Joints and connections – Structurally installed in diverse art device
Patent
1992-09-10
1993-04-27
Kundrat, Andrew V.
Joints and connections
Structurally installed in diverse art device
403141, 280512, F16D 100
Patent
active
052056660
ABSTRACT:
An improved trailer coupler is provided for a trailer having a forwardly extending tongue, which consists of a housing fixed on and extending forwardly from the tongue. A pair of opposed jaws are pivoted on vertical axes on the housing. Each jaw has an inner side formed with a spherical concavity for embracing a hitch ball and a surface for forcing said improved trailer coupler to align with a said hitch ball. A jaw locking bail has a bight portion with a finger tab to facilitate operation of the bail and a pair of side portions, each with an ear extension. The side portions are horizontally pivoted on the housing at the ear extensions at opposite sides of the housing. The ball is swingable forwardly and downwardly from an elevated retracted position to a horizontal jaw-locking position, wherein the side portions completely engage the outer sides of the jaws and the bight portion completely engages the forward ends of the jaws in the closed positions of the jaws. A closure compression spring is located inwardly at one horizontally pivoted ear extension for biasing the bail towards the jaw-locking position.
REFERENCES:
patent: 1254199 (1918-01-01), Brice
patent: 3046038 (1962-07-01), Hollis
patent: 4042256 (1977-08-01), Lepp
patent: 4444410 (1984-04-01), Martin
patent: 4657276 (1987-04-01), Hameri
patent: 4817979 (1989-04-01), Goettker
Kundrat Andrew V.
Miller Richard L.
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