Other

Certainteed Gypsum and Ceiling Manufacturing Inc.

Timothy Smythe

Douglas J Wambaugh

Douglass Wambaugh

Michael Lorenzen

A re-moistenable adhesive-coated drywall corner trim piece having an elongated semi-rigid core piece with a right and left flange, where the semi-rigid core piece has a centerline along which the flanges meet forming a hinge that can be bent and re-bent to any angle any number of times. The piece can also include a step running longitudinally along each of the flanges that can be located between the centerline and the flange edges so that the flanges change from a thicker portion toward the centerline to a thinner portion toward the edges making the piece boxable (capable of being wet mudded simultaneously on both sides without an intermediate drying step). Flanges can be curved slightly inward for perfect bonding.

Drywal corner trim material with adhesive

Drywall corner trim material with adhesive

An improved corner trim material construction such that a pair of flanges of the material, normally approximately perpendicular to one another, may 'flex', or change angle, relative to one another and the apex, or nose, of the material allowing the flanges to lay flat against the wall surface adjacent the corner onto which they are being bonded or attached. The present invention can use a single, twin or tri-hinge created by a groove running end-to-end to allow flexing.

Drywall finishing material with twin-hinge construction

A drywall hopper assembly that contains a double blade that can apply drywall mud to both interior and exterior drywall corners with no blade change. A zigzag blade can contain two grooves, one for interior corners and one for exterior corners. With this blade arrangement, an operator can quickly move from one type of corner to another without using multiple tools, multiple blades or hand application methods to apply mud. The present invention can contain a pliable release port to present mud equally to an interior or an exterior corner. There can be such a port on both the top and bottom of the blade so that mud is smoothly applied as trim moves through the hopper or the hopper is moved along the trim.

Drywall mud hopper for inside and outside corners

A drywall trim application device that can hold a large role of drywall flex corner trim material and, as the material is being dispensed, pre-crease or form the material for use on an inside or outside corner, or any angle within the range of the trim material, apply a mastic material (drywall mud, adhesive or any other bonding medium) to the flex trim material, and cut the material at any desired length automatically. Measurements may be either input by hand or downloaded from an electronic measurement tool into this device. This invention can generally store multiple measurements such as length and angles, measure the length of flex trim material as it is dispensed from the device, crease the material, apply predetermined amount of mastic, and automatically cut the flex trim material to each length previously input.

Drywall trim auto-folder, mastic applicator and cutter

A drywall corner piece with flange surfaces forming a near right angle forming a cup for fitting over drywall corners where the web sections of the flanges have at least one strain relief channel allowing the piece to flex to different angles.

Expandable drywall corner piece

A modification to the box packaging typically used to store and transport flex trim material rolls or tape that allows the installer to hold and control the package while dispensing the flex trim material or tape directly from the box and placing it directly onto the corner being finished. This is achieved by a combination of perforations and creases which, when pushed in, form a handle on at least one side of the box for grasping the package and a separate hole on the edge of the box through which the flex trim is pulled out of the box and hence dispensed.

Flex trim container with handles

A drywall trim application device that can hold a large role of drywall flex corner trim material and, as the material is being dispensed, pre-crease or form the material for use on an inside or outside corner, or any angle within the range of the trim material, apply a mastic material (drywall mud, adhesive or any other bonding medium) to the flex trim material, and cut the material at any desired length automatically. Measurements may be either input by hand or down loaded from an electronic measurement tool into this device. This invention can generally store multiple measurements such as length and angles, measure the length of flex trim material as it is dispensed from the device, crease the material, apply predetermined amount of mastic, and automatically cut the flex trim material to each length previously input.

A drywall tape or trim dispensing tool of the type similar to those sold under the name BAZOOKA with an elongated handle and a tape or trim dispensing head. The head can contain a blade coupled to a power mechanism such as a spring, hydraulic or electric energy source where the blade can be placed into a cocked position by a cocking mechanism and then triggered by a pull on a remote trigger located on the handle. After the device is cocked, the user can dispense tape or trim to a desired length and then cut it exactly by a simple trigger pull.

Spring powered sliding drywall taping tool with auto cutter

A boxable drywall corner trim that can include an elongated semi-rigid member that forms a pair of flanges joined at a grooved hinge along a centerline. Each of the flanges can have a thinner part and a thicker part joined at a step that is approximately parallel to the centerline a predetermined distance from the centerline. The thicker part of the flanges can form a protruding nose member that makes the piece boxable by preventing the cross-over of wet drywall mastic or mud from one flange to the other. The thinner portion of the flange may optionally be perforated with a pattern of punched holes of any configuration throughout the flange assembly. The piece can have a wall-facing paper or other fibrous layer of material that has a tacky adhesive on its wall-facing side. The adhesive can be in a pattern of dots, ridges, lines or any other pattern, or the adhesive can be continuously coated on the surface. This tacky adhesive allows the piece to be applied to the corner, moved, removed and re-applied if necessary.

Boxable mesh adhesive drywall corner trim

A drywall tape or corner material dispenser that allows dispensing of the material directly from the box it is supplied in. The invention can contain a pair of parallel arms that grip the box and a strap that runs between the ends of the straps to close around the box. The strap can be fabric or other material and can be attached using hook/loop material like VELCRO. A handle on the other end of the arms can be used to grip the device and feed the material. The handle can have spring members top and bottom to further grip the box.

Box dispenser

A drywall tool for dispensing flexible trim material such as FLEXTRIM and ULTRALITE products, or any other flexible trim material, containing a head attached to an elongated handle, a drive wheel attached to the head for pulling the trim material from a roll, at least one roller for pressing the trim material into an interior or exterior corner and a cutter for cutting the trim material. A pair of rollers can be attached to a ferris wheel assembly to be swung into position for interior or exterior corners. The interior roller can resemble a pizza knife, and the exterior roller can be cylindrical of varying diameter shaped like two intersecting cones.

Drywall bazooka for application of flexible corner bead

A drywall hopper assembly that contains a double blade that can apply drywall mud to both interior and exterior drywall corners with no blade change. A zig-zag blade can contain two parallel grooves, one for interior corners and one for exterior corners. With this blade arrangement, an operator can quickly move from one type of corner to another without using multiple tools, multiple blades or hand application methods to apply mud. The present invention can contain a pliable release port to present mud equally to an interior or an exterior corner. There can be such a port on both the top and bottom of the blade so that mud is smoothly applied as the operator moves the tool along the seam.

Growing community of inventors

Bend, OR, United States of America

Timothy Smythe