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US 5,205,574 AGranted
Tow hitch apparatus
OwnerJohn A. Heathinventor
Life of this patent
Estimating the term…
Abstract
A hitch structure is arranged for securement in a stable relationship of a trailer in mounting the trailer and associated cargo to a horizontal support post to impart stability to the trailer organization during transport thereof.
Claims4
A tow hitch apparatus, comprising,
- a first plate spaced from and parallel to a second plate, and
- a top plate fixedly and orthogonally mounted to the first plate and the second plate, with the top plate including a projecting flange extending orthogonally beyond the first plate, and
- the top plate including a flange opening, the flange opening including a mounting sphere means mounted thereon for receiving a trailer tongue thereon, and
- at least one lock bolt orthogonally directed through the first plate, and
- the second plate including an internally threaded bore threadedly receiving the lock bolt to permit securement of a support post between the first plate, second plate, top plate, and lock bolt, and
- the top plate includes a fluid reservoir, the fluid reservoir including a transparent sight glass to permit visual observation of fluid contained within the reservoir, and a fill plug directed through the top plate into the fluid reservoir received within a fill bore permitting selective filling of the reservoir, and a threaded rod threadedly directed coaxially of the reservoir, with the threaded rod including a first end rotatably mounted within the top plate and a second end extending exteriorly of the top plate, including a handle mounted fixedly thereto, and a piston including an internally threaded coaxial bore threadedly mounted to the threaded rod, and a seal ring circumferentially mounted to the piston, and a guide rod directed through the piston and positioned fixedly within the reservoir to align the piston within the reservoir, whereupon rotation of the handle effects compression of fluid contained within the reservoir, and a first feed conduit in fluid communication with the reservoir, and a second feed conduit in fluid communication with the first feed conduit, with the second feed conduit including a second feed conduit outlet opening in communication with the flange opening to provide directing of lubricant into the flange opening.
3 more elements
Dependencies are inferred from the claim text.