Abstract: A concrete/cement resurfacing machine integrates a dust collection subsystem and an overlay mixing/distribution subsystem, enabling a single operator to steer the machine to a desired floor location and deposit mixed, cementitious overlay material. The combination of dust collection and overlay mixing saves considerable time and achieves improved results, eliminating the need for separate vacuum machines while reducing the risk that dust will be released as bags of dry ingredients are added to the mixing tank. A single propane engine powers a hydraulic pump, with fluid being routed to three separate hydraulic motors with associated control valves to provide for forward/reverse locomotion, bidirectional paddle mixing, and vacuum generation. The dust collection system is preferably a two-stage system including a vacuum collection tank and a HEPA filter.

Abstract: A walk-behind, wet/dry grinder/polisher adapted for concrete floors does not use of pulleys, belts or chains. Maintenance is significantly enhanced, as such components are typically the first to wear out and cause replacement issues. A frame with forward and rear portions pivots about a single set of right and left wheels. A planetary grinding head, powered by a propane engine, is coupled to the forward portion of the frame. In contrast to all known designs, the engine is directly, mechanically coupled to the grinding head without the use of pulleys, belts or chains. The direct, mechanical coupling to the grinding head preferably uses a centrifugal clutch. A water tank and water feed line from the water tank to the grinding head facilitate wet floor grinding and polishing. The grinding head is also encased in a shroud coupled to a tube for dust collection associated with dry floor grinding and polishing.

Abstract: A walk-behind grinder/polisher receives removably attachable wet and dry debris collection modules. These modules are substantially rigidly attached to the frame of the grinder/polisher and suspended above a floor surface so as to travel with the grinder/polisher when coupled thereto. Each debris collection module removably attaches to a vacuum producer mounted on the frame of the grinder/polisher. An engine drives a first hydrostatic pump in fluid communication with a first hydraulic motor driving the grinding/polishing head in reversible fashion. The engine further drives a second hydrostatic pump in fluid communication with a second hydraulic motor driving the vacuum producer. The dust collection module has an inlet removably attachable to the dust collection port on the shroud, and an outlet coupled to a dust collection canister. The slurry collection module has an inlet removably attachable to a squeegee, and an outlet coupled to a slurry containment vessel.

Abstract: A high-power slurry vacuum cart is well suited to collect and contain any slurry or wet residue produced through concrete and other surface processing operations. A multi-horsepower propane engine and propane tank are mounted on a mobile frame, along with a suction pump powered by the propane engine. A slurry containment vessel mounted on the frame has an input in communication with a squeegee and an output coupled to the suction pump. The squeegee may be adapted for floor contact to collect slurry for transfer to the slurry containment tank. The suction pump is directly coupled to the propane engine through a universal joint, thereby obviating the use of belts, chains or pulleys. The output of the pump may optionally be used as an air blower for surface drying, or the like, as well as use as an air blower to assist in emptying the slurry containment tank.

Abstract: A combination cart providing independent electrical power generation and dust extraction capabilities finds utility in concrete processing and other operations that create unwanted dust using hand tools for cutting, grinding, polishing, coring, drilling, sanding, and the like. A propane tank powers a propane engine, and the propane engine drives an electrical generator providing power to an electrical outlet panel mounted on the frame. The cart further includes a dust extraction and filtration system driven by an electric motor, also mounted on the frame.

Abstract: Lightweight, battery-operated, walk-behind joint- and crack-filling equipment has no belts or chains to wear out, and no inverters or other electrical power-conversion apparatus. A single brushless battery-operated DC motor, directly coupled to two pumps, simultaneously delivers the resin and hardener to a wand, such that a single user can push the cart and apply the mixture. The portable cart includes a frame with a handle and single set of right and left wheels accommodates two containers holding the hardening components. The containers may be pails or buckets or bag-in-box containers that may be compressed and collapsed after use to reduce waste requirements. The boxes and/or bags may also be biodegradable for a more environmentally friendly solution.

Abstract: A floor polishing machine for concrete includes a frame with an integrated hydraulic fluid tank, a hydraulic drive system, and a hydraulic pump vacuum system. Further, the machine provides a swivel polishing head that provides abutting contact with a floor and includes a floating ring and rubber skirts that seals the polishing head. The machine provides interchangeable wet and dry vacuum systems for collection of the slurry during wet operation and dust during dry operation. A support member inserts into a receiving sleeve for a choice of wet or dry option. A squeegee system attached to the rear of the apparatus collects slurry and operates to send the slurry to a collection tank. The squeegee lifts out of the way during dry operation.

Abstract: A concrete mixing machine for indoor preparation of fluid concrete for disposition as flooring. The concrete mixing machine includes a mixer tank capable of mixing of twenty-three bags of concrete concurrently. Mixing propellers inside of the mixer tank attach to a shaft, whereby a hydraulic propeller drive motor rotationally moves the shaft, and the mixing propellers mix the concrete. The concrete mixing machine produces a large batch of concrete, and the concrete mixing machine moves and deposits the concrete for application using a flow control mechanism with a flow control mixer attached to the mixer tank that regulates concrete flow through a valve and chute and synchronizes with a flow control drive-wheel. The concrete mixing machine is hydraulically operated and self-propelled. The concrete mixing machine does not emit gases harmful to indoor air quality and thus is environmentally friendly.

Abstract: The disclosure herein describes a concrete mixing machine for indoor preparation of fluid concrete for disposition as flooring. The concrete mixing machine is capable of mixing of 23 bags of concrete concurrently. The concrete mixing machine produces a large batch of concrete, and the concrete mixing machine moves and deposits the concrete for application. The concrete mixing machine is hydraulically operated and self-propelled. The concrete mixing machine does not emit gases harmful to indoor air quality and thus is environmentally friendly.

Abstract: A floor polishing machine for concrete includes a frame with an integrated hydraulic fluid tank, a hydraulic drive system, and a hydraulic pump vacuum system. Further, the machine provides a swivel polishing head that provides abutting contact with a floor and includes a floating ring and rubber skirts that seals the polishing head. The machine provides interchangeable wet and dry vacuum systems for collection of the slurry during wet operation and dust during dry operation. A support member inserts into a receiving sleeve for a choice of wet or dry option. A squeegee system attached to the rear of the apparatus collects slurry and operates to send the slurry to a collection tank. The squeegee lifts out of the way during dry operation.

Abstract: An apparatus is provided for removing at least one surface layer from a floor. The apparatus includes a body frame mountable by a machine operator. A blade tool assembly having a scraping blade is secured to the front of the main body frame by a blade holder. The blade tool may be replaced by a detachable transport wheel for moving the machine when not in use for removing floor covering. The blade holder is manipulated by attaching a hydraulic cylinder ram to the bottom side of the blade holder. The hydraulic cylinder is attached to a rear bracket attached below the body of the machine, whereby the hydraulics system for controlling the blade holder is protected. The angles and pivotal connections of the hydraulic cylinder to the blade holder permit sufficient power to operate the blade holder using an auxiliary hydraulic pump.

Abstract: A pressure joining method includes a hammer drill attachment device mountable within the chuck of a hand-held hammer drill. Using the hammer drill attachment, an operator installs flooring sheets onto a hook and loop flooring subfloor. The hammer drill attachment includes a shaft for mounting the attachment within the chuck. The hammer drill imparts vibration to the shaft when operated. An angled body member is attached to the shaft and extends downward toward a foot assembly having a foot pad means. The foot assembly vibrates when the hammer drill is actuated to cause the foot pad means to abut against the overlapping sheets of a flooring system and to press the sheets onto an underlying subfloor, thereby forming a seam between the edges of the floor sections.

Abstract: An apparatus is provided for removing at least one surface layer from a floor. The apparatus includes a body frame mountable by a machine operator. A blade tool assembly having a scraping blade is secured to the front of the main body frame by a blade holder. The blade tool may be replaced by a detachable transport wheel for moving the machine when not in use for removing floor covering. The blade holder is manipulated by attaching a hydraulic cylinder ram to the bottom side of the blade holder. The hydraulic cylinder is attached to a rear bracket attached below the body of the machine, whereby the hydraulics system for controlling the blade holder is protected. The angles and pivotal connections of the hydraulic cylinder to the blade holder permit sufficient power to operate the blade holder using an auxiliary hydraulic pump.

Abstract: A pressure joining method includes a hammer drill attachment device mountable within the chuck of a hand-held hammer drill. Using the hammer drill attachment, an operator installs flooring sheets onto a hook and loop flooring subfloor. The hammer drill attachment includes a shaft for mounting the attachment within the chuck. The hammer drill imparts vibration to the shaft when operated. An angled body member is attached to the shaft and extends downward toward a foot assembly having a foot pad means. The foot assembly vibrates when the hammer drill is actuated to cause the foot pad means to abut against the overlapping sheets of a flooring system and to press the sheets onto an underlying subfloor, thereby forming a seam between the edges of the floor sections.

Abstract: A substrate assembly for use in a lamp has a main printed wiring board and a standoff board. The main printed wiring board has a main surface with one or more LED packages disposed on the main surface and electrically connected thereto. The standoff board is disposed on the main surface of the main printed wiring board. The standoff board has an LED package disposed thereon and conductors to provide an electrical connection between the LED package disposed on the standoff board and the main printed wiring board.

Abstract: An apparatus for removing at least one surface layer from a floor. The apparatus includes a body frame mountable by a machine operator. A blade tool assembly having a scraping blade is secured to the front of the main body frame and can be used for removing floor covering. The blade tool may be replaced by a detachable transport wheel for moving the machine when not in use for removing floor covering. A pair of independent suspensions is attached to the rear end of the frame, and independent drive motors and wheels for moving the frame and blade tool with respect to the floor surface attach to each suspension. The independent suspensions include a pivot shaft attached to the frame with a suspension bar that supports the drive motor attached to each pivot shaft. Shock absorbers are attached to the suspension bar and to the rear end of the frame such that the rear of the apparatus adjusts when the apparatus encounters debris or irregular floor surfaces.

Abstract: An apparatus is disclosed for removing at least one surface layer from a floor. The apparatus includes a body frame mountable by a machine operator. A blade tool assembly having a scraping blade is secured to the front of the main body frame and can be used for removing floor covering. The blade tool may be replaced by a detachable transport wheel for moving the machine when not in use for removing floor covering. A pair of independent suspensions is attached to the rear end of the frame, and an independent drive means and wheels for moving the frame and blade tool with respect to the floor surface attaches to each suspension. The independent suspensions include a pivot shaft attached to the frame with a suspension bar that supports the drive means attached to the pivot shaft. Shock absorbers are attached to the suspension bar and to the rear end of said frame such that the rear of the apparatus adjusts when the apparatus encounters debris or irregular floor surfaces.

Abstract: An apparatus for removing at least one surface layer from a floor comprises a main body frame and a rear frame section supported by rear wheels that are driven by an integrated hydraulic system including two fluid pumps. A blade tool assembly having a scraping blade is secured to the front of the main body frame and can be used for removing the floor covering. The rear frame section is attached to the main body frame by an axle assembly. The rear frame section may pivot about the longitudinal axis of the apparatus causing the wheels to adjust to debris buildup and imperfections in the floor surface such that the blade remain in constant contact with the floor covering. Further, the apparatus includes a tongue jack assembly removably attached to the front of the main body frame, and supplemental weight supporting holder are provided on each side of the main body frame for holding variable amounts of weights.