Abstract: A system that automates the application of shingles to the roof of a building.

Abstract: Interactive police robotic apparatus, interactive law enforcement systems, as well as law enforcement applications and methods. Certain embodiments include a system of a police robotic apparatus in combination with a law enforcement officer terminal. A law enforcement robot is deployed for in initial interaction with a civilian. This initial interaction can be to identify the civilian during a traffic stop, for example. The initial interaction can include the deployment of the robot so as to initially record and interact with the civilian without direct physical interaction or proximity between the law enforcement officer and the civilian. The robot can accomplish initial audio and video communication between the officer and the civilian and display the officer's face and voice to the citizen so as to put the citizen at ease during the initial interaction with the law enforcement officer.

Abstract: A system that automates the application of shingles to the roof of a building.

Abstract: Embodiments of the present invention relate to extending the usable life of one or more wearable surfaces, such as the treads of a tire or the surface of a conveyor, for example. According to example embodiments of the invention, the treads of a tire or the surface of a conveyor are cleaned and a polymer is applied to the one or more wearable surfaces so as to rebuild and recondition the tire or conveyor thereby extending the usable life of the tire or conveyor. An aggregate or colorant may be added to the polymer to improve its performance or to identify that the tire has been treated in such way. The colorant may also be applied for cosmetic or other identification purposes. The polymer may also change or optimize the tire's tread pattern for changes in weather, for example.