Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
425 words
A truck extension attachment for enabling a truck having a truck bed frame to carry articles projecting from the rear of the truck comprises: (a) an interior housing unit having two roller housings, each roller housing of the interior housing unit being mounted to the truck bed frame, each roller housing of the interior housing unit being positioned on opposite sides of a center line passing through the length of the truck; (b) an exterior housing unit having two roller housings, the roller housings of the exterior housing unit being positioned on opposite sides of the center line of the truck, the exterior housing unit being positioned on the truck bed frame between the interior housing unit and the rear of the truck, each roller housing of the exterior housing unit being the same distance from the center line as the roller housing of the interior housing unit on the same side of the center line; (c) a pair of vertically aligned rollers positioned within each roller housing of both the interior and exterior housing units, the rollers being composed of rubber, each roller being concave in shape, the rollers within each roller housing being vertically separated by a distance corresponding to the diameter of the retractable frame; (d) two horizontally spaced parallel frame rods retractably positioned within the roller housings of both the interior and exterior housing units, each frame rod passing through a roller housing of the exterior housing unit and a roller housing of the interior housing unit, the frame rods being frictionally engaged by the rollers within each roller housing for preventing the undesired movement of the frame rods, each frame rod having an inner and outer end, in an operational position, the frame rods partially extend beyond the rear of the truck, in a storage position, the frame rods lie completely beneath the truck; (e) a stopper positioned on the inner end of each frame rod for preventing the frame rod from coming completely out of the roller housing of the interior housing unit when the frame rods are in the operational position; (f) an elbow tube attached to the outer end of each frame rod; (g) a coupling bar joined to the end of the elbow tube not attached to the frame rod; and (h) a rear cross frame having three rear cross rods joined together by two tee bars to form a continuous rear cross frame, the bottom portion of each tee bar joined to a coupling bar for connecting the rear cross frame to the frame rods.
Claim 2
Dependent Claim
425 words
A truck extension attachment for enabling a truck having a truck bed frame to carry articles projecting from the rear of the truck comprises: (a) an interior housing unit having two roller housings, each roller housing of the interior housing unit being mounted to the truck bed frame, each roller housing of the interior housing unit being positioned on opposite sides of a center line passing through the length of the truck; (b) an exterior housing unit having two roller housings, the roller housings of the exterior housing unit being positioned on opposite sides of the center line of the truck, the exterior housing unit being positioned on the truck bed frame between the interior housing unit and the rear of the truck, each roller housing of the exterior housing unit being the same distance from the center line as the roller housing of the interior housing unit on the same side of the center line; (c) a pair of vertically aligned rollers positioned within each roller housing of both the interior and exterior housing units, the rollers being composed of rubber, each roller being concave in shape, the rollers within each roller housing being vertically separated by a distance corresponding to the diameter of the retractable frame; (d) two horizontally spaced parallel frame rods retractably positioned within the roller housings of both the interior and exterior housing units, each frame rod passing through a roller housing of the exterior housing unit and a roller housing of the interior housing unit, the frame rods being frictionally engaged by the rollers within each roller housing for preventing the undesired movement of the frame rods, each frame rod having an inner and outer end, in an operational position, the frame rods partially extend beyond the rear of the truck, in a storage position, the frame rods lie completely beneath the truck; (e) a stopper positioned on the inner end of each frame rod for preventing the frame rod from coming completely out of the roller housing of the interior housing unit when the frame rods are in the operational position; (f) an elbow tube attached to the outer end of each frame rod; (g) a coupling bar joined to the end of the elbow tube not attached to the frame rod; and (h) a rear cross frame having three rear cross rods joined together by two tee bars to form a continuous rear cross frame, the bottom portion of each tee bar joined to a coupling bar for connecting the rear cross frame to the frame rods.
Claim 3
Dependent Claim
37 words
A truck extension attachment as described in claim 1, further comprising an upright retaining bar at each end of the rear cross frame for preventing the articles supported by the rear cross frame from being laterally displaced.