A protective cap device is disclosed that covers recessed areas on a vehicle used for accommodating RV tow bars during flat towing. The cap device features a circular first end and a generally rectilinear second end connected by cylindrical members. When inserted into a recess hole of the vehicle, the cap device provides a secure seal, preventing the entry of water, snow, road salt, rust, and debris into the hole. The rectilinear second end ensures a stable engagement with the recess hole's interior, even under sudden braking. The cap device is easily inserted and removed, simplifying the process of attaching and detaching tow bars. Additionally, the cap device has oil-absorbing properties which prevents rusting of the tow bar during towing operations.

The present disclosure includes an articulated coupler for attachment between a towed vehicle and a towing vehicle. The articulated coupler includes a first attachment member for attachment to the towing vehicle and a second attachment member for attachment to the towed vehicle. A ball joint member extends between the first and second attachment member. The ball joint member includes a ball at a proximal end and an elongated portion at a distal end such that the elongate portion is attachable to the first attachment member and the ball is attached to the second attachment member. The ball is retained to the second attachment member with a collar. The collar may have an aperture with an elliptical shape and a surface with a concave shape for defining a pivotal range of motion. The ball joint member may be pivotal relative to the first attachment member and may be rotatable and pivotal relative to the second attachment member.

A cover set for a vehicle hitch ball configured to be secured to and protect the vehicle ball, the cover set having a first and a second U-bolt; a cover having a left face, a right face, a top face, a front face, an open bottom, and a back face having a center hole configured to allow at least a portion of at least a standard vehicle hitch ball to fit within the center hole, a pair of upper back face holes proximate to the top face, a pair of lower back face holes proximate to the open bottom, each hole of the pair of lower back face holes being configured to allow passage of a bolt for securing the U-bolt around a vehicle hitch ball neck portion, and a back face cutout along a bottom edge of the back face for conforming to a vehicle hitch ball mount.

A lock for a gooseneck style trailer may present a tow-ball interface on a base plate with an associated rod interface. The rod may be inserted through one of a plurality of holes along a circumference of the base plate so as to also interface with structure on the trailer. The rod then may be locked into position with a locking mechanism.

A sliding housing cooperates with various mechanisms designed to receive a programmable locking cylinder. Rotation of the key between locked and unlocked positions also urges protrusions associated with the locking cylinder into engagement with an annular groove in a pull pin to selectively fix the locking assembly to the pin.

An anti-rattle device is shown and described. The anti-rattle device may include a frame configured to engage a receiver hitch and to receive a draw bar. The anti-rattle device may also include a cam engaging assembly operatively engaged with the frame, where the cam engaging assembly is selectively positionable between disengaged and engaged positions whereby the cam engaging assembly is adapted to engage the draw bar against the receiver hitch in the engaged position.

In some embodiments a lighting assembly may include at least one light-emitting device attached to at least one body. For example, some embodiments of the present invention generally relate to an assembly including at least one light-emitting device attached to a body. However, embodiments of the present invention may also relate to an assembly comprising at least one 3D-printed article attached to at least one non-3D-printed element, such as, for example, a structural element. In such an embodiment, at least one light-emitting device may be attached to the at least one 3D-printed article and/or the at least one structural element. In some embodiments, a lighting assembly may be attached to a vehicle, a house, or another structure/system.

A flexible decorative display device for attachment to a hitch receiver. The flexible display device is formed from a bendable sheet having a distal front surface, a proximal rear surface, an outer shaped outline, and interior shaped edges. The interior shaped edges form both a central opening to accommodate the trailer hitch receiver and a tongue. The tongue has tongue alignment cavity edges that define an interior tongue pin-receiving cavity. The tongue bends backwardly at a flexure line to fold back over the outside of the receiver tube, aligning the tongue pin-receiving cavity with the pin-receiving hole of the receiver.

A hitch cover is shown and described. The hitch cover may include a base having first and second surfaces, the second surface having at least one engagement member attached thereto. The hitch cover may also include a mounting bracket selectively attached to the at least one engagement member of the base and extending from the second surface wherein the mounting bracket is configured to selectively engage a hitch receiver tube.

A cushioned protection device may protect a tailgate of a tow vehicle from damage from a trailer. The cushioned protection device may be made from a polyethylene foam block having an internal cavity sized to fit snugly around a top portion of a crank jack attached to the trailer.