Abstract: Bottom mounted (anchored) fire barrier systems include UL 2079 and ASTM 1399 tested and certified fire barrier/retainer structures, especially useful for floor/floor, wall/floor, and wall/wall expansion joint spaces formed by spaced opposing pre-cast concrete building units of 4½ inches thickness. The use of this system in structures using pre-cast building units provides room for installation of mandated rubber boots into the limited expansion joint space. Each fire barrier has affixed to its outside long edges a metal retainer that is structured for holding the barrier correctly and tightly positioned to the building unit surfaces first for secure and tight anchoring and then for providing support for the barrier to prevent leakage of gas, flame, smoke, and heat during a fire. Providing for ease of installation there is a reusable installation tool, an optional guard unit, male/female connections between barrier sections, and a splice connector butt to connections.

Abstract: Multi-directional, one-piece, tested and rated, inside-mount fire barriers requiring no splicing to fit into expansion joint corner-type spaces are presented. Accompanying low-cost, re-useable, size-adjustable installation tools designed for one-step, drop-in, installation of each style barrier, are also taught. To insure a tight-fit between each installed barrier and the building units forming the joint space, spreader press-fit tools which, if desired, may serve as fire barriers covers are taught. Described herein is a barrier that needs no splicing to be installed into a T-shaped joint space that is created by the convergence of three building structures. The present invention contemplates inside-mounted, one-piece barriers shaped to fit cross-shaped and various L-shaped expansion spaces. L-shaped fire barriers include barriers having a horizontal and a vertical arm that can occur in various configurations and barriers having two horizontal arms.

Abstract: A dual-motor handcart for lifting, steering, and transporting a heavy object, such as a snowmobile, by one person, having two motor-powered wheels or trackdrives for moving and steering attached to a width and height adjustable frame, the frame offering a handle, a pair of legs connected to the handle, lift pads for supporting the heavy object, a length adjustable lift strap for coupling the frame to the heavy object. The operatively independent motors each attached to one of the wheels providing force required for moving and steering. Thumb switches having on, off, forward, and reverse motions settings at desired speeds, control each motor providing for a single person to easily steer a cart fully loaded with a heavy object over smooth or rough terrain.