Abstract: A damped drawbar for use in towing a drawn trailer that provides for the attenuation of noise, shock, and vibration that may be conducted into the towing vehicle. The newly designed drawbar uses a resilient elastomer, operating in shear, sandwiched between an outer steel tube and an inner steel tube, to reduce noise by damping the undesirable vibrations. A cushioned hitch pin coacting with the ovate holes in the inner tube, reduces the noise from a jolt caused by the hitch pin over-travel, during acceleration or deceleration, by as much as 95 percent. The hitch pin coacting with the ovate holes in the inner tube, serves as a mechanical fail-safe should the towed member be grossly beyond the drawbar's rated load capacity.

Abstract: The present invention relates primarily to a foundation support for use with manufactured homes, such as mobile homes and trailers, as well as the more conventional prefabricated home. Using a tube-in-tube construction, where sleeves of rubber lay compressed, one adjacent the other, intermediate an inner and outer tube, provides an earthquake resistant support. The elastomeric portion of the foundation support provides isolation from vibrations produced from ground movement, wind forces or from traffic vibrations. A screw jack located centrally within the inner cylinder permits the ideal adjustment in providing and maintaining support for the manufactured building at a dead level. A ball swivel joint facilitates the installation and adjustment. As a protective safety device, to prevent the over extension of the screw jack, there is a stop at the distal end of the threaded jack rod to maintain sufficient thread engagement when the jack is fully extended.