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US 6,520,360 B1Granted
Housing for draft gear
AssigneeMiner Enterprises, Inc.
InventorsAndrew W. Withall, David G. Anderson, Guenter Manigel, Robert S. Toms, Jr.
Life of this patent
Estimating the term…
Abstract
A housing for a railroad car draft gear is disclosed. The draft gear housing has an axially elongated tubular portion comprised of layers. At least one of the layers of the draft gear housing is formed from a filament wound structure or composite material, and an additional layer may be steel.
Claims20
An elastomeric spring pad draft gear comprising;
- a housing having a closed end, an open ends and a cylindrical portion defining an axial length of said housing between said closed end and said open end, said cylindrical portion including a series of layers, a first of said layers being a filament wound structure layer, a second of said layers being steel, and with said closed end being steel and said cylindrical portion being secured thereto;
- an elastomeric pad stack carried within said cylindrical portion, said elastomeric pad stack including a series of elastomeric pads, with each pad defining a generally centralized hole opening at opposite ends;
- and
- a guide rod having a base secured to said closed end and a shaft portion passing through said hole in said elastomeric pads and extending toward said open end of said housing.
1 more element
A draft gear comprising
- a housing having a closed end, an open end, and a barrel portion defining an axial length of said housing between said closed end and said open end, said barrel portion including first and second layers, with said first layer being a filament wound structure layer, and with said second layer extending from said closed end to said open end;
- an elastomeric spring assembly carried within said barrel portion of said housing;
- and
- a plunger operably biased by said spring assembly and mounted for axial movement in the open end of said housing and against which an external force can be applied.
1 more element
A railroad car draft gear comprising:
- a housing having a closed end, an open end, and a tubular portion defining an axial length of said housing between said closed end and said open end, and wherein said tubular portion of said housing is comprised of a series of layers including an outer filament wound structure layer and an inner metallic layer;
- and
- a spring assembly arranged within said housing for resisting impacts imparted to said draft gear.
Dependencies are inferred from the claim text.