EP0329340A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Sheet member containing a plurality of elongated enclosed electrodeposited channels and method
Assignee: 3M Co
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Filing: 1989-02-10
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Granted: —
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Expires: 2009-02-10
Abstract
Abstract A sheet member (38) and a method for constructing the sheet member. The sheet member (38) includes a plurality of elongated, enclosed channels (36) formed by electrodeposition.
Inventors
- 👤 Dee Lynn Minnesota Mining And Johnson
- 👤 Timothy L. Minnesota Mining And Hoopman
- 👤 Harlan L. Minnesota Mining And Krinke
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 17:14
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/28; C23C10/34; C23C10/52; F; F28; F28F; F28F13/00; F28F13/18; F28F13/185; C25; C25D; C25D1/00; C25D1/02; C25D1/08; F28F2275/00; F28F2275/14; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/936; Y10T; Y10T428/00; Y10T428/12; Y10T428/12292; Y10T428/12479
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
177 words
A method for constructing a sheet member (38) having a plurality of channels (36) said method comprising the steps of: (a) providing a mandrel (10) having a base portion (12) and a plurality of elongated ridge portions (19) projecting from the base portion (12) and having elongated edges (15) spaced above the base portion (12), the ridge portions (14) defining elongated grooves (16) between the ridge portions (14), and the ridge portions having conductive surfaces; and (b) electrodepositing a conductive material on the conductive surfaces with the conductive material being deposited on the edges (15) of the ridge portions (14) at a faster rate than on the surfaces defining inner surfaces of the grooves (16) until the conductive material bridges across between the ridge portions (14) to envelope central portions of the grooves (16) and form the sheet member (38) having a base layer (40) and a plurality of elongated projections (42) extending from the sheet member base layer (40) into each of the grooves (16), with each of the projections containing an elongated enclosed channel (36).
Claim 2
Independent Claim
177 words
A method for constructing a sheet member (38) having a plurality of channels (36) said method comprising the steps of: (a) providing a mandrel (10) having a base portion (12) and a plurality of elongated ridge portions (19) projecting from the base portion (12) and having elongated edges (15) spaced above the base portion (12), the ridge portions (14) defining elongated grooves (16) between the ridge portions (14), and the ridge portions having conductive surfaces; and (b) electrodepositing a conductive material on the conductive surfaces with the conductive material being deposited on the edges (15) of the ridge portions (14) at a faster rate than on the surfaces defining inner surfaces of the grooves (16) until the conductive material bridges across between the ridge portions (14) to envelope central portions of the grooves (16) and form the sheet member (38) having a base layer (40) and a plurality of elongated projections (42) extending from the sheet member base layer (40) into each of the grooves (16), with each of the projections containing an elongated enclosed channel (36).
Claim 3
Dependent Claim
20 words
The method of claim 1, further comprising the step of: (c) separating the mandrel (10) from the sheet member (38).
Claim 4
Dependent Claim
107 words
The method of claim 2, wherein the sheet member projections (42) have elongated edges (43) spaced above the base layer (40), the projections (42) defining elongated grooves (48) between the projections, and the method further comprises the step of: (d) electrodepositing a conductive material on the conductive surfaces of the projections with the conductive material being deposited on the edges (43) of the projections (42) at a faster rate than on the surfaces defining inner surfaces of the grooves (48) until the conductive material bridges across between the projections (42) to envelope central portions of the grooves and form additional elongated enclosed channels in the sheet member.
Claim 5
Dependent Claim
27 words
The method of claim 1, further including the step of: passivating the surface of said elongated ridge portions (14) of said mandrel (10) prior to step (b).
Claim 6
Dependent Claim
28 words
The method of claim 3, further comprising the step of: activating said first major surface of said first sheet portion (38(a)) prior to step (d) in claim 3.
Claim 7
Dependent Claim
11 words
An article produced in accordance with the method of claim 1.
Claim 8
Dependent Claim
11 words
An article produced in accordance with the method of claim 3.
Claim 9
Dependent Claim
55 words
An article for circulating fluids, comprising: (a) a sheet member (38) having opposing major surfaces; and (b) a plurality of elongated, enclosed electroformed channels (36) extending through said sheet member (38) between said opposing major surfaces for the circulation of fluids through each of said channels, said channels (36) having a predetermined cross sectional shape.
Claim 10
Dependent Claim
55 words
An article for circulating fluids, comprising: (a) a sheet member (38) having opposing major surfaces; and (b) a plurality of elongated, enclosed electroformed channels (36) extending through said sheet member (38) between said opposing major surfaces for the circulation of fluids through each of said channels, said channels (36) having a predetermined cross sectional shape.
Claim 11
Dependent Claim
26 words
The article of claim 8, wherein each adjacent pair of said channels (36) are joined at an undulating boundary (52) extending through said sheet member (38).
Claim 12
Dependent Claim
29 words
The article of claim 8, wherein one of said major surfaces of said sheet member (38) includes a plurality of projections (42), each projection containing one of said channels.
References Cited (Backward Citations)
No citation records indexed.
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