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US 7,726,720 B2Granted
Trailer cover system
AssigneeRoll-Rite, LLC
InventorTimothy K. Searfoss
Life of this patent
Estimating the term…
Abstract
A unit for returning a cover of a trailer comprising a first portion, a cord, and a spring. The spring is connected to the first portion. The cord having first and second ends, the first end of the cord being connectable to the first portion, the second end of the cord being connected to the cover, and the cord being wrappable around the first portion.
Claims11
A cover return unit mounted on a trailer comprising, in combination:
- a cover movable between an opened position and a closed position, wherein the cover is attached to a reel rotatable about a reel axis, and the cover is wrappable about the reel;
- a pivot pin assembly adapted to be attached to the trailer;
- a first half and a second half, wherein the first half is rotatably mounted on the pivot pin assembly;
- a cord having a first end operatively connected to the first half, and a second end operatively connected to the reel;
- and
- a spring attached to the first half and to the pivot pin assembly, wherein the spring is rotatable about a spring axis that is perpendicular to the reel axis;
- wherein movement of the cord urges the cover from the closed position which in turn urges the spring to rotate about the spring axis, producing a rotational torque that pulls on the cord in a direction urging the cover toward the closed position.
4 more elements
A cover return unit for a trailer comprising:
- a cover movable between an opened position and a closed position, wherein the cover is attached to a reel rotatable about a reel axis, and the cover is wrappable about the reel;
- a pivot pin assembly adapted to be attached to the trailer;
- a first half and a second half, wherein the first half is rotatably mounted on the pivot pin assembly;
- a cord having a first end connected to the first half, and a second end connected to the reel;
- and
- a spring attached to the first half and to the pivot pin assembly and rotatable about a spring axis;
- wherein movement of the cord urges the cover from the closed position which in turn urges the spring to rotate about the spring axis, producing a rotational torque that pulls on the cord in a direction urging the cover toward the closed position.
4 more elements
Dependencies are inferred from the claim text.