Tools for cleaning surfaces are described. The tools include a pole having a first end and a second end with two bent segments. A head member assembly is coupled to the pole. The head member assembly includes a center head member coupled to the pole and having at least one tongue member extending from an end of the center head member. A first plurality of bristles extends from a surface of the center head member opposite the pole. An end module is removably coupled to the tongue member of the center head member and includes a second plurality of bristles positioned adjacent the first plurality of bristles. The second plurality of bristles includes a first portion of bristles that extend at a first angle relative to an end surface of the end module in a direction away from the pole.

A concrete float, float assembly, float adapter and interface, and float vibration apparatus and methods include a concrete float that have 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 include a concrete float that have 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.

Disclosed is an apparatus for use with an instrument handle, the apparatus including a housing, a knob receivable in the housing, the knob having a key hole structure to receive an instrument bulb and neck, a slot in the housing to receive the knob, wherein the knob is pressed into the slot to facilitate installation and removal of the instrument bulb and neck.

Disclosed is an apparatus for use with an instrument handle, the apparatus including a housing, a knob receivable in the housing, the knob having a key hole structure to receive an instrument bulb and neck, a slot in the housing to receive the knob, wherein the knob is pressed into the slot to facilitate installation and removal of the instrument bulb and neck.

A hand tool includes a handle which is a hollow handle with a space defined therein. A connection portion has a slit defined in the first end thereof. The connection portion has two ribs extending inward from an inside of the second end thereof. The handle has a tubular portion extending from one end thereof. A protrusion extends outward from outside of the tubular portion. The tubular portion is inserted into the second end of the connection portion, and the ribs are engaged with the protrusion. A blade has a body and a toothed portion. The toothed portion is inserted into the slit of the connection portion. A cooling material is located in the space of the handle. The connection portion of the handle is connected to the toothed portion of the blade. The cooling material performs as a weight in the handle.

A hand tool includes a handle which is a hollow handle with a space defined therein. A connection portion has a slit defined in the first end thereof. The connection portion has two ribs extending inward from an inside of the second end thereof. The handle has a tubular portion extending from one end thereof. A protrusion extends outward from outside of the tubular portion. The tubular portion is inserted into the second end of the connection portion, and the ribs are engaged with the protrusion. A blade has a body and a toothed portion. The toothed portion is inserted into the slit of the connection portion. A cooling material is located in the space of the handle. The connection portion of the handle is connected to the toothed portion of the blade. The cooling material performs as a weight in the handle.

A Shipboard Multi-tool. The Multi-tool includes a pair of groups of tools that are individually-extendable from the handle in order to allow the Multi-tool to operate a plurality of different shipboard mechanisms with a single assembly. One group of extendable tools includes spanner and box wrenches. Another group of extendable tools includes key-type wrenches. The individual extendable wrenches are lockable in a variety of angular positions relative to the handle to provide the user with several configurations with which to use the wrenches. The locking mechanisms are operable by depressing a spring-loaded push-button.

A foreign object removing socket adaptor includes a pusher, an adaptor, an external thread, an internal tread, and a stop. The pusher includes a drive head and a main shaft. The adaptor includes a tool body, a socket attachment body, and a main channel. The drive head and the main shaft are adjacently connected to each other. The external thread is laterally connected around the main shaft. The stop is radially connected around the main shaft, opposite of the drive head. The tool body and the socket attachment body are adjacently connected to each other. The main channel concentrically traverses through the tool body and the socket attachment body. The internal thread is laterally connected within the main channel. The main shaft is threadedly engaged with the main channel through the external thread and the internal thread.

A foreign object removing socket adaptor includes a pusher, an adaptor, an external thread, an internal tread, and a stop. The pusher includes a drive head and a main shaft. The adaptor includes a tool body, a socket attachment body, and a main channel. The drive head and the main shaft are adjacently connected to each other. The external thread is laterally connected around the main shaft. The stop is radially connected around the main shaft, opposite of the drive head. The tool body and the socket attachment body are adjacently connected to each other. The main channel concentrically traverses through the tool body and the socket attachment body. The internal thread is laterally connected within the main channel. The main shaft is threadedly engaged with the main channel through the external thread and the internal thread.