Abstract: A suspension for a ground vehicle which connects a rigid axle to the vehicle chassis and stabilizes the rigid axle in fore, aft, and rotational directions. The suspension comprises four links and a swivel. The four links extend within a predetermined number of degrees of parallel to a longitudinal axis of the vehicle, and connect the rigid axle to the vehicle chassis. Two of the links are normally attached above, and two of the links are normally attached below the rigid axle centerline. Therewith, the swivel comprises an arm having two opposite ends and a centrally positioned pivot shaft. Each end of the arm being interposed between an end each of two of the four links thus the pivot shaft is held steadfast to the surface residing between the locations where the pair of link ends would otherwise attach. Said surface being either of the vehicle framework or of the rigid axle, whichever location is preferred.

Abstract: In a four-link suspension for a ground vehicle, of the type which utilizes a lower pair and an upper pair of connecting links to attach and stabilize a rigid axle of a vehicle in fore, aft, and rotational directions. The improvement to which comprises the addition of a swivel arm, having two ends, and interposed between a pair of links at one end, so that, one end of each link attaches to a corresponding end of swivel arm. The swivel arm has a center pivot axis and attached base mount, which is securely affixed to the approximate middle laterally of the rigid axle or chassis, whichever location is the most desireable to mount the swivel. When looked at from above the impression created is that of a V or U shape from the pair of links and the swivel where they connect. The general purpose of the swivel is to eliminate any bind in the suspension connecting links by permitting one link of the pair to push past, and the other link to pull away from, the swivel center axis.

Abstract: A self contained fuel heating apparatus for the heating of fuel for an internal combustion engine to raise the temperature thereof prior to the passage of the fuel into the engine for combustion. The fuel heating apparatus includes a tank defining a chamber having cooling medium inlet and outlet means to allow circulation of heated cooling medium in the chamber. A portion of the fuel line passes through the chamber where heat is exchanged from the cooling medium to the fuel prior to combustion. An auxiliary heater unit maintains the fuel and cooling medium heated in the chamber when the engine is not in operation to facilitate starting of a cold engine once again.