Abstract: A dissimilar alloy type conditioner for conditioning liquid fuel in a motor vehicle is provided with shielding to protect the conditioner from electromagnetic interference which would render the conditioner ineffective. A conditioner is preferably covered with shrink tubing, wrapped with aluminum foil, a ground wire entrapped between any two layers of foil, and provided with a suitable cover. The ground wire is connected to a convenient grounded screw. Rubber tubing connects the conditioner on both inlet and outlet sides to a metal fuel line. The invention is practiced in combination with the conditioner or as a kit, as for retrofitted installation.

Abstract: A combination rule and scale is disclosed in which the weight of the rule is used to counterbalance the weight of an object, such as a letter, and provide a measurement of the object's weight. In one embodiment the combination rule and scale comprises a coilable tape rule having both linear and weight gradations thereon. The rule's case is adapted to be supported in a suspended condition in alignment with its center of gravity and includes a clamp device for supporting an object to be weighed on the casing. By extending the tape rule on the side of the tape opposite the support device, the casing can be balanced and the weight of the object determined.