Handling: hand and hoist-line implements – Grapple – Collar-engaging
Patent
1986-04-04
1988-04-12
Cherry, Johnny D.
Handling: hand and hoist-line implements
Grapple
Collar-engaging
2541343FT, 2541347, 294 11, 294 97, H02G 108
Patent
active
047369787
ABSTRACT:
A coupling device including a male coupling member and a female coupling member, the male coupling member including a shank-like body having three longitudinal slots each receiving a pivot fin, a circular spring normally biasing a first end portion of each fin into each associated slot and thereby automatically placing a second end portion of each fin in its normal coupling position, the female coupling member including a fitting connected by spacer bars to a coupler ring which receives the shank-like body, the ring having an opening which causes the fins to deflect toward an unclamped position during insertion, and after insertion the second end portions of the fins are brought into clamping engagement with the ring by the biasing force of the circular spring.
REFERENCES:
patent: 721713 (1903-03-01), Lyle
patent: 938723 (1909-11-01), Swan
patent: 1077784 (1913-11-01), Asbury et al.
patent: 1130775 (1915-03-01), Toffey
patent: 2142290 (1939-01-01), Slocum
patent: 2231919 (1941-02-01), Kent
patent: 3041089 (1962-06-01), Purves
patent: 3108835 (1963-10-01), Rowekamp
patent: 3330533 (1967-07-01), Blume
patent: 3445133 (1969-05-01), Reischl
Cherry Johnny D.
Katimex-Cielker GmbH
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