Land vehicles – Wheeled – Articulated vehicle
Patent
1995-04-13
1996-04-30
Focarino, Margaret A.
Land vehicles
Wheeled
Articulated vehicle
280511, 411237, 411910, B60D 128, B60D 106
Patent
active
055118143
ABSTRACT:
A trailer ball lock apparatus includes an externally threaded connecting bolt member which has a longitudinal axis and which includes a first longitudinal slot. A ball assembly includes an internally threaded, longitudinally oriented, connecting-bolt-receiving well and is adapted to receive the connecting bolt member. The ball assembly includes a top ball portion and a base portion. The ball portion includes a pin-receiving well portion located on a first side of the connecting-bolt-receiving well and includes a pin-receiving channel portion located on a second side of the connecting-bolt-receiving well. A locking pin assembly includes a lock pin portion adapted to extend through the pin-receiving channel portion into the pin-receiving well portion of the ball portion. The lock pin portion is placed in registration with the first longitudinal slot of the connecting bolt member for preventing rotation of the connecting bolt member within the ball assembly. A second longitudinal slot may be located in the connecting bolt member. The second longitudinal slot is oriented perpendicular to the first longitudinal slot. The pin-receiving channel portion includes an internally threaded portion, and the locking pin assembly includes an externally threaded portion adapted to screw into the internally threaded portion of the pin-receiving channel portion. The externally threaded portion of the locking pin assembly has a receiver portion located longitudinally at one end of the externally threaded portion.
REFERENCES:
patent: D342472 (1993-12-01), Harper
patent: 4230336 (1980-10-01), Avrea et al.
patent: 4542914 (1985-09-01), Shropshire
patent: 4889356 (1989-12-01), Morris
patent: 5087064 (1992-02-01), Guhlin
patent: 5222755 (1993-06-01), O'Neal
patent: 5280941 (1994-01-01), Guhlin
patent: 5290057 (1994-03-01), Pellerito
patent: 5322316 (1994-06-01), Wheeler
patent: 5395131 (1995-03-01), Herrick
Focarino Margaret A.
Zeender F.
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