Back to results
US 8,720,711 B2Granted
Railcar coupler core with vertical parting line and method of manufacture
OwnerF. Andrew Nibouar, Jerry R. Smerecky +3inventors
InventorsF. Andrew Nibouar, Jerry R. Smerecky, Kelly Day, Vaughn Makary, Nick Salamasick
Life of this patent
Estimating the term…
Abstract
A method of casting a core includes the steps of preparing a first half of a corebox, preparing a second half of a corebox such that the parting line of a core formed from the first and second coreboxes runs along the vertical axis of the core.
Claims8
A method of casting a coupler knuckle, said method comprising the steps of:
- preparing a first half of a corebox;
- preparing a second half of a corebox such that the parting line of a coupler knuckle core formed from said first and said second coreboxes runs along the vertical axis of said core;
- and
- using said coupler knuckle core to form a knuckle having a top knuckle pulling lug with a front face, said front face having a wall thickness with a substantially constant thickness from a top of said front face of said top knuckle pulling lug to a bottom of the front face of said top knuckle pulling lug.
1 more element
Dependencies are inferred from the claim text.