Handling: hand and hoist-line implements – Hoist-line slings
Patent
1995-06-30
1997-11-18
Kramer, Dean
Handling: hand and hoist-line implements
Hoist-line slings
B66C 112
Patent
active
056880111
ABSTRACT:
A sling for lifting a heavy work piece (e.g. a pipe section) including a strap of flexible, fabric-like material having first and second, looped strap ends, and first, outer & second, inner strap surfaces. The first, outer strap surface has a plurality of eye-loops also of flexible, fabric-like material affixed thereto and spaced along the length thereof. The first, looped, strap end is selectively attachable to one of the plurality of eye-loops to form a closed lifting loop. The strap preferably is made of a fabric material of Nylon.TM.. The eye-loops are preferably constructed of the same material as the strap, and are preferably attached to the strap by stitching. Each eye-loop is preferably separated from the first strap end by a distance sufficient to allow each eye-loop to be used in conjunction with the first strap end to form a snug fit about a different, standard-size pipe. An attachment device (e.g. a shackle) is included for selectively attaching the first strap end to an appropriately selected one of the plurality of eye-loops. The second, opposite, looped end, as well as the other spaced, eye-loops, are used, when needed, for attachment or rigging points for, for example, crane hooks, chain hooks, etc. Exemplary riggings techniques are illustrated in FIGS. 6, 8 & 9. Two exemplary embodiments for the sling strap of the system are illustrated in FIGS. 1 & 2 and 6, respectively.
REFERENCES:
patent: 1548190 (1925-08-01), Cronqvist
patent: 2357182 (1944-08-01), Farmer
patent: 2508795 (1950-05-01), Nielson
patent: 3701559 (1972-10-01), Marino et al.
patent: 4431226 (1984-02-01), Weilert
patent: 4441748 (1984-04-01), St. Germain
patent: 4737069 (1988-04-01), Coblentz
patent: 4993769 (1991-02-01), Chapalain
patent: 5308101 (1994-05-01), Monty
Browder Kenneth W.
Kramer Dean
Pugh C. Emmett
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