Abrasive material transport hose with wear detecting sensors
AssigneeThe Goodyear Tire & Rubber Company
InventorsRonald Marcel Chevalier, Andre Georges Cook, Thomas Goodsell Hutchins
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Abstract
The useful life of an abrasive material transport hose (10) can be maximized if the hose is repositioned at the first signs of internal wear. This is accomplished by disposing at least two wear sensing elements (17, 21), each at a specified distance from the inwardmost surface of the inner tube (12), and each monitoring a condition indicative of wear of the hose (10) at its specified distance from the inwardmost surface of the inner tube. When the innermost wear sensing element (17) implies wear, the hose can be repositioned to extend the useful life until the outermost wear sensing element (21) indicates wear requiring replacement of the hose.
Claims10
A hose for transporting abrasive material including an inner lining, a plurality of layers of reinforcement ply disposed over the inner lining, a first wear sensing element disposed in a first sensed layer at a first distance from the innermost surface of the inner lining, the hose characterized by:
- a second wear sensing element in a second sensed layer disposed at a second distance from the innermost surface of inner lining, the second distance being greater than the first distance;
- a second wear sensing device, connected to the second wear sensing element for providing an indication of propagation of a hose wear condition from the first sensed layer to the second sensed layer;
- the first wear sensing element comprises a first pair of sensor wires each having a first end extending to a first end of the hose and a second end extending to a second end of the hose;
- and
- the second wear sensing element comprises a second pair of sensor wires each have a first end extending to the first end of the hose and a second end extending to the second end of the hose;
- the second end of the first pair of sensor wires are connected to one another;
- and
- the second end of the second pair of sensor wires are connected to one another.
A hose for transporting abrasive material, characterized by:
- an inner lining of elastomeric tube(s), two or more reinforcement layers applied over the inner lining, an outer cover applied over the outermost one of the reinforcement layers, wherein the hose has a length and two ends, characterized by:
- a first wear sensing element disposed at a distance from an interior surface of the hose, for indicating a wear condition resulting from transporting the abrasive material;
- a second wear sensing element, disposed in a second sensing layer between the reinforcement layers, at a greater distance from the interior surface of the hose, comprising a pair of sensor wires running substantially the entire length of the hose, and having one end of the sensor wires connected with one another and the other end connected to a second wear sensing device, said second wear sensing element also for indicating a wear condition resulting from transporting the abrasive material;
- and
- the pair of sensor wires of the second wear sensing element extend spirally over the length of the hose and are connected at end to a socket.
Dependencies are inferred from the claim text.