An autonomous guided roofing material removal machine is provided.

A fulcrum prybar includes a shaft portion extending along a first axis, a curved prying portion affixed to a first end of the shaft portion, and a fulcrum portion affixed to the curved prying portion. The fulcrum portion includes two rectangular portions fused together to form an obtuse angle or a right angle cross section. One of the two rectangular portions is oriented such that it is flush with a horizontal surface while the prybar has partially raised an object from the same or another horizontal surface.

A tool for removing roof shingles is disclosed having a handle, a split shaft, a pair of roller wheels and a replaceable blade member. A pair of handles extends orthogonally from the proximal end of the shaft, while the distal end of the shaft separates into a first and second portion that support a flat, shingle-removing blade. Roller wheels are positioned adjacent to the blade such that the blade and wheels can be positioned along the roof surface to allow sliding of the blade under shingles and to provide a fulcrum point from which to lift the blade from beneath any secured roof shingles during removal. The shaft upper portion may include a slight upward bend to reduce back strain, while the user handles are preferably rotatably support to allow the tool to rotate as it is slide without the handles rotating relative to the user's hands and causing blisters.

A system and method for removing shingles from a roof with an automatic triggering of power to a fastener engaging member which is accomplished with the aid of relative movement occurring when a leading edge of the system encounters a fastener coupled to a substrate with shingle coupled thereto.

An apparatus comprising a hand tool handle and an implement adapted for use with an associated workpiece is provided. A method of using a hand tool is also provided, the method comprises applying a force to the hand tool and contacting a workpiece with an implement thereof.

A system for installing shingles on a roof is provided. One embodiment includes a navigational apparatus for traversing the roof and a roof shingle installation apparatus attached to the navigational apparatus for installing the shingles. The roof shingle installation apparatus is designed to remove a shingle from a bundle of shingles, and position the shingle, and fasten it to the roof.

A hand tool having a step down mechanism. The hand tool includes a step down mechanism having a plate with two opposing ends. The plate also has an upper surface and a lower surface. The step down mechanism has an upper tube located near the first end and projecting from the upper surface and a lower tube located near the second end and projecting from the lower surface. The hand tool also includes an upper shaft affixed to the upper tube and a lower shaft affixed to the lower tube. The lower shaft has a hand tool implement affixed to an end of the lower shaft. The upper tube is sized and shaped to receive and hold the upper shaft and the lower tube is sized and shaped to receive and hold the lower shaft. The step down mechanism may include a handle projecting upward from the upper tube.

Devices configured to operate on an angled surface (e.g., a roof), and associated systems and methods are disclosed herein. In some embodiments, representative systems include an apparatus with a body assembly, an arm assembly coupled to the body assembly, and a material handling assembly coupled to the arm assembly. The body assembly can include a body frame, and a plurality of positioning assemblies coupleable to cables and configured to position and/or orient the body frame on the surface. The arm assembly includes a proximal end portion rotatably coupled to the body portion and a distal end portion opposite the proximal end portion. The material handling assembly is coupled to the distal end portion of the arm assembly and is configured to carry a surface material to be positioned on the angled surface.

A system and method for removing shingles from a roof with an automatic triggering of power to a fastener engaging member which is accomplished with the aid of relative movement occurring when a leading edge of the system encounters a fastener coupled to a substrate with shingle coupled thereto.

Devices configured to operate on an angled surface (e.g., a roof), and associated systems and methods are disclosed herein. In some embodiments, representative systems include an apparatus with a body assembly, an arm assembly coupled to the body assembly, and a material handling assembly coupled to the arm assembly. The body assembly can include a body frame, and a plurality of positioning assemblies coupleable to cables and configured to position and/or orient the body frame on the surface. The arm assembly includes a proximal end portion rotatably coupled to the body portion and a distal end portion opposite the proximal end portion. The material handling assembly is coupled to the distal end portion of the arm assembly and is configured to carry a surface material to be positioned on the angled surface.