C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
204/15, 204/8
C25D 1/08 (2006.01) C25D 1/02 (2006.01) F28F 13/18 (2006.01)
Patent
CA 1337184
A sheet member having a plurality of channels for circulating fluids is made by providing a mandrel having a base portion and a plurality of elongated projecting ridge portions having elongated edges spaced above the base portion. The ridge portions are separated by elongated grooves and have conductive surfaces. A conductive material is electrodeposited on the conductive surfaces and is deposited on the edges of the ridge portions at a faster rate than on the surfaces defining inner surfaces of the grooves until the conductive material bridges across between the ridge portions to the envelope central portions of the grooves. The sheet member thus formed has a base layer and a plurality of elongated projections extending from the sheet member base layer into each of the grooves, with each of the projections containing an elongated enclosed channel. The mandrel is then separated from the sheet member and conductive material is electrodeposited on the conductive surfaces of the projections as described above until it bridges across between the projections to envelope central portions of the grooves and form additional elongated enclosed channels in the sheet member.
588893
Hoopman Timothy Lee
Johnson Dee Lynn
Krinke Harlan Lawrence
Minnesota Mining And Manufacturing Company
Smart & Biggar
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