Methods and apparatus for a chipping hammer adapter handle generally comprising an elongated shaft and a hammer receiver. The elongated shaft is coupled to the hammer receiver. The hammer receiver comprises a hammer handle housing configured to receive a chipping hammer handle, and at least one secure arm to secure a chipping hammer. The adapter handle further comprises a knee guard and at least one vacuum hose guide. The adapter handle allows a user to remain in a standing position while using a chipping hammer for tile removal. The more ergonomic position may prevent fatigue and health issues for the user.

An improved walk-behind floor scraper incorporates a plurality of isolators between a main plate and cutting head to reduce vibration and a plurality of stops to prevent damage to the isolators.

An extractor system for extracting an object secured to another object or a base surface is disclosed, which may include an oscillator, an attachment base, and an oscillation control mechanism to limit the transmission of oscillation forces after the object has become unsecured, and preserve the target object in good condition. The attachment base may be a vacuum suction cup or temporary adhesive. The control system may be a mechanical lifting system or an electronic control adapted to cease or minimize application of vibrational force when the object becomes unsecured. Methods of extracting an object or separating two objects secured to each other are also disclosed, including identification or creation of partial unbonded areas beneath the target object to initiate the de-bonding process prior to application of vibrational forces.

A set of panels each including a main surface, a first edge, an opposite second edge, a third edge which is adjacent to the first edge and a fourth edge which is opposite to the third edge. The set includes a mechanical locking device which is configured to lock the first edge to the second edge. The locking device includes a flexible tongue. The flexible tongue includes a central part configured to cooperate with a tongue groove for locking. A first edge part and the tongue groove are configured such that when in the locked position a force P is applied adjacent the first edge and the third edge of the first panel and another force P is applied adjacent the second edge and the third edge of the second panel, the first edge part is pushed towards a bottom surface of an insertion groove which allows a disassembling.

A motorized floor stripper machine includes a motor, a frame, and a blade carrier. The blade carrier is capable of holding blades of different sizes, which can be installed on the blade carrier. The blade carrier is mounted to the frame on shock absorbers. A cam on the frame is connected to the blade carrier by a linkage that includes a bearing block, a pivot plate, a pivot pin, and a support plate. The blade carrier includes ball bearings that fit within linear channels mounted to the frame, so that when the cam is driven in an orbital motion, the blade carrier moves in a generally linear forward-backward motion. The blade carrier is relieved and includes multiple sets of holes for securing blades of different sizes.

Dust free tile removal apparatus comprising a hollow base member, a hollow rake member, a plurality of rake tines, struts, and a handle. The hollow base member includes an opening that is configured to couple to a vacuum source at one end and is in fluid communication with the hollow rake member at another end. The connection of the hollow rake member with the hollow base member forms an obtuse angle. The hollow rake member has a top surface and a first end each having at least two openings. Rake tines extend outward from the first end of the hollow rake member. Struts extend from a bottom surface of the apparatus. The handle spans between the struts.

A walk-behind floor scraper machine for removing floor covering from a floor surface is disclosed. In one aspect, the machine includes a base frame, an electric motor secured to the base frame, and a scraper assembly movably secured to the base frame and driven by the electric motor. The machine also includes a rear wheel arrangement including a pair of wheels having a rotational axis. In one aspect, the machine includes a hydraulic circuit with a hydraulic pump driven by the electric motor and a hydraulic motor powered by the hydraulic pump. The hydraulic motor has a drive axle coupled to the wheels, wherein the drive axle is coaxially aligned with the rotational axis. In one aspect, the machine can include a hydraulic tank-frame integral to the chassis of the machine that simultaneously stores hydraulic fluid and structurally supports the hydraulic motor.

A walk-behind floor scraper machine for removing floor covering from a floor surface is disclosed. In one aspect, the machine includes a base frame, an electric motor secured to the base frame, and a scraper assembly movably secured to the base frame and driven by the electric motor. The machine also includes a rear wheel arrangement including a pair of wheels having a rotational axis. In one aspect, the machine includes a hydraulic circuit with a hydraulic pump driven by the electric motor and a hydraulic motor powered by the hydraulic pump. The hydraulic motor has a drive axle coupled to the wheels, wherein the drive axle is coaxially aligned with the rotational axis. In one aspect, the machine can include a hydraulic tank-frame integral to the chassis of the machine that simultaneously stores hydraulic fluid and structurally supports the hydraulic motor.

A demolition tool particularly adapted to aid in board removal. The tool includes a handle and a head. The head has outer forwardly extending arms and a central fastener puller. The central fastener puller is aligned with the handle so that undesired lateral torques are minimized on the handle during fastener removal. The central fastener puller may be formed on a central boss disposed between the two outer arms. The central boss advantageously includes a convexly curved lower surface that provides a central pry surface for the tool. The head may be selectively positionable relative to the handle, such as via a push-button locking pivot connection.

An improved walk-behind floor scraper incorporates a plurality of isolators between a main plate and cutting head to reduce vibration and a plurality of stops to prevent damage to the isolators.