Sling with protective covering
AssigneeLift-All Company, Inc.
InventorGregory Babinchak
Life of this patent
Estimating the term…
Abstract
A synthetic roundsling which has an endless load-bearing core with a plurality of loops of synthetic fibers for use in harsh environments. A tubular cover is provided for loosely containing the load-bearing core so that the fibers in the core are movable relative to each other and to the cover. The cover is waterproof to prevent the core from absorbing liquid. The core is prevented from increasing in weight and decreasing in flexibility due to liquid being absorbed by the core, thereby insuring that the roundsling will stay light and flexible even in harsh environmental conditions. A second, outer cover may provide additional protection to the core to protect the core from physical damage.
Claims17
A synthetic roundsling comprising:
- an endless load-bearing core having a plurality of loops of synthetic fibers in the sling core;
- a tubular cover for containing the load-bearing core loosely so that the fibers in the core are movable relative to each other and to the cover, the cover being formed of at least one layer of non-woven, extruded, flexible waterproof/water resistant tubular material which loosely overlays the core to prevent the core from absorbing liquid, the cover having a first end and a second end which overlap;
- a flexible sealing member provided over a second end of the cover such that respective ends of the sealing member are positioned on either side of the second end of the cover, the sealing member being formed of waterproof/water resistant material and being sealed to the cover which prevents the core from absorbing liquid;
- whereby the core is prevented from increasing in weight and decreasing in flexibility due to liquid being absorbed by the core, thereby insuring that the roundsling will stay light and flexible even in harsh environmental conditions.
A synthetic sling for use in harsh environments, the sling comprising:
- a load-bearing core having a plurality of loops of synthetic fibers;
- a cover for containing the load-bearing core loosely so that the fibers in the core are movable relative to each other and to the cover, the cover being formed of at least one layer of non-woven, extruded waterproof/water resistant material, the cover having a first end and a second end, the second end extending over the first end;
- a flexible sealing member provided over the second end of the cover, respective ends of the sealing member are positioned on either side of the second end of the cover, the sealing member being formed of waterproof/water resistant material and being sealed to the cover, the cover and the sealing member cooperate to enclose the core within the cover;
- whereby the cover and the sealing member prevent the core from absorbing liquid and prevent the core from increasing in weight and decreasing in flexibility due to liquid being absorbed by the core, thereby insuring that the sling will stay light and flexible even in harsh environmental conditions.
A synthetic sling for use in harsh environments, the sling comprising:
- a load-bearing core having a plurality of loops of synthetic fibers;
- an inner cover for containing the load-bearing core loosely so that the fibers in the core are movable relative to each other and to the inner cover, the inner cover being formed of at least one layer of non-woven, extruded waterproof/water resistant material, the inner cover having a first end and a second end, the second end extending over the first end, the inner cover having a flexible sealing member provided over the second end, respective ends of the sealing member are positioned on either side of the second end of the inner cover, the sealing member being formed of waterproof/water resistant material and being sealed to the inner cover, the inner cover and the sealing member cooperate to enclose the core within the inner cover;
- an outer cover, the outer cover being larger than the core and the inner cover and being generally spaced from the inner cover, whereby the outer cover can move with respect to the inner cover;
- whereby a combination of the inner and outer covers protect the core from physical damage and prevent the core from absorbing liquid and from increasing in weight and decreasing in flexibility due to liquid being absorbed by the core, thereby insuring that the sling will stay light and flexible even in harsh environmental conditions.
Dependencies are inferred from the claim text.