Abstract: A lighting apparatus includes a light-sheet assembly configured to conform to the rooftop. The light-sheet assembly extends at least one-half the length of the rooftop, and further extends at least one-half the width of the rooftop when mounted to the rooftop. The light-sheet assembly further includes a plurality of light emitting diode (LED) lights that are distributed about the rooftop when the light-sheet assembly is mounted to the rooftop. A controller is communicably coupled to the light-sheet assembly and configured to operate the plurality of LED lights. A roof-mount is affixed to the light-sheet assembly and configured to mount the light-sheet assembly to the rooftop of the emergency vehicle. The lighting apparatus is useful for emergency vehicles.

Abstract: A lighting apparatus includes a light-sheet assembly configured to conform to the rooftop. The light-sheet assembly extends at least one-half the length of the rooftop, and further extends at least one-half the width of the rooftop when mounted to the rooftop. The light-sheet assembly further includes a plurality of light emitting diode (LED) lights that are distributed about the rooftop when the light-sheet assembly is mounted to the rooftop. A controller is communicably coupled to the light-sheet assembly and configured to operate the plurality of LED lights. A roof-mount is affixed to the light-sheet assembly and configured to mount the light-sheet assembly to the rooftop of the emergency vehicle. The lighting apparatus is useful for emergency vehicles.

Abstract: “A tree trimming device that automatically climbs a tree or other vertical member and shears limbs or debris as it climbs has an anchor structure with substantially horizontal clamps, a cutting assembly with substantially horizontal clamps, vertical connecting pistons, and a cutting blade assembly.

Abstract: A tree trimming device that automatically climbs a tree or other vertical member and shears limbs or debris as it climbs has an anchor structure, a cutting assembly, vertical connecting pistons, and a cutting blade assembly. The anchor structure and the cutting assembly may be attached by vertical connecting pistons. The device climbs vertical members by clamping the anchor structure to the tree or other vertical member, then extending the vertical connecting pistons, which forces the cutting assembly to move up the vertical member, shearing limbs or other debris as it moves. Once the vertical connecting pistons are extended, the cutting assembly may be clamped to the tree, and the vertical connecting pistons may be retracted, thus pulling the anchor structure up the vertical member towards the cutting assembly. The process may be repeated until the vertical member is trimmed to the desired height. The process may be reversed to lower the device back to the ground.