Method of forming protrusions on the inner surface of a tube

Details Method of forming protrusions on the inner surface of a tube Method of forming protrusions on the inner surface of a tube

2007-02-13

2009-12-29

Chang, Rick K (Department: 3726)

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

C029S890043, C029S890050, C072S325000, C072S283000, C165S151000, C165S181000, C165S177000, C165S179000

Reexamination Certificate

active

07637012

ABSTRACT:
A method of forming a plurality of protrusions on the inner surface of a tube to reduce tube side resistance and improve overall heat transfer performance. The method includes cutting through ridges on the inner surface of the tube to create ridge layers and lifting the ridge layers to form the protrusions. In this way, the protrusions are formed without removal of metal from the inner surface of the tube, thereby eliminating debris which can damage the equipment in which the tubes are used.

REFERENCES:
patent: 2314084 (1943-03-01), Fried
patent: 3202212 (1965-08-01), Kritzer
patent: 3360040 (1967-12-01), Kritzer
patent: 3753364 (1973-08-01), Runyan et al.
patent: 3776018 (1973-12-01), French
patent: 3791003 (1974-02-01), Pasternak
patent: 3847212 (1974-11-01), Withers, Jr. et al.
patent: 3886639 (1975-06-01), Pasternak
patent: 4166498 (1979-09-01), Fujie et al.
patent: 4203311 (1980-05-01), O'Connor et al.
patent: 4337826 (1982-07-01), Kritzer
patent: 4561497 (1985-12-01), Nakajima et al.
patent: 4602681 (1986-07-01), Daikoku et al.
patent: 4606405 (1986-08-01), Nakayama et al.
patent: 4624122 (1986-11-01), Bridier
patent: 4646548 (1987-03-01), Zimmerli et al.
patent: 4653163 (1987-03-01), Kuwahara et al.
patent: 4672834 (1987-06-01), Alberto
patent: 4678029 (1987-07-01), Sasaki et al.
patent: 4706355 (1987-11-01), Kuhns et al.
patent: 4794984 (1989-01-01), Lin
patent: 4819525 (1989-04-01), Rabe
patent: 4938282 (1990-07-01), Zohler
patent: 5052476 (1991-10-01), Sukumoda et al.
patent: 5181810 (1993-01-01), Heule
patent: 5332034 (1994-07-01), Chiang et al.
patent: 5351397 (1994-10-01), Angeli
patent: 5458191 (1995-10-01), Chiang et al.
patent: 5555622 (1996-09-01), Yamamoto et al.
patent: 5597039 (1997-01-01), Rieger
patent: 5655599 (1997-08-01), Kasprzyk
patent: 5669441 (1997-09-01), Spencer
patent: 5682946 (1997-11-01), Schmidt et al.
patent: 5690167 (1997-11-01), Rieger
patent: 5692560 (1997-12-01), Messant et al.
patent: 5697430 (1997-12-01), Thors et al.
patent: 5704424 (1998-01-01), Kohno et al.
patent: 5709029 (1998-01-01), Innes
patent: 5755538 (1998-05-01), Heule
patent: 5775187 (1998-07-01), Nikolai et al.
patent: 5775411 (1998-07-01), Schuez et al.
patent: 5782121 (1998-07-01), Wetzels
patent: 5791405 (1998-08-01), Takiura et al.
patent: 5803164 (1998-09-01), Schuez et al.
patent: 5803165 (1998-09-01), Shikazono et al.
patent: 5862857 (1999-01-01), Ishikawa et al.
patent: 5915467 (1999-06-01), Ishikawa et al.
patent: 5933953 (1999-08-01), Spencer et al.
patent: 5934128 (1999-08-01), Takiura et al.
patent: 5950716 (1999-09-01), Appelquist et al.
patent: 5950718 (1999-09-01), Sugitani et al.
patent: 5975196 (1999-11-01), Gaffaney et al.
patent: 5996686 (1999-12-01), Thors et al.
patent: 6000466 (1999-12-01), Aoyagi et al.
patent: 6018963 (2000-02-01), Itoh et al.
patent: 6026892 (2000-02-01), Kim et al.
patent: 6056048 (2000-05-01), Takahashi et al.
patent: 6067712 (2000-05-01), Randlett et al.
patent: 6164370 (2000-12-01), Robinson et al.
patent: 6167950 (2001-01-01), Gupte et al.
patent: 6173762 (2001-01-01), Ishida et al.
patent: 6173763 (2001-01-01), Sano et al.
patent: 6176301 (2001-01-01), Bennett et al.
patent: 6176302 (2001-01-01), Takahashi et al.
patent: 6182743 (2001-02-01), Bennett et al.
patent: 6298909 (2001-10-01), Fukatami et al.
patent: 6336501 (2002-01-01), Ishikawa et al.
patent: 6766817 (2004-07-01), da Silva
patent: 6918404 (2005-07-01), da Silva
patent: 0 363 488 (1990-04-01), None
patent: 0865838 (1998-09-01), None
patent: 0522985 (2000-02-01), None
patent: 0845646 (2001-09-01), None
patent: 1391675 (2004-02-01), None
patent: 2268580 (1975-11-01), None
patent: 54-068554 (1979-06-01), None
patent: 54068554 (1979-06-01), None
patent: 56059194 (1981-05-01), None
patent: 61-175486 (1986-08-01), None
patent: 62237295 (1987-10-01), None
patent: 09108759 (1997-04-01), None
patent: 09141361 (1997-06-01), None
patent: 09295037 (1997-11-01), None
patent: 10052714 (1998-02-01), None
patent: 10103886 (1998-04-01), None
patent: 10197184 (1998-07-01), None
patent: 10206061 (1998-08-01), None
patent: 10281676 (1998-10-01), None
patent: 11226635 (1999-08-01), None
patent: 2000193345 (2000-07-01), None
Extended European Search Report issued Sep. 12, 2007 in European Patent Application No. 07113641.0.
Patent Abstracts of Japan, JP-02034237, Furukawa Electric Co Ltd, Published Feb. 5, 1990.
Patent Abstracts of Japan, JP-02108410, Furukawa Electric Co Ltd, Published Apr. 20, 1990.
Patent Abstracts of Japan, JP-02112822, Furukawa Electric Co Ltd, Published Apr. 25, 1990.
Patent Abstracts of Japan, JP-02133798, Hitachi Cable Ltd, Published May 22, 1990.
Patent Abstracts of Japan, JP-03124337, Zexel Corp, Published May 27, 1991.
Patent Abstracts of Japan, JP-03268816, Matsushita Refrig Co Ltd, Published Nov. 29, 1991.
Patent Abstracts of Japan, JP-04009210, Matsushita Electric Ind Co Ltd, Published Jan. 14, 1992.
Patent Abstracts of Japan, JP-04091819, Mitsubishi Heavy Ltd, Published Mar. 25, 1992.
Patent Abstracts of Japan, JP-04151473, Hitachi Zosen Crop, Published May 25, 1992.
Patent Abstracts of Japan, JP-04266418, Sumitomo Light Metal Ind Ltd, Published Sep. 22, 1992.
Patent Abstracts of Japan, JP-04319019, Kobe Steel Ltd, Published Nov. 10, 1992.
Patent Abstracts of Japan, JP-04333339, Segawa Kihachiro, Published Nov. 20, 1992.
Patent Abstracts of Japan, JP-05106990, Mitsubishi Shindoh Co., Ltd, Published Apr. 27, 1993.
Patent Abstracts of Japan, JP-05231790 Kobe Steel ltd, Published Sep. 7, 1993.
Patent Abstracts of Japan, JP-08035739, Sumitomo Light Metal Ind Ltd, Published Feb. 6, 1996.
Patent Abstracts of Japan, JP-08313182, Matsushita Electric Ind Co Ltd, Published Nov. 29, 1996.
Patent Abstracts of Japan, JP-08099206, Showa Aluminum Corp., Published Apr. 16, 1996.
Patent Abstracts of Japan, JP-09113169, Matsushita Refrig Co Ltd, Published May 2, 1997.

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