US5632878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing an electroforming mold
Assignee: FET Engineering Inc
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Filing: 1995-10-17
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Granted: 1997-05-27
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Expires: 2015-10-17
Abstract
Abstract An electroformed tool that has a uniform air-releasing hole system with high strength and a simple and convenient method to manufacture it has been created. The method includes conducting electroforming by mixing a non-leveling agent with an electrolytic solution and forming an electroformed layer which has a continuous air-releasing hole structure.
Inventors
- 👤 Minoru Kitano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:48
CPC Classifications
C; C25; C25D; C25D1/00; C25D1/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
108 words
A method of manufacturing a porous electroformed tool in which a metal deposited layer is formed by depositing metal on a base by electroforming, characterized by using electroforming solution comprising nickel sulfamate, in the range of 300-400 g/L, nickel chloride in the range of 5-10 g/L, and boric acid in the range of 30-40 g/L, to which is added a non-leveling agent consisting of benzene sulfonic acid or a carboxylic acid or nicotinic acid or methyl-pentynol in the range of 0.05-0.8 g/L in the process of depositing metal on the base to form a porous electroformed tool having about 70 holes of 10-20 μm per dm 2 .
Claim 2
Independent Claim
108 words
A method of manufacturing a porous electroformed tool in which a metal deposited layer is formed by depositing metal on a base by electroforming, characterized by using electroforming solution comprising nickel sulfamate, in the range of 300-400 g/L, nickel chloride in the range of 5-10 g/L, and boric acid in the range of 30-40 g/L, to which is added a non-leveling agent consisting of benzene sulfonic acid or a carboxylic acid or nicotinic acid or methyl-pentynol in the range of 0.05-0.8 g/L in the process of depositing metal on the base to form a porous electroformed tool having about 70 holes of 10-20 μm per dm 2 .
Claim 3
Dependent Claim
23 words
The method of claim 1 comprising adding the non-leveling agents benzenesulfonic acid or a carboxylic acid in the range of about 0.1-0.5 g/L.
Claim 4
Dependent Claim
33 words
The method of claim 1 including the step of providing a second electrodeposited layer by using a second electroforming solution comprising nickel sulfamate, nickel chloride and boric acid to which is added polytetrafluorethylene.
Claim 5
Dependent Claim
16 words
The method of claim 3 comprising adding the polytetrafluorethylene in the range of about 0.02-0.05 g/L.
Claim 6
Independent Claim
116 words
A method of manufacturing a porous electroformed tool in which a metal deposited layer is formed by depositing metal on a base by electroforming, characterized by using electroforming solution comprising nickel sulfamate, in the range of 300-400 g/L, nickel chloride in the range of 5-10 g/L, and boric acid in the range of 30-40 g/L, to which is added a non-leveling agent consisting of benzene sulfonic acid or a carboxylic acid or nicotinic acid or methyl-pentynol in the process of depositing metal on the base to form a porous electroformed tool having about 70 holes of 10-20 μm per dm 2 , said nicotinic acid or methyl-pentynol being added in the range of about 0.001-0.1 g/L.
Claim 7
Independent Claim
116 words
A method of manufacturing a porous electroformed tool in which a metal deposited layer is formed by depositing metal on a base by electroforming, characterized by using electroforming solution comprising nickel sulfamate, in the range of 300-400 g/L, nickel chloride in the range of 5-10 g/L, and boric acid in the range of 30-40 g/L, to which is added a non-leveling agent consisting of benzene sulfonic acid or a carboxylic acid or nicotinic acid or methyl-pentynol in the process of depositing metal on the base to form a porous electroformed tool having about 70 holes of 10-20 μm per dm 2 , said nicotinic acid or methyl-pentynol being added in the range of about 0.001-0.1 g/L.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-05-26 | 2000-11-25 | 2001-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-05-26 | 2004-11-25 | 2005-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-05-26 | 2008-11-25 | 2009-05-27 | $7700.00 | Window Closed / Lapsed |