Metal deforming – By use of 'flying tool' engaging moving work – With cutting
Reexamination Certificate
2005-04-05
2005-04-05
Larson, Lowell A. (Department: 3725)
Metal deforming
By use of 'flying tool' engaging moving work
With cutting
Reexamination Certificate
active
06874345
ABSTRACT:
A heat exchanger comprising at least one row of flattened tubes through which a heat exchange medium may pass. A serpentine fin10disposed between adjacent flattened tubes has relatively straight segments that are connected by bend radii20. The fin50defines a plurality of louvers32therein. Each louver32forms an elongated slit that extends at least partially into the bend radii20, through which a fluid to be heated or cooled by the medium may pass. The fin50is formed by a tool with fin blades that have tips that are configured to form the extended length louver that protracts into the bend radius that separates adjacent convolutions.
REFERENCES:
patent: 2789797 (1957-04-01), Simpelaar
patent: 3003749 (1961-10-01), Morse
patent: 3367161 (1968-02-01), Avakian
patent: 3998600 (1976-12-01), Wallis
patent: 4067219 (1978-01-01), Bianchi
patent: 4170122 (1979-10-01), Cowell
patent: 4328861 (1982-05-01), Cheong et al.
patent: 4676304 (1987-06-01), Koisuka et al.
patent: 4888972 (1989-12-01), Rouse
patent: 5271458 (1993-12-01), Yamamoto et al.
patent: 5372187 (1994-12-01), Haushalter
patent: 5511610 (1996-04-01), Lu
patent: 5679106 (1997-10-01), Ohno et al.
patent: 5682784 (1997-11-01), Stoynoff, Jr.
patent: 5738169 (1998-04-01), Stoynoff
patent: 5787972 (1998-08-01), Beamer et al.
patent: 5855240 (1999-01-01), Farrell et al.
patent: 6170566 (2001-01-01), Blumel et al.
patent: 63-273521 (1988-11-01), None
patent: 6-79358 (1994-03-01), None
Larson Lowell A.
Outokumpu Livernois Engineering LLC
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