A scraper apparatus, comprising a scraper blade; a scraper blade holder; wherein the scraper blade and the scraper blade holder are rotatable relative to one another about a pivot connection formable by the scraper blade and the scraper blade holder; wherein the scraper blade has at least one scraper blade fastener; wherein the scraper blade holder has at least one scraper blade holder fastener; and wherein the at least one scraper blade fastener is fastenable with the at least one scraper blade holder fastener via the scraper blade and/or the scraper blade holder being rotated about the pivot connection.

A prying head is provided in the present disclosure. The prying head, which is used in cooperation with a hand tool, includes a prying portion, a supporting portion and an assembling portion. The prying portion includes a ground-abutting surface and an article-abutting surface. The article-abutting surface is connected to the ground-abutting surface to form a sharp edge. The supporting portion is connected to the prying portion and includes a curved surface. The curved surface is connected to the ground-abutting surface and the article-abutting surface, so as to make an end of the supporting portion away from the sharp edge into a curved form. The assembling portion is connected to the supporting portion and includes a blind hole. The blind hole is recessed from an end of the assembling portion away from the sharp edge.

A concrete float, float assembly, float adapter and interface, and float vibration apparatus and methods are described. A concrete float has improved surfaces, and structures for controlling flow of wet concrete. An interface such as may be included in a quick attach/release configuration may be integrated on a float, and/or may be added onto a float for quick attach/release of a pivot assembly. Adapters may ease attachment or release of an assembly, and may be an interengaging element, such as a sliding dovetail as an interengaging element, or an adapter may be used to place an assembly in tension to secure the assembly. A vibration assembly may be included and configured to have a low center of mass, can have a user display, an accelerometer, and/or other components. A pivot assembly may be included for easier use by an operator, and may include a user display, quick release mechanisms.

A concrete float, float assembly, float adapter and interface, and float vibration apparatus and methods are described. A concrete float has improved surfaces, and structures for controlling flow of wet concrete. An interface such as may be included in a quick attach/release configuration may be integrated on a float, and/or may be added onto a float for quick attach/release of a pivot assembly. Adapters may ease attachment or release of an assembly, and may be an interengaging element, such as a sliding dovetail as an interengaging element, or an adapter may be used to place an assembly in tension to secure the assembly. A vibration assembly may be included and configured to have a low center of mass, can have a user display, an accelerometer, and/or other components. A pivot assembly may be included for easier use by an operator, and may include a user display, quick release mechanisms.

A bodily fluid cleanup system is configured to be assembled, employed and subsequently disposed of to safely remove biohazardous material from an area. The system includes a disposable receptacle and a plurality of disposable modular components for assembling a plurality of disposable modular implements, all of which may be enclosed within a single package. The modular implements may include, but are not limited to, a wiper blade, a broom, a dustpan and/or a mop. The receptacle transitions between an open position and a closed position and in an embodiment includes a base, an integral cover, a molded bottom edge insert and a molded mounting member which all form an enclosure that functions to house various materials and the implements in a pre-usage configuration and to retain biohazardous material during a cleanup process.

A bodily fluid cleanup system is configured to be assembled, employed and subsequently disposed of to safely remove biohazardous material from an area. The system includes a disposable receptacle and a plurality of disposable modular components for assembling a plurality of disposable modular implements, all of which may be enclosed within a single package. The modular implements may include, but are not limited to, a wiper blade, a broom, a dustpan and/or a mop. The receptacle transitions between an open position and a closed position and in an embodiment includes a base, an integral cover, a molded bottom edge insert and a molded mounting member which all form an enclosure that functions to house various materials and the implements in a pre-usage configuration and to retain biohazardous material during a cleanup process.

A tool holder for firmly holding a wide range of sizes and shapes of tool handles includes a holder handle, a cage assembly, a clamp, a locking coupling, and a threaded actuator. The cage assembly includes a pair of axially spaced apart supports having axially aligned through openings sized for receiving tool handles of different sizes and shapes. The clamp is transversely movable between the supports in opposite directions for releasably clamping the tool handle against the supports. The locking coupling is interposed between the holder handle and the cage assembly for selectively adjusting the angular orientation of the cage assembly relative to the holder handle. The threaded actuator is operable to lock or unlock the locking coupling for permitting or restricting adjustment of the angular orientation of the cage assembly relative to the holder handle.

A cleaning device for cleaning an interior surface of a fuel tank includes a handle extending from a first end to a second end, the handle having a grip proximal to the second end which is configured to be grasped by a human hand. The cleaning device also includes a head proximal to the first end of the handle such that the head is fixed to the handle, the head having a magnet fixed thereto. The cleaning device also includes a cleaning pad made of a material which is not attracted to the magnet, the cleaning pad being removably mounted to the head.

A cleaning device for cleaning an interior surface of a fuel tank includes a handle extending from a first end to a second end, the handle having a grip proximal to the second end which is configured to be grasped by a human hand. The cleaning device also includes a head proximal to the first end of the handle such that the head is fixed to the handle, the head having a magnet fixed thereto. The cleaning device also includes a cleaning pad made of a material which is not attracted to the magnet, the cleaning pad being removably mounted to the head.

A trough-support system includes a trough, an arm rest and a handle. In some embodiments, the body of the arm rest is designed to curve around the arm of a user. The arm rest and handle can include one or more magnetic tool holders that can hold a tool or instrument. The handle can include a strap with a magnetic tool holder that can hold a tool or instrument. Various parts of the arm rest, handle and/or strap can be made of magnetic material to hold tools.