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A chassisless fiberglass tank trailer. The tank trailer includes a tank shell formed of a fiberglass reinforced isotholic resin, with fiberglass filaments bias-wound at an angle of approximately 45°. The tank shell has a forward head and a rear head for forming a fluid carrying container. A forward

A chassisless fiberglass tank trailer. The tank trailer includes a tank shell formed of a fiberglass reinforced isotholic resin, with fiberglass filaments bias-wound at an angle of approximately 45°. The tank shell has a forward head and a rear head for forming a fluid carrying container. A forward cradle is attached to the tank shell with mounting portions used for mounting a fifth wheel member, and a rear cradle is attached to the tank shell and having mounting portions used for mounting a rear wheel carriage. The cradles further include a plurality of holes extending therethrough and a plurality of protrusions extending therefrom. The holes and protrusions interact with the resin and fiberglass winding to rigidly hold the cradles to the tank shell. A plurality of circumferential reinforcing ribs are located between each of the mounting portions and at other desired locations longitudinally on the tank shell. The ribs are also molded in with fiberglass reinforced resin. Each rib has an enlarged upper portion for providing rollover protection. Prior to applying the fiberglass resin to the cradles and ribs, circumferential bands are positioned thereon for providing additional strength. Openings in the trailer include overflow protection. Baffles may be provided for preventing undesired fluid movement in the trailer.

대표청구항 ▼

A tank trailer comprising: a fiberglass tank having an outer wall; a cradle comprising: an upper portion positionable adjacent said outer wall of said tank; and a plurality of longitudinally spaced mounting portions extending from said upper portion, each mounting portion including first and second

A tank trailer comprising: a fiberglass tank having an outer wall; a cradle comprising: an upper portion positionable adjacent said outer wall of said tank; and a plurality of longitudinally spaced mounting portions extending from said upper portion, each mounting portion including first and second leg portions on opposite sides of a vertical center line of said tank; a plurality of circumferential reinforcing ribs extending around said outer wall of said tank and said upper portion of said cradle, said ribs being longitudinally positioned between adjacent mounting portions; and a fiberglass layer disposed around said ribs and a portion of said upper portion of said cradle between adjacent mounting portions, whereby said cradle and ribs are rigidly molded onto said tank.