Metal deforming – By use of roller or roller-like tool-element – Included in roller-cluster
Reexamination Certificate
2005-08-02
2005-08-02
Larson, Lowell A. (Department: 3725)
Metal deforming
By use of roller or roller-like tool-element
Included in roller-cluster
C072S370200
Reexamination Certificate
active
06923035
ABSTRACT:
A conduit modifier may be used to corrugate at least a portion of a conduit. The conduit modifier may include at least a first plurality of rollers arranged in a first pattern around a passageway. The first plurality of rollers may form ridges and grooves lengthwise along a conduit passing through the passageway. A second plurality of rollers arranged in a second pattern around the passageway may compress ridges formed by the first set of rollers. The ridges may be formed such that a distance from a central axis of the conduit to a highest portion of an outer surface of a ridge is substantially equal to a distance from the central axis of the conduit to an outer surface of the un-corrugated portion of the conduit. The corrugated portion of the modified conduit may be expandable.
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Reed Edward A.
Zifferer L. Robert
Larson Lowell A.
Meyertons Eric B.
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Packless Metal Hose Inc.
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