Patent US5795648A successfully refreshed from Google Patents.
US5795648A
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US
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Method for preserving precision edges using diamond-like nanocomposite film coatings
Assignee: Bekaert NV SA
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Filing: 1995-10-03
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Granted: 1998-08-18
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Expires: 2015-10-03
Abstract
Abstract A method for preserving the precision-edges of a precision-edged substrate by applying to a the substrate a corrosion resistant coating comprising a diamond-like solid state material having interpenetrating atomic scale networks comprising a first diamond-like carbon network stabilized by hydrogen, a silicon network stabilized by oxygen, and optionally at least one network made from dopant elements or dopant compounds containing elements from Groups 1-7b and 8 of the periodic table.
Inventors
- 👤 Arvind Goel
- 👤 Donald J. Bray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:37
CPC Classifications
B; B32; B32B; B32B9/00; C; C23; C23C; C23C16/00; C23C16/22; C23C16/30; B26; B26B; B26B21/00; B26B21/54; B26B21/58; B26B21/60; B82; B82Y; B82Y30/00; C23C16/44; C23C16/448; C23C16/4481; C23C16/4483; C23C16/50; C23C16/503; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/30; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
80 words
A method for preserving a precision edge of a precision-edged substrate comprising: providing a precision-edged substrate, wherein the precision-edged substrate is a cutting apparatus; and applying to said substrate a coating made from a diamond-like solid state material formed from interpenetrating networks comprising a diamond-like carbon network stabilized by hydrogen, a silicon network stabilized by oxygen, and optionally at least one network made from dopant elements or dopant compounds containing elements from Groups 1-7b and 8 of the periodic table.
Claim 2
Independent Claim
80 words
A method for preserving a precision edge of a precision-edged substrate comprising: providing a precision-edged substrate, wherein the precision-edged substrate is a cutting apparatus; and applying to said substrate a coating made from a diamond-like solid state material formed from interpenetrating networks comprising a diamond-like carbon network stabilized by hydrogen, a silicon network stabilized by oxygen, and optionally at least one network made from dopant elements or dopant compounds containing elements from Groups 1-7b and 8 of the periodic table.
Claim 3
Dependent Claim
30 words
The method according to claim 1, wherein the carbon, hydrogen, silicon and oxygen are obtained from the decomposition of an organosiloxane having from about 1 to about 10 silicon atoms.
Claim 4
Dependent Claim
11 words
The method according to claim 2, wherein the organosiloxane is polyphenylmethylsiloxane.
Claim 5
Dependent Claim
24 words
The method according to claim 1, wherein the carbon content of the coating is from about 40 wt. % to about 98 wt. %.
Claim 6
Dependent Claim
22 words
The method according to claim 1, wherein the carbon content of the coating is from about 50 wt.% to about 98 wt.%.
Claim 7
Dependent Claim
23 words
The method according to claim 1, wherein the carbon to silicon weight ratio of the coating is from about 2:1 to about 8:1.
Claim 8
Dependent Claim
23 words
The method according to claim 1, wherein the silicon to oxygen weight ratio of the coating is from about 0.5:1 to about 3:1.
Claim 9
Dependent Claim
15 words
The method according to claim 1, wherein the coating is deposited on a metal substrate.
Claim 10
Dependent Claim
15 words
The method according to claim 1, wherein the coating is deposited on a non-metal substrate.
Claim 11
Dependent Claim
46 words
The method according to claim 1, wherein the dopant elements are selected from the group consisting of B, Si, Ge, Te, O, Mo, W, Ta, Nb, Pd, Ir, Pt, V, Fe, Co, Mg, Mn, Ni, Ti, Zr, Cr, Re, Hf, Cu, Al, N, Ag, and Au.
Claim 12
Dependent Claim
26 words
The method according to claim 1, wherein the coating is deposited on the substrate to a thickness of from about 5 nm to about 12 micrometers.
Claim 13
Dependent Claim
26 words
The method according to claim 1, wherein the coating is deposited on the substrate to a thickness of from about 5 nm to about 150 nm.
Claim 14
Dependent Claim
59 words
The method according to claim 1, wherein the carbon content of the diamond-like solid state material is greater than about 40 atomic % of the DLN, the hydrogen content is up to about 40 atomic % of the carbon, and the sum of the silicon, oxygen and dopants together is greater than about 2 atomic % of the DLN.
Claim 15
Dependent Claim
64 words
A cutting apparatus comprising a precision-edged substrate coated with a precision-edge preserving coating, said coating comprising a diamond-like solid state material formed from interpenetrating networks comprising a first diamond-like carbon network stabilized by hydrogen, a second silicon network stabilized by oxygen and, optionally, at least one network of dopant elements, or dopant compounds containing elements from Groups 1-7b and 8 of the periodic table.
Claim 16
Dependent Claim
64 words
A cutting apparatus comprising a precision-edged substrate coated with a precision-edge preserving coating, said coating comprising a diamond-like solid state material formed from interpenetrating networks comprising a first diamond-like carbon network stabilized by hydrogen, a second silicon network stabilized by oxygen and, optionally, at least one network of dopant elements, or dopant compounds containing elements from Groups 1-7b and 8 of the periodic table.
Claim 17
Dependent Claim
30 words
The apparatus according to claim 14, wherein the carbon, hydrogen, silicon and oxygen are obtained from the decomposition of an organosiloxane having from about 1 to about 10 silicon atoms.
Claim 18
Dependent Claim
11 words
The apparatus according to claim 15, wherein the organosiloxane is polyphenylmethylsiloxane.
Claim 19
Dependent Claim
24 words
The apparatus according to claim 14, wherein the carbon content of the coating is from about 40 wt. % to about 98 wt. %.
Claim 20
Dependent Claim
24 words
The apparatus according to claim 14, wherein the carbon content of the coating is from about 50 wt. % to about 98 wt. %.
Claim 21
Dependent Claim
23 words
The apparatus according to claim 14, wherein the carbon to silicon weight ratio of the coating is from about 2:1 to about 8:1.
Claim 22
Dependent Claim
23 words
The apparatus according to claim 14, wherein the silicon to oxygen weight ratio of the coating is from about 0.5:1 to about 3:1.
Claim 23
Dependent Claim
12 words
The apparatus according to claim 14, wherein the substrate comprises a metal.
Claim 24
Dependent Claim
12 words
The apparatus according to claim 14, wherein the substrate comprises a non-metal.
Claim 25
Dependent Claim
46 words
The apparatus according to claim 14, wherein the dopant elements are selected from the group consisting of B, Si, Ge, Te, O, Mo, W, Ta, Nb, Pd, Ir, Pt, V, Fe, Co, Mg, Mn, Ni, Ti, Zr, Cr, Re, Hf, Cu, Al, N, Ag, and Au.
Claim 26
Dependent Claim
57 words
The apparatus according to claim 14, wherein the carbon content of the solid state material is at least 40 atomic % of the coating, the hydrogen content is up to about 40 atomic % of the carbon, and the sum of the silicon, oxygen and dopants together is greater than about 2 atomic % of the coating.
Claim 27
Dependent Claim
26 words
The apparatus according to claim 14, wherein the coating is deposited on the substrate to a thickness of from about 5 nm to about 12 micrometers.
Claim 28
Dependent Claim
26 words
The apparatus according to claim 14, wherein the coating is deposited on the substrate to a thickness of from about 5 nm to about 150 nm.
Claim 29
Dependent Claim
23 words
The apparatus according to claim 14, wherein the apparatus is selected from the group consisting of industrial tools, surgical instruments, knives and razors.
Claim 30
Dependent Claim
13 words
The apparatus according to claim 14, wherein the apparatus is a razor blade.
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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) | 2001-08-17 | 2002-02-16 | 2002-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-17 | 2006-02-16 | 2006-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-17 | 2010-02-16 | 2010-08-18 | $7700.00 | Window Closed / Lapsed |