Abstract: A rotary saw having a housing equipped with a laser beam generator and an end cap with a slit through which a laser beam projects in alignment with a rotating cutting blade of the saw. The housing is mounted on the body of the saw immediately over the blade guard and the end cap is rotatably disposed on the housing whereby the emitted laser beam from the slit may be directed in alignment with the saw blade cut anywhere along a 180 degree angular path extending from the line of cut in front of the saw blade to a target remotely located above the saw. The saw blade can be directed to follow the target in order to align the cut with the target.

Abstract: A device for performing levelling and transit functions is disclosed herein having an elongated member with parallel spaced-apart top and bottom flat surfaces separated by a thickened web. The web includes several cutouts exposing bubble indicators arranged in a variety of orientations and includes a rotary module at one end movably mounting a laser beam generator. The module has a passageway conducting a laser beam to a selected one of several slots or passageways provided in the end of the member in response to manual rotation of the module by the user whereby the beam exits the device in a linear path. The web includes a housing adjacent to the module enclosing electrical circuits, battery power supply and button controls for operation of the laser. A pivoting panel is coextensive with the top flat surface in a stored position while pivotal to a position normal to the top flat surface when used as a corner square.

Abstract: A fire retardant dispensing device is disclosed intended to be worn about the head within the helmet of a driver, which includes an apertured dispensing ring secured to the helmet about critical facial areas and operatively coupled to a pressurized source or reservoir of fire retardant. The dispensing ring includes a pair of lateral nozzles supplementing discharge and distribution of the fire retardant from the apertured ring. A buckled belt releasably retains the fire retardant source about the torso or leg of the user.