US 8,863,630 B2Granted

Synthetic rope for powered blocks and methods for production

AssigneeHampidjan hf

InventorHjortur Erlendsson

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Abstract

Disclosed is a method for producing a high strength synthetic strength member (7) containing rope (1) capable of being used with powered blocks where such rope has lighter weight and similar or greater strength than steel wire strength member containing ropes used with powered blocks. Disclosed also is the product resulting from such method. The product includes a synthetic strength member, a first synthetic portion (9) and a second synthetic portion. The first synthetic portion is enclosed within the strength member and the second synthetic portion is situated external the strength member. At least a portion of the second synthetic portion also is situated internal a sheath (8) formed about the strength member. The second synthetic portion has a minimal of 8% at a temperature of between negative 20 and negative 15° C.

Claims24

Dependent claims

A mainly synthetic rope (1) produced by a process for producing a mainly synthetic rope (1), the process having steps of:

a) providing a strength member (7) formed mainly of synthetic material;
b) situating about the outside of the strength member (7) a substance capable of exhibiting during at least one of its phases an adhesive substance (9) exhibiting a certain elasticity at a certain temperature range, the process characterized by steps of:
(i) selecting for at least the strength member (7) at least a strength member (7) formed mainly of synthetic material;
(ii) selecting for a sheath (8) at least a braided sheath;
(iii) selecting for the adhesive substance (9) a substance that:
a) is capable of adhering the strength member (7) to the braided sheath (8) that is formed about the strength member (7);
and
b) exhibits:
(i) a minimal elasticity of greater than 8% when at a temperature of between negative twenty and negative fifteen degrees Centigrade;
and
(ii) a minimal elasticity of greater than 10.1% when at a temperature of between negative fifteen and negative five degrees Centigrade;
and
c) forming the braided sheath (8) about the combination of the strength member (7) and the substance capable of exhibiting during at least one of its phases the adhesive substance (9) exhibiting the selected certain elasticity at the certain temperature range, and selecting to form the braided sheath (8) about the combination of the strength member (7) and the substance capable of exhibiting during at least one of its phases the adhesive substance (9) exhibiting the selected certain elasticity at the certain temperature range when the substance is in a flowable state.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/393,760Filed 1 Sep 2010
Published: US 2012/0160082 A128 Jun 2012
Granted: 21 Oct 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification31 codes

D07B 1/02
Constructional features of ropes or cables: ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin,…
D04C 1/12
Braid or lace serving particular purposes: cords, lines, or tows
D07B 1/165
Ropes or cables with an enveloping sheathing or inlays of rubber or plastics: characterised by a plastic or rubber inlay
D07B 1/025
Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics: comprising high…