Abstract: A diffusing vent assembly may include a diffuser base and a diffusing head. The diffuser base may include a mounting flange, a collar extending from the mounting flange, and a ductwork fixation channel. The collar may span an infra-ceiling space of a vehicle. The diffusing head may include a diffuser vane configuration, a rotational flange surrounding the diffuser vane configuration, and an air blade. The diffuser base and the diffusing head further comprise complementary rotational securement members that permit rotation of the diffusing head relative to the diffuser base. The air blade may extend through the collar of the diffuser base. Installing the diffusing vent assembly may include engaging the ductwork fixation channel with a supply duct, inserting the diffusing head into the diffuser base, and securing the diffusing head and the diffuser base using the complimentary rotational securement members.

Abstract: A recreational vehicle may include a chassis, at least one axle assembly, and a vehicle body. The vehicle body may be supported by the chassis. The axle assembly may be coupled to the chassis and may provide motive support and underbody clearance to the chassis. The chassis may include a plurality of longitudinal main rails that span at least a portion of a length of the recreational vehicle and define a length of at least one crawl space. The plurality of lateral crawl space cross members may extend between and interconnect the plurality of longitudinal main rails and define a width of the at least one crawl space. A floor of the recreational vehicle, the plurality of longitudinal main rails, and the plurality of lateral crawl space cross members may collectively define the at least one crawl space.

Abstract: A diffusing vent assembly may include a diffuser base and a diffusing head. The diffuser base may include a mounting flange, a collar extending from the mounting flange, and a ductwork fixation channel. The collar may span an infra-ceiling space of a vehicle. The diffusing head may include a diffuser vane configuration, a rotational flange surrounding the diffuser vane configuration, and an air blade. The diffuser base and the diffusing head further comprise complementary rotational securement members that permit rotation of the diffusing head relative to the diffuser base. The air blade may extend through the collar of the diffuser base. Installing the diffusing vent assembly may include engaging the ductwork fixation channel with a supply duct, inserting the diffusing head into the diffuser base, and securing the diffusing head and the diffuser base using the complimentary rotational securement members.

Abstract: A composite floor is provided comprising a skeletal framework, foam core inserts, an impact resistant sheet, and a weather resistant sheet bonded together with adhesive. Recreational vehicles incorporating such floors are also contemplated, as are methods of making the composite floor.

Abstract: Recreational vehicles are provided with a tapered duct connector and/or a conditioned air receiving sleeve that is positioned in an infra-ceiling space of the vehicle. The tapered duct connector comprises a connector inlet coupled to a conditioned air passage on a wall of the conditioned air receiving sleeve, and a connector outlet coupled to the supply duct, to fluidly couple the sleeve to the supply duct. The tapered duct connector comprises a transitional duct height that increases from the connector outlet to the connector inlet. The conditioned air passage of the conditioned air receiving sleeve, the tapered duct connector, and the supply duct is contained such that air can pass from the conditioned air opening of the conditioned air receiving sleeve, through the conditioned air receiving sleeve, and into the supply duct without contacting structural components in the infra-ceiling space of the recreational vehicle.