Portable ramp jack

Abstract

A lightweight portable ramp jack is made of a solid alloy base. The Portable Ramp Jack is designed to rapidly lift the outside tandem wheel of a multi-wheeled trailer. The portable ramp jack is to be placed in front of, or behind, the inside tandem wheel of a trailer for raising the outside tandem wheel off the ground when the vehicle is moved onto the ramp. The jack is designed primarily to lift the outside tandem wheel to allow for an easier method to attach ice and snow chains to the trailer outside tandem wheels or any other work where a slight elevation off the ground is required. Each side of the portable tandem wheel ramp jack is equipped with two permanently mounted handles to allow ease of positioning from either side. Gripping cleats are mounted to the underside of the ramp to prevent it from skidding in snow or icy conditions. The lateral shape of the ice and snow cleats is that of an open vee. The base of the Vee is aligned toward the center of the portable ramp jack for better gripping ability. These gripping cleats, triangular in shape, are mounted laterally to the underside of the portable ramp jack. Mounted laterally on the top of the ramp jack are two positioning bumps which alert the driver when the inside wheel is in a locked and safe position.

We claim:  
     
         1 . A lightweight portable ramp jack is made of a solid alloy base. The Portable Ramp Jack is designed to rapidly lift the outside tandem wheel of a multi-wheeled trailer. The portable ramp jack is to be placed in front of, or behind, the inside tandem wheel of a trailer for raising the outside tandem wheel off the ground when the vehicle is moved onto the ramp. The jack is designed primarily to lift the outside tandem wheel to allow for an easier method to attach ice and snow chains to the trailer outside tandem wheels or any other work where a slight elevation off the ground is required. Each side of the portable tandem wheel ramp jack is equipped with two permanently mounted handles to allow ease of positioning from either side. Gripping cleats are mounted to the underside of the ramp to prevent it from skidding in snow or icy conditions. The lateral shape of the ice and snow cleats is that of an open vee. The base of the Vee is aligned toward the center of the portable ramp jack for better gripping ability. These gripping cleats, triangular in shape, are mounted laterally to the underside of the portable ramp jack. Mounted laterally on the top of the ramp jack are two positioning bumps which alert the driver when the inside wheel is in a locked and safe position. 
 The ramp jack body is manufactured of a lightweight solid alloy forming the base support of the portable ramp jack as it sits the ground.    There are two permanently mounted handles which will allow easy positioning from either side of the portable ramp jack;    There are gripping cleats mounted to the underside of the ramp preventing the ramp jack from skidding, especially in snow or icy conditions. These gripping cleats, triangular in shape, are mounted laterally to the underside of the ramp jack;    There are two aligning bumps permanently mounted laterally on the top portion of the ramp jack. These bumps to alert the driver when the inside tandem wheel is in position.