Abstract: Cleaning reamer devices and methods for cleaning the interior of a valve guide are described. One cleaning reamer includes a straight shank, a body, and a piloted portion. The piloted portion is dimensionally sized and shaped to be substantially equivalent to the valve stem that is positioned within the valve guide to be cleared of deposits. The body of the cleaning reamer is fluted or straight.

Abstract: Wheel balancers and methods of their use are disclosed. One wheel balancer includes a cable and a base. The cable has a support end for being fastened to a support. The base is configured for receipt inside a wheel, and the base has proximal and distal ends and a hollow interior area for passing the cable therethrough. The cable passes through the base interior area and is operatively coupled to the base such that a distance between the cable support end and the base distal end is generally constant when the cable is extended. A pivot point for the cable is movable relative to the base between the base distal end and the cable support end.

Abstract: Push-pull controls utilizing linear and rotational inputs to create linear output are disclosed. One control includes an elongate push rod and a roller pin. The rod has an outer surface, a generally circular cross-section perimeter, a center axis, a proximal end with a user input, and a distal end configured to directly or indirectly interact with an apparatus to be controlled. The rod is rotatable and slidable along the rod axis. The roller pin has a center axis and an outer surface that contacts the push rod outer surface. The roller pin center axis is angularly offset from and non-intersecting with the push rod center axis. The amount of angular offset is greater than zero degrees.

Abstract: A repeater for enhancing performance of a TDMA mobile radio system in poor signal areas has a bank of frequency agile, single channel amplifiers (13), and controller (14). The controller (14) scans the channel of the band and, upon identifying a channel carrying traffic, enables one of the amplifier units (13) to operate on that channel. Each of the amplifier units (13) includes a time slot activity detector (35) for detecting which time slot of a channel is active. The output of the activity detector (35) is passed to a logic control module (36), which controls the amplification of an active time slot via a time slot gate and power unit (38).