An applicator (200) having a feed opening (202) and a dispensing opening (201) situated opposite from the feed opening (202) for applying a sealing compound to a substrate, wherein the applicator (200) has a protruding blade (212) for smoothing the applied sealing compound, the blade (212) has a top side (228) and a bottom side (229), the bottom side (229) being situated adjacent to the dispensing opening (201), and the blade (212) has a right blade section (209) and a left blade section (210) situated opposite from the right blade section (209), the right blade section (209) and the left blade section (210) protruding laterally, and the blade (212) also having a front blade section (211) that protrudes in the distal direction, and the blade sections (209, 210, 218) being beveled in such a way that a right outer edge (220) is provided on the right blade section (209), a left outer edge (221) is provided on the left blade section (210), and a front outer edge (218) that joins the right outer edge (220) and the left outer edge (221) is provided on the front blade section (218), wherein the outer edges (220, 221, 218) lie in the plane of the bottom side (229), and the dispensing opening (201) is situated at a distance from the front outer edge (218).

An automated drywalling system for applying joint compound or plaster to drywall pieces. The system includes a robotic arm and a mudding end effector coupled at a distal end of the robotic arm, the mudding end effector configured to apply joint compound or plaster to a target surface. The system can further include a computing device executing a computational planner that: generates instructions for driving the mudding end effector and robotic arm to perform at least one mudding task that includes applying joint compound or plaster, via the mudding the end effector, to one or more joints between a plurality of drywall pieces, the generating based at least in part on obtained target surface data; and drives the end effector and robotic arm to perform the at least one mudding task.

The present invention relates generally to wall repair compounds such as joint compounds, spackling compounds, and the like used to repair imperfections in walls or fill joints between adjacent wallboard panels. Particularly, the present invention relates to such a wall repair compound that comprises a dust-reduction additive that reduces the quantity of airborne dust generated when the hardened compound is sanded. The dust-reduction additive also synergistically imparts water resistance and adhesion to the wall repair compounds to which it is added. More specifically, in one embodiment, the dust-reduction additive is an emulsion comprising colloidally-protected, wax-based microstructures comprising paraffin that is chemically encapsulated by polyvinyl alcohol.

A metal hand tool including a handle attached to a blade piece and method of construction. The blade piece includes a blade opposite an elongated tang. The handle is made up of two, welded, symmetrical handle halves, each handle half having an opening for receiving a hang hole piece and a notched distal end for forming a handle opening to receive the blade piece elongated tang. In an embodiment, the handle includes a curved distal end accommodating a curved welded connection between the blade piece and the handle. The hand tool further includes a hang hole piece configured for placement through the hang hole openings in the handle and for welded connection to the handle. In an embodiment, the elongated tang includes a hang hole opening through which the hang hole extends. Some embodiments further include one or more tang guide pieces welded to the interior of the handle.

The present invention relates generally to the field of wall and surface repair tools. The device has an angled member or plate with a housing mounted on the angled member. The housing has one push tab or plunger, an interior space, and a grip area. The interior space, angled member, and a continuous opening are in fluid communication and allow for the finishing material, such as spackle, to flow through the device and onto the damaged wall or surface.

A mechanism to secure the base of a pole to the lid of a flatbox finisher is provided. The mechanism utilizes at least one spring grasping device on the lid of the flat box finisher to grasp and secure the base of the pole. The grasping mechanism is depressed and grasps a generally flat rectangular edge of the base of the pole and secures the base of the pole to the lid of the flatbox finisher by friction. In particular, as the base having the pole of the flatbox finisher is first slid over the grasping mechanism, the grasping mechanism is first pushed downward. After the base slides over the grasping mechanism, the grasping mechanism springs back upward and locks the base of the pole into place on the lid of the flatbox finisher.

A hand tool is provided for the application of joint compound on wall board, a planar blade affixed to a handle. The blade has a concave arcuate working edge, wherein the concave arcuate curve extends the entire length of the working edge to each corner of the working edge. The concave arcuate working edge to may be used to apply a self-featured layer joint compound over drywall tape on planar butt joint or an inside corner joint. The blade is laterally flexible.

A surface repair tool for repairing defects in surfaces includes a handle with an applicator blade extending from one end of the handle and a sanding device extending from the opposite end of the handle. The handle includes a receptacle into which is removably received a container of repair compound. The applicator blade includes an application surface and a flow passage that has an inlet and an orifice formed through the application surface. Squeezing the container causes repair compound in the container to flow through the flow passage of the applicator blade and out of the orifice where it is dispensed onto the applicator surface to be spread on a surface needing repair. Once the repair compound dries, the sanding device is used to sand the repair compound to a desire finish.

A method of biasing a drywall corner flusher and a drywall corner flusher biased in accordance with the method. The method involves moulding a V shaped corner flusher body from a resilient material. The corner flusher body having a pair of blades each having a common edge and a remote edge, with the pair of blades being connected along the common edge. The corner flusher body is moulded with an integrally moulded undulating rib extending from the remote edge of one blade of the pair of blades to the remote edge of another blade of the pair of blades biasing the remote edge of each of the pair of blades outwardly.

This invention relates to the construction of a smoothening pad for an applicator where, in order to make the smoothening pad more resistant to wear, a more rigid silicone is used for forming it and a bolster made of a softer polymer is provided in the front portion of the smoothening pad so as to make the front portion and the face of the smoothening pad more elastic, wherein the bolster is covered with a layer of a polymer that is more rigid than the material used for forming the body, or alternatively, a gap or chambers are formed in the front portion that in turn may be divided into sub-chambers by means of partitions. This way, the smoothening pad is provided with a face that has the required degree of elasticity but is more resistant to wear.