Metal working – Method of mechanical manufacture – Heat exchanger or boiler making
Reexamination Certificate
2005-02-22
2005-02-22
Bryant, David P. (Department: 3726)
Metal working
Method of mechanical manufacture
Heat exchanger or boiler making
C029S419200, C029S523000, C029S727000, C072S370070, C072S056000
Reexamination Certificate
active
06857185
ABSTRACT:
A system and method for expanding, joining or securing a plurality of tubes by electromagnetic expansion to a plurality of sheets in a tubular heat transfer system. The system and method involve the automatic sensing and positioning of a electromagnetic coil in operative relationship with at least a portion of a tube and an inner wall of a sheet and then energizing the electromagnetic coil to expand the portion of the tube to engage the inner wall of the sheet, thereby securing the tube thereto. A tubular heat transfer system tube expander and method are also shown.
REFERENCES:
patent: 3599461 (1971-08-01), Astl
patent: 3618350 (1971-11-01), Larrimer, Jr. et al.
patent: 3636607 (1972-01-01), DeMarco
patent: 3998081 (1976-12-01), Hansen et al.
patent: 4059882 (1977-11-01), Wunder
patent: 4159564 (1979-07-01), Cooper, Jr.
patent: 4216826 (1980-08-01), Fujikake
patent: 4473862 (1984-09-01), Hill
patent: 4531393 (1985-07-01), Weir
patent: 4619127 (1986-10-01), Sano et al.
patent: 4889679 (1989-12-01), Snyder et al.
patent: 4924584 (1990-05-01), Harney
patent: 4929415 (1990-05-01), Okazaki
patent: 4947667 (1990-08-01), Gunkel et al.
patent: 4975412 (1990-12-01), Okazaki et al.
patent: 5050669 (1991-09-01), Nenstiel et al.
patent: 5154679 (1992-10-01), Fuller et al.
patent: 5405574 (1995-04-01), Chelluri et al.
patent: 5457977 (1995-10-01), Wilson
patent: 5611139 (1997-03-01), Chelluri et al.
patent: 5611230 (1997-03-01), Chelluri et al.
patent: 5687599 (1997-11-01), Donaldson et al.
patent: 5689797 (1997-11-01), Chelluri et al.
patent: 5761810 (1998-06-01), Insalaco et al.
patent: 5826320 (1998-10-01), Rathke et al.
patent: 5853507 (1998-12-01), Ali et al.
patent: 5887476 (1999-03-01), Damsohn et al.
patent: 5983478 (1999-11-01), Dolan et al.
patent: 6050121 (2000-04-01), Daehn et al.
patent: 6178636 (2001-01-01), Kroger et al.
patent: 6273963 (2001-08-01), Barber
Barber John P.
Columbus Robert M.
Kouse Bruce D.
Newman Duane C.
Bryant David P.
Elliott Tool Technologies Ltd.
IAP Research, Inc.
Jacox Meckstroth & Jenkins
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