Abstract: An acoustic telemetry tool can include string connectors at respective opposite ends of the acoustic telemetry tool, a tubular outer housing extending longitudinally between the connectors, an inner mandrel extending longitudinally between the connectors, an annular chamber formed radially between the outer housing and the inner mandrel, and an acoustic telemetry assembly positioned in the annular chamber. In one acoustic telemetry tool, the outer housing is configured to transmit mechanical loads between the connectors, but the inner mandrel is configured to not transmit mechanical loads between the connectors. In another acoustic telemetry tool, the outer housing and the inner mandrel are configured to transmit mechanical loads between the connectors. In another tool, there may be multiple sets of outer housings, inner mandrels and acoustic telemetry assemblies.

Abstract: An acoustic telemetry tool can include string connectors at respective opposite ends of the acoustic telemetry tool, a tubular outer housing extending longitudinally between the connectors, an inner mandrel extending longitudinally between the connectors, an annular chamber formed radially between the outer housing and the inner mandrel, and an acoustic telemetry assembly positioned in the annular chamber. In one acoustic telemetry tool, the outer housing is configured to transmit mechanical loads between the connectors, but the inner mandrel is configured to not transmit mechanical loads between the connectors. In another acoustic telemetry tool, the outer housing and the inner mandrel are configured to transmit mechanical loads between the connectors. In another tool, there may be multiple sets of outer housings, inner mandrels and acoustic telemetry assemblies.

Abstract: A system and method for blowing lint from clothing dryer exhaust ducting. The system includes a high capacity electric blower, an adapter to connect the blower to a dryer exhaust hook-up, and a lint catcher to capture lint blown from the ducting. The lint catcher may be connected over an exterior wall vent, or to a portion of the ducting exposed in an attic. The method includes removing a flexible dryer exhaust hose from the exhaust hook-up, connecting the adapter between the blower and the wall hook-up, connected the catcher to the exterior vent or to the exposed ducting, and running the blower.

Abstract: A tool for cleaning a brake rotor and the method of using the same. The tool has two parts, one for cleaning the rotor surface and the other for turning the rotor surface. The tool for cleaning the rotor surface has a generally U-shaped handle with a pair of abrasive members at each end. The U-shaped tool is held so that its abrasive members contact the surface of the rotor, and the member is then squeezed. The second tool has a socket which is placed over a lug nut, and a straight, cylindrical handle is affixed to the socket. An elongated sleeve is placed loosely over the handle, and the socket is turned in a circular motion so that the rotor is turned thereby moving the rotor against the two abrasive members.