US 11,904,646 B2
Hydraulic gooseneck trailer coupler system and method
William K. Chapin, Cumby, TX (US); and Ronald L. Perdue, Kennedale, TX (US)
Assigned to New Wave Gooseneck Traller Couplers, LLC, Fort Worth, TX (US)
Filed by William K. Chapin, Cumby, TX (US); and Ronald L. Perdue, Kennedale, TX (US)
Filed on May 21, 2022, as Appl. No. 17/750,344.
Application 17/750,344 is a division of application No. 15/826,716, filed on Nov. 30, 2017, granted, now 11,628,697.
Claims priority of provisional application 62/418,749, filed on Nov. 7, 2016.
Prior Publication US 2022/0274455 A1, Sep. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B60D 1/24 (2006.01); B60D 1/06 (2006.01); B60D 1/46 (2006.01); B60D 1/62 (2006.01); B60D 1/36 (2006.01)
CPC B60D 1/246 (2013.01) [B60D 1/065 (2013.01); B60D 1/36 (2013.01); B60D 1/46 (2013.01); B60D 1/62 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A piston rod to trailer coupler bushing, comprising:
a bushing top configured to affix to a bottom of a piston rod, wherein the bushing top has a bushing top internal diameter greater than an outer piston diameter of the piston rod, wherein a mounted rod sits into an opening in the bushing top and the mounted rod extends into the bushing;
a bushing bottom configured to affix to a trailer coupler, wherein the bushing bottom has a bushing bottom internal diameter greater than an outer dome diameter of the trailer coupler and a bushing bottom outer diameter less than an outer trailer coupler diameter of the trailer coupler, and wherein the bushing bottom internal diameter is greater than the bushing top internal diameter, and wherein a bushing bottom edge is chamfered;
a ramp connecting the bottom internal diameter to the top internal diameter; and
a varying bushing wall thickness.