Hitch ball

Details Hitch ball Hitch ball

1989-08-11

1991-02-19

Mitchell, David M.

Land vehicles

Wheeled

Articulated vehicle

384212, 403125, 403135, B60D 106

Patent

active

049937391

ABSTRACT:
A hitch ball (20) with a mating first set of shells (25a and 25b) and optionally a second set of shells (27a and 27b) to increase the diameter of the ball to accommodate various sized hitch assemblies (11) are described. In a preferred form detents (25e and 25f) in the first set of shells are provided in a recess (23) in the ball. Detents (27c and 27d) are provided on the detents (25e and 25f) of the first set of shells. The invention provides safe and effective mounting of the sets of shells on the hitch ball and prevents the shells being used on a conventional hitch ball which might not be rated for the increased capacity provided by the larger ball size.

REFERENCES:
patent: 3307857 (1966-06-01), Robertson
patent: 3376051 (1968-04-01), Bacher
patent: 3630546 (1971-12-01), Church
patent: 3968981 (1976-07-01), Suarez
patent: 4072320 (1978-02-01), Powell
patent: 4186940 (1980-02-01), Pillars
patent: 4319766 (1982-03-01), Corteg
patent: 4433854 (1984-02-01), Smith
patent: 4577988 (1986-03-01), Gollub et al.
patent: 4772039 (1988-09-01), Cook

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