit in the spacing between adjacent tiles. Methods of installing and/or renovating and/or repairing tile with the hand tool are also disclosed.

The invention is hand tool and methods of use therefor for removing excess mastic and other debris from spacing between tiles. The device has a polygonal body, with a single projection extending from each side. Each projection has a different width and/or length, and is sized to fit in the spacing between adjacent tiles. Methods of installing and/or renovating and/or repairing tile with the hand tool are also disclosed.