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AssigneeS. S. White Technologies Inc.
InventorRichard J. Schwartz
Estimating the term…
A wire wound flexible shaft has layers of wire wound one upon another, with a dry film of lubricant bonded to the outer surfaces of a number of the outer layers; or if desired, to the outer surfaces of all layers of the shaft. The lubricant is applied by preheating the partially completed flexible shaft to a temperature substantially above 212° F. but below the decomposition temperature of the lubricant. A liquid medium comprising a carrier and particles of the lubricant is sprayed onto the shaft surface, causing the liquid to vaporize and the lubricant particles to be deposited on the shaft. One or more successive wire layers may then be wound onto the partially completed shaft and the spraying step repeated. Thereafter the shaft is heated to cause the lubricant particles to bond to the adjacent wire layers and to reduce internal stresses in the shaft.
A heat treated wire wound flexible shaft for transmitting torque, said shaft having a first wire layer with an outer surface and a second wire layer wound around the outer surface of the first layer, wherein a dry film of a lubricant is bonded to the outer surface of the first layer,
A wire wound heat treated flexible shaft for transmitting torque, said shaft having a plurality of wire layers wound one atop another, wherein a dry film of a lubricant comprising fused particles is fused to the outer surfaces of two or more of the layers,
A heat treated wire wound flexible shaft for transmitting torque, said shaft having a first metal wire layer with an outer surface and a second metal wire layer wound around the outer surface of the first layer, and a dry film of a lubricant comprising particles fused to each other and to the outer surface of the first layer and disposed in interstices between said layers.
A heat treated wire wound flexible shaft for transmitting torque, said shaft having a first wire layer with an outer surface and a second wire layer wound around the outer surface of the first layer, wherein a dry film of a lubricant is bonded to the outer surface of the first layer,
A wire wound flexible shaft for transmitting torque, said shaft having a first metal wire layer with an outer surface and a second metal wire layer wound around the outer surface of the first layer, and a dry film of a lubricant comprising particles fused to the outer surface of the first layer and disposed in interstices between said layers.
Dependencies are inferred from the claim text.