Abstract: A drill string system for performing measurement while drilling and logging while drilling operations for oil and gas drilling is provided. The drill string system includes a drill string section having a bore defined by an inner length of surface of a pipe wall which has an outer surface. A tool guide is secured in the drill string section and a support is provided for centering the tool guide in said bore. Communication ports extend through the drill pipe wall from the outer pipe surface to the inner surface and through the support to an inner surface of the tool guide, said communication ports being in communication with one another. An elongate cylindrical tool is disposed in the tool guide. A first terminated passageway in the tool is in communication with a pressure sensor within the tool to sense the drill string annular pressure.

Abstract: The vehicle has a loading floor for receipt of separate matter such as refuse and recyclables and a container for the matter. A sweep blade moves between inner and outer stop positions. When the blade moves from the inner stop position, it extends outwardly of the container and terminates at the outer stop position at which the blade is in contact with any matter on the loading floor. When the blade moves from the outer stop position, it retracts inwardly through an opening in the container with resulting sweeping of the matter through the opening and into the container. When the blade is at the inner stop position, it is located such as to prevent any matter within the container from discharging thorough the opening. The container has a number of compartments for each category of matter and a hopper.

Abstract: A system for indicating fault condition on operator's electrostatic discharge protection equipment includes for an operator wearing ESD protection equipment comprising: a conductive wrist-strap in electrical contact with the operator's body, and an electrical wiring to a local ground, a portable system to alert the operator when a problem (cut or poor electrical connection) occurs with wiring to the ground, or when an electrical field reaches a predetermined value at the operator's wrist.In one embodiment, the invention also includes a device for memorizing that an ESD event has occurred.