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AssigneeBedloe Industries LLC
InventorsThomas A. Marchese, Jerry R. Smerecky
Estimating the term…
A method for manufacturing a railcar coupler knuckle includes providing cope and drag mold portions having internal walls defining at least in part perimeter boundaries of a knuckle mold cavity; positioning a first internal core within either the cope mold or the drag mold portions, the first internal core configured to define a kidney cavity and a pivot pin hub as a single void within the knuckle; positioning a second internal core within either the cope mold portion and the drag mold portion, the second internal core configured to define a finger cavity; closing the cope and drag mold portions with the two internal cores therebetween; and at least partially filling the mold cavity with a molten alloy, the molten alloy solidifying after filling to form the knuckle, wherein the first internal core defines the kidney cavity and the pivot pin hub of the coupler knuckle, and wherein the second internal core defines the finger cavity of the knuckle.
A method for manufacturing a railcar coupler knuckle, comprising:
A method for manufacturing a railcar coupler knuckle with increased strength or fatigue life comprising utilizing a core that creates a single, thick rib at a horizontal centerline of the knuckle that passes through a pivot pin hub thereof, wherein the single, thick rib extends from a flag hole of a finger cavity to an opposite side of the knuckle from the flag hole.
A railroad coupler knuckle having a single, solid rib at a horizontal centerline of the knuckle that passes through a pivot pin hub thereof, wherein the single, solid rib extends generally from a flag hole of a finger cavity of the knuckle to an opposite side of the knuckle from the flag hole.
A railcar coupler knuckle, comprising:
Dependencies are inferred from the claim text.