Rubber covered cable
OwnerRussell W. Tolleinventor
Life of this patent
Estimating the term…
Abstract
A flexible, high strength steel cable having a continuous, flexible outer covering of vulcanized rubber thereon is disclosed. The rubber coating makes the cable easier to handle and use, and reduces flaring of the wires when the cable is cut. There is less tendency for the cable to slip when wrapped around objects to be secured and/or lifted, and marring of such objects by the cable is reduced. In addition to these advantages, the coating on the cable protects the steel substrate from corrosion during weathering, exposure to sea water, or contact with corrosive chemicals. Vulcanization of the rubber coating is carried out at high pressure to provide it with a high Durometer hardness and other desirable properties.
Claims8
A continuous process for producing a steel cable having an outer coating of vulcanized rubber thereon, comprising:
- a. applying an outer coating of a vulcanizable rubber compound to the outer surface of a flexible, high tensile strength steel cable to provide a coated cable,
- b. pulling said coated cable through a heated die having an inside diameter smaller than the outside diameter of the coated cable, thereby vulcanizing said outer coating and reducing the thickness thereof, whereupon
- c. said steel cable is covered with a flexible, continuous, vulcanized outer coating of rubber, and wherein the diameter of the covered cable is significantly less than prior to passage thereof through said die.
Dependencies are inferred from the claim text.