Felling Trailers Inc. was recently awarded a U.S. patent grant for their Air Bi-fold Ramps System, U. S. Patent 11,613,197, the manufacturer reported.
The Air Bi-fold Ramps system was first introduced to the construction and paving industry at the 2020 CONEXPO-CON/AGG show. The Air Bi-Fold Ramps system was featured on Felling's 25-ton FT-50-3 LP, a tri-axle low-profile flatbed tag trailer.
“The patent helps to protect our invention and maintain Felling Trailers’ presence in the marketplace as innovative solutions provider both today and in the future,” said Patrick Jennissen, Felling’s vp of sales and marketing.
A key feature of Felling's design is the operation of the flip ramp, the company noted. The flip ramp locks out fully when extending, preventing scraping or marring of the ground. Another key feature is Felling' controlled flow air ramp technology, which provides for soft ground contact of the ramp, keeping new surfaces free from being damaged.
The Air Bi-Fold Ramps are 45-in. wide by 11 ft., and wood inlaid. The 11’ Air Bi-Fold ramps were designed to accommodate the load angle necessary for loading cumbersome low-clearance equipment such as paving equipment and directional drills.
The Air Bi-Fold ramps’ length provides the operator with a gentler, more gradual incline to provide ease in loading/unloading with its 9.5-degree load angle with the option of air ride suspension when the air is dropped.
“Air-operated ramps are far more reliable than those powered by an electric/hydraulic pump, making it a clear choice for many paving crews,” said Nathan Uphus, Felling ‘s sales manager.
The patented air bi-fold ramps system is currently available on 20, 22.5, 25, and 30-ton tag series with plans to expand into the semi-trailer lines.