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OwnerJackie Lynn Baldwin, Stephen Neill Campion +2inventors
InventorsJackie Lynn Baldwin, Stephen Neill Campion, David William Posey, Thomas Milton Saunders
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A new and improved rollerhead for packerhead assemblies employed in concrete pipe making machines utilizing the packerhead method of pipe formation wherein the rollerhead includes a roller shaft having an upper end and a lower end, a hollow cylindrical roller body rotatably disposed around the roller shaft, a first bearing coaxially mounted about the upper end of the roller shaft and contacting an inside surface of the roller body, a second bearing coaxially mounted about the lower end of the roller shaft and contacting an inside surface of the roller body. The improvement comprises a roller body including a radially inwardly directed flange, an annular body mounted coaxially about the roller shaft, and an annular seal coaxially disposed about the annular body. The inwardly directed flange, annular body, and annular seal create a sealing system designed to prevent the infiltration of concrete contaminate matter into the rollerhead housing thus reducing wear on interior roller parts and lengthening the operative lifespan of the rollerhead assemblies.
In a rollerhead for a packerhead assembly used in forming concrete pipes and including a roller shaft having an upper end and a lower end, a hollow cylindrical roller body rotatably disposed around the roller shaft, a first bearing coaxially mounted about the upper end of the roller shaft and contacting an inside surface of the roller body, a second bearing coaxially mounted about the lower end of the roller shaft and contacting an inside surface of the roller body, the improvement comprising:
In a rollerhead for a packerhead assembly used in forming concrete pipes and including a roller shaft having an upper end and a lower end, a hollow cylindrical roller body rotatably disposed around the roller shaft, a first bearing coaxially mounted about the upper end of the roller shaft and contacting an inside surface of the roller body, a second bearing coaxially mounted about the lower end of the roller shaft and contacting an inside surface of the roller body, the improvement comprising:
In a concrete pipe forming machine including a packerhead assembly axially movable and rotatable about the longitudinal axis of a mold to which a concrete mixture is delivered, the packerhead assembly including a plurality of rollerheads for packing the concrete against the inner surface of the mold, each rollerhead including a roller shaft having an upper end and a lower end, a hollow cylindrical roller body rotatably disposed around the roller shaft, a first bearing coaxially mounted about the upper end of the roller shaft and contacting an inside surface of the roller body, a second bearing coaxially mounted about the lower end of the roller shaft and contacting an inside surface of the roller body, the improvement wherein each rollerhead comprises:
In a concrete pipe forming machine including a packerhead assembly axially movable and rotatable about the longitudinal axis of a mold to which a concrete mixture is delivered, the packerhead assembly including a plurality of rollerheads for packing the concrete against the inner surface of the mold, each rollerhead including a roller shaft having an upper end and a lower end, a hollow cylindrical roller body rotatably disposed around the roller shaft, a first bearing coaxially mounted about the upper end of the roller shaft and contacting an inside surface of the roller body, a second bearing coaxially mounted about the lower end of the roller shaft and contacting an inside surface of the roller body, the improvement wherein each rollerhead comprises:
Dependencies are inferred from the claim text.