F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent
F - Mech Eng,Light,Heat,Weapons
28
F
26/146, 257/22,
F28F 7/00 (2006.01) B21D 28/00 (2006.01) B21D 35/00 (2006.01) B21D 53/02 (2006.01) F28F 9/16 (2006.01)
Patent
CA 1096250
ABSTRACT OF THE DISCLOSURE A radiator tank headsheet including an integral ferrule around an elongated tube-receiving opening and method for forming the same wherein the method includes the steps of forming an elongated depression in the sheet material having generally parallel sidewalls, endwalls joining the sidewalls, and a bottom- wall, forming a pair of holes in the depression by removing a slug of sheet material from the bottomwall adjacent each of the endwalls, splitting the bottomwall generally along its centerline between the holes to form two bottomwall segments, and forcing the two segments outwardly and into coplanar relationship with the sidewalls of the depression to form an elongated opening including an integral ferrule having generally parallel, rela- tively high sidewalls and endwalls of lesser height joining the sidewalls.
314347
Mccord Corporation
Smart & Biggar
LandOfFree
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