Abstract: A hand-held drive cleat tool for the forming of sheet material such as drive cleats. The tool has a first handle; a second handle pivotably coupled to the first handle at a handle pivot; the handle pivot having a handle pivot axis; an inner jaw coupled to the first handle; the inner jaw having an inner jaw cutting edge substantially triangular in cross section in an inner jaw plane parallel to the handle pivot axis; an outer jaw coupled to the second handle, the outer jaw having an insert surface beveled in a cutting plane orthogonal to the inner jaw plane; the outer jaw having a surface defining an outer jaw cutting edge adjacent which the inner jaw cutting edge passes; and wherein rotation of the second handle relative to the first handle rotates the inner jaw relative to the outer jaw.

Abstract: A hand-held drive cleat cutter-notcher for the cutting and/or notching of sheet materials, particularly drive cleats. The device in one example: a first handle; a second handle pivotably coupled to the first handle at a handle pivot; the handle pivot having a handle pivot axis; an inner jaw coupled to the first handle; the inner jaw comprising an inner jaw cutting edge substantially triangular in cross section in a plane parallel to the handle pivot axis; an outer jaw coupled to the second handle, the outer jaw having an insert surface beveled in a plane orthogonal to a cutting plane orthogonal to the pivot plane and orthogonal to the handle pivot; the outer jaw having a surface defining an outer jaw cutting edge adjacent which the inner jaw cutting edge passes; and wherein rotation of the second handle relative to the first handle rotates the inner jaw relative to the outer cutting jaw.

Abstract: A duct plug for use with a duct opening of a heating, ventilation or air conditioning duct system comprises a first frame member, a second frame member, and a filter member disposed between the first frame member and the second frame member. The first frame member is releasably coupled to the second frame member.

Abstract: A duct plug for use with a duct opening of a heating, ventilation or air conditioning duct system comprises a first frame member, a second frame member, and a filter member disposed between the first frame member and the second frame member. The first frame member is releasably coupled to the second frame member.

Abstract: The apparatus disclosed herein serves as a termination point for a connection of metal pipe, plastic pipe, flexible pipe, or duct elbows to a diffuser through a wall, ceiling, or similar surface structure. The projection portion of the apparatus into which the diffuser is installed is substantially rigid, and thus generally prohibits deformation and damage as the apparatus and surrounding surface/structure is installed. For modification, break points and tear-away markers may be provided to aid in removal of portions for specific applications such as low internal clearance.

Abstract: The apparatus disclosed herein serves as a termination point for a connection of metal pipe, plastic pipe, flexible pipe, or duct elbows to a diffuser through a wall, ceiling, or similar surface structure. The projection portion of the apparatus into which the diffuser is installed is substantially rigid, and thus generally prohibits deformation and damage as the apparatus and surrounding surface/structure is installed. For modification, break points and tear-away markers may be provided to aid in removal of portions for specific applications such as low internal clearance.