US 12,269,518 B2
Knuckle pin
Zachary Ryan Brook, Leola, PA (US); Manuel Tavares, West Chester, PA (US); Aaron Stern, West Chester, PA (US); and Wayne H. Murphy, Pottstown, PA (US)
Assigned to Pennsy Corporation, West Chester, PA (US)
Filed by Pennsy Corporation, West Chester, PA (US)
Filed on Mar. 20, 2023, as Appl. No. 18/123,872.
Application 18/123,872 is a continuation of application No. 16/775,217, filed on Jan. 28, 2020, granted, now 11,608,095.
Claims priority of provisional application 62/797,977, filed on Jan. 29, 2019.
Prior Publication US 2024/0092403 A1, Mar. 21, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B61G 7/00 (2006.01); B61G 3/04 (2006.01)
CPC B61G 7/00 (2013.01) [B61G 3/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A knuckle pin for use in a railway vehicle coupler assembly having a coupler with pulling lugs and buff shoulders, the knuckle pin comprising:
a) a cylindrical body with an upper end and a lower end, the cylindrical body comprising a wall and having an inner diameter and an outer diameter, wherein the outer diameter includes the thickness of the wall;
b) a slot in the cylindrical body;
c) the cylindrical body having a first vertical edge and a second vertical edge;
d) the first and second vertical edges defining the slot;
e) wherein the knuckle pin outer diameter is reduced when draft and buff forces are received, resulting in coupler loading forces to be received by coupler pulling lugs and coupler buff shoulders.