Turning – Severing or cut-off
Reexamination Certificate
2008-01-01
2008-01-01
Fridie, Jr., Willmon (Department: 3722)
Turning
Severing or cut-off
C082S113000, C407S033000, C407S053000, C407S066000
Reexamination Certificate
active
11105823
ABSTRACT:
Tube ends such as those of boiler tube banks, are prepared utilizing any of various combinations of processes which include a step of micro-diameter tube film removal from a portion of a tube end, including an area below a beveled segment, or segment to be beveled. The micro-diameter film removal step provides the tube with an exposed, clean metal surface which is conducive to a subsequent welding or bonding operation performed on the tube. In yet a further embodiment, tube film removal blades are provided having a curved or rounded edge which can be utilized in milling operations having close quarters. In a further embodiment, milling head cutting blades are provided which are adjustable. In a preferred embodiment, the milling head cutting blades and/or bevel blades are provided with elongated, slotted bores.
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Babcock/Deutsche Babcock Catalog Pages, publication data purportedly Jan. 1992, 5 pages purportedly from Catalog.
Document No. ES 0002 - Babcock Engineering Drawing of Babcock Head, No. 5259 68, 1 page, “alleged” date Aug. 30, 1996, unknown if publicly available.
Document No. ES 0016 — Babcock Construction/Engineering drawing of Head, No. 1513862, 1 pg., “alleged” date Oct. 28, 1982, unknown if publicly available.
Document Nos. ES 0020-0023 —Portable Pneumatic Pipe Bevelling Machines, by G.B.C. Pipework Technologies, Inc., Houston, Texas, 4 pages cover page, p. 8, p. 26 and an additional unnumbered page, stated to be Edition 1993.
Document No. ES 0066 — Babcock Engineering Drawing No., 1389620, 1 page, “alleged” date Aug. 19, 1987, unknown if publicly available.
Document Nos. ES 0117-0118 — Specification sheets for standard and custom blades, Esco Tool, Medfield, Ma, 2 pgs., “alleged” date Nov. 1, 1995.
Document No. ES 0225 — Babcock Engineering Drawing No. 1328978, 1 page, “alleged” date Feb. 20, 1981, unknown if publicly available.
Fridie Jr. Willmon
H&S Tool, Inc.
Hudak, Shunk & Farine Co. LPA
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