Land vehicles – Wheeled – Articulated vehicle
Patent
1989-09-18
1991-03-19
Mitchell, David M.
Land vehicles
Wheeled
Articulated vehicle
280477, 114344, B60P 310
Patent
active
050004719
ABSTRACT:
A boat hitch for latching or hitching the bow of a boat to a boat trailer to provide efficient and safe withdrawal of a boat from the water and hitching the boat to the trailer to enhance the safety factor in towing a boat and trailer over the highway. The boat hitch includes a pivotal latch structure mounted on the forward end portion of a boat trailer which is associated with a cam-type keeper on the bow of the boat in which the keeper includes a curved cam ramp extending from a shallow forward end to a rearward end having greater depth and a keeper surface generally extending vertically at the rearward end of the cam ramp. The latch includes a pivotal pawl that is locked in a vertical position in engagement with the keeper surface when the boat is locked on the trailer with the pawl being manually released and pivoted to a generally rearwardly extending horizontal position for releasing the boat to enable it to move off the trailer when launching the boat into a body of water.
REFERENCES:
patent: 3557741 (1971-01-01), Teasdale
patent: 3750805 (1973-08-01), Finney
patent: 3963263 (1976-06-01), Whitlock
patent: 4114920 (1978-09-01), Boettcher
patent: 4463965 (1984-08-01), Lawson
patent: 4623161 (1986-11-01), Sprague
patent: 4641598 (1987-02-01), Hodges
patent: 4641851 (1987-02-01), Knies
Boehler A. M.
Mahaffey H. E.
Mitchell David M.
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