Metal working – Means to assemble or disassemble – Heat exchanger
Reexamination Certificate
2006-12-12
2006-12-12
Jimenez, Marc (Department: 3726)
Metal working
Means to assemble or disassemble
Heat exchanger
C029S727000, C029S426500
Reexamination Certificate
active
07146716
ABSTRACT:
The invention is related to a tube extracting device for removing a tube from a conventional drum of a boiler or heat exchanger. The device includes a wedge which is driven into a tube hole between the tube outer wall and the hole in the drum that the tube is in. The wedge has longitudinal ridges on its internal surface and inwardly tapered edges at its end which is driven into the zone between the tube hole and the outer wall of the tube such that the tube may be readily inwardly collapsed. Upon retracting the wedge from the tube hole, the tube is removed from the drum inside the wedge.
REFERENCES:
patent: 1598458 (1926-08-01), Sullivan
patent: 1753677 (1930-04-01), Andresen
patent: 3057631 (1962-10-01), LaFleur
patent: 3104461 (1963-09-01), Nieglos
patent: 3245247 (1966-04-01), Valente
patent: 3507028 (1970-04-01), Stellatella
patent: 3613489 (1971-10-01), Randich
patent: 3791011 (1974-02-01), Keys
patent: 3857158 (1974-12-01), Costello
patent: 3979816 (1976-09-01), Green
patent: 4000556 (1977-01-01), Ciminero
patent: 4053062 (1977-10-01), Travis
patent: 4180903 (1980-01-01), Hannigan, Jr.
patent: 4231246 (1980-11-01), Gorenc et al.
patent: 4233730 (1980-11-01), Godbe
patent: 4280274 (1981-07-01), Filer
patent: 4283826 (1981-08-01), Miller
patent: 4312124 (1982-01-01), Calhoun
patent: 4355450 (1982-10-01), Miller
patent: 4369569 (1983-01-01), Armstrong, Jr. et al.
patent: 4406856 (1983-09-01), Wilkins et al.
patent: 4471516 (1984-09-01), Godbe
patent: 4586695 (1986-05-01), Miller
patent: 4627155 (1986-12-01), Mancabelli
patent: 4643247 (1987-02-01), Tomasula
patent: 4670975 (1987-06-01), Dettinger
patent: 4776072 (1988-10-01), Jaquier
patent: 4959899 (1990-10-01), Martin
patent: 5168623 (1992-12-01), Rabe
patent: 5276965 (1994-01-01), Hahn et al.
patent: 5621966 (1997-04-01), Kvenvold et al.
patent: 5826334 (1998-10-01), Weeks et al.
patent: 5893209 (1999-04-01), Weeks et al.
patent: 5974642 (1999-11-01), Weeks et al.
patent: 6182354 (2001-02-01), Weeks
patent: 6205632 (2001-03-01), Weeks et al.
patent: 6209181 (2001-04-01), Weeks
patent: 6216326 (2001-04-01), Ritter et al.
patent: 6430790 (2002-08-01), Haycook
Agrawal Christopher
Babcock & Wilcox Canada Ltd.
Jimenez Marc
Marich Eric
Seymour Michael J.
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