An RV ramp door is hingedly connected near the vehicle floor for selective opening and closing by a user. A weather-resistant construction of a ramp door includes an inner foam body having an inner face and an outer face, a ramp door inner surface, a ramp door outer surface, a first layer of thermoplastic composite material disposed between the inner face of the foam body and the ramp door inner surface, and a second layer of thermoplastic composite material disposed between the outer face of the foam body and the ramp door outer surface. The ramp door inner surface may be a slip-resistant material, and the ramp door outer surface may be a fiberglass panel. The ramp door may include one or more weep holes for releasing any trapped liquid.
WEATHERPROOF RAMP DOOR
2022-06-23
Patent
Electronic Resource
English
IPC: | B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge |
NTRS | 1982
|Making aeroplanes weatherproof
Engineering Index Backfile | 1936
|Engineering Index Backfile | 1933