Trailer hitch ball assembly

Details Trailer hitch ball assembly Trailer hitch ball assembly

1989-01-12

1989-12-26

Hill, Mitchell J.

Land vehicles

Wheeled

Articulated vehicle

280504, 280511, 403131, 403328, B60D 106

Patent

active

048893560

ABSTRACT:
A trailer hitch ball assembly includes a vertical post for attachment to a vehicle drawbar. The post has a smooth cylindrical upper portion and a circumferential retainer groove for receiving and retaining a ball while permitting rotation of the ball. The ball includes a central bore which receives the post upper portion and a retainer screw for engaging the retainer groove. A threaded lower portion and two nuts are utilized to secure the post on the drawbar. The threaded portion may include an exposed free portion for storing a replacement ball of the same or different diameter.

REFERENCES:
patent: 2297182 (1942-09-01), Weiss
patent: 4433854 (1984-02-01), Smith
patent: 4483638 (1984-11-01), Marie et al.
1988 Draw-Title Catalog, p. 42, Convert-A-Ball Brochure.

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