Land vehicles – Wheeled – Articulated vehicle
Patent
1994-04-22
1995-03-07
Hill, Mitchell J.
Land vehicles
Wheeled
Articulated vehicle
280511, 411292, 411348, 411351, 411948, B60D 106
Patent
active
053951310
ABSTRACT:
A generally spherical hitch ball has a downwardly extending neck and an outwardly extending flange which engages against the trailer hitch of a towing vehicle. A threaded shaft extends downwardly from the flange through an opening in the hitch. The coupling device is fixed to the hitch by a nut which is threaded on the shaft and engages a washer against the hitch. The nut is retained on the threaded shaft and positively prevented from escaping by a cylindrical pin which extends through an inclined hole formed in the hitch ball and the shaft. The pin has a head which is biased upwardly by a spring against the trailer arm where it fits over the ball. When the trailer arm is locked in place the pin head is inaccessible and the nut may not be removed.
REFERENCES:
patent: Re28187 (1974-10-01), Longenecker
patent: 466389 (1892-01-01), Waterhouse
patent: 804803 (1905-11-01), Garrett
patent: 815497 (1906-03-01), Watson
patent: 1709539 (1929-04-01), Poelman
patent: 2718252 (1955-09-01), Schuster
patent: 3226133 (1965-12-01), Geresy
patent: 3790192 (1974-02-01), Green
patent: 4230336 (1980-10-01), Avrea et al.
patent: 4542914 (1985-09-01), Shropshire
patent: 4794769 (1989-01-01), Persons
LandOfFree
Anti-theft hitch ball does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Anti-theft hitch ball, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-theft hitch ball will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1401853