Cast ductile iron hitch bar

Details Cast ductile iron hitch bar Cast ductile iron hitch bar

1994-08-18

2000-01-04

Boehler, Ann Marie

Land vehicles

Wheeled

Articulated vehicle

2804915, 280511, B60D 146

Patent

active

060101423

ABSTRACT:
A hitch bar includes an integral post and mounting rack cast from ductile iron. A midline channel in the mounting rack and face cavities in the post significantly reduce the overall mass of the hitch bar. The physical properties of the cast ductile iron material serve to increase the overall towing capacity above that possible with rolled steel hitch bars of prior art design.

REFERENCES:
patent: 3607458 (1971-09-01), Hunsaker
patent: 3738684 (1973-06-01), Lusk
patent: 4033601 (1977-07-01), Lindahl et al.
patent: 4067756 (1978-01-01), Koo et al.
patent: 4078823 (1978-03-01), McBride
patent: 4148498 (1979-04-01), Taylor, Jr.
patent: 4697819 (1987-10-01), Cascone
patent: 4737199 (1988-04-01), Kovacs
patent: 4989892 (1991-02-01), Kerins et al.
patent: 5265899 (1993-11-01), Harrison
SAE Handbook 1981, Society of Automotive Engineers, Inc., pp. 7.07-7.08.

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