Hoisting sling

Details Hoisting sling Hoisting sling

1993-06-14

1994-07-26

Kramer, Dean J.

Handling: hand and hoist-line implements

Grapple

Expanding

294 8211, B66C 166

Patent

active

053322720

ABSTRACT:
A hoisting sling is provided that in one embodiment (100) features a pivot assembly (4) secured to at least one end of a flexible elongate lifting element such as a cable, rope or chain. A cross bar (6) is pivotally mounted in assembly (4) and is operative to pivot to a position enabling assembly (4) to be inserted through an opening in an object to be hoisted and thence pivot so as to bridge across the opening to enable the lifting element to hoist the object. In another embodiment (150), the pivot assembly (14) features a two-piece cross bar (18 and 18') that are operative to pivot towards each other to a position enabling assembly (14) to be inserted through the object opening and thence pivot away from each other to bridge across the opening.

REFERENCES:
patent: 106964 (1870-11-01), McClellan
patent: 1744854 (1930-04-01), Weed
patent: 1890734 (1932-12-01), Kuberka
patent: 1918007 (1933-07-01), Woodruff
patent: 2315146 (1943-02-01), White
patent: 2356146 (1944-08-01), Caldwell
patent: 2541449 (1951-02-01), Vickers
patent: 2584124 (1952-02-01), Gustafson
patent: 2818296 (1957-12-01), Brennan et al.
patent: 2947994 (1961-03-01), Goldsmith
patent: 3132890 (1964-05-01), Beaudet
patent: 3284125 (1966-11-01), Blaske, Sr. et al.
patent: 3307871 (1967-03-01), Russell et al.
patent: 3332118 (1967-07-01), Temple et al.
patent: 3385627 (1968-05-01), Zumbo
patent: 3390864 (1968-07-01), Searcy et al.
patent: 4838595 (1989-06-01), Spillar

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