Patent USH158H successfully refreshed from Google Patents.
USH158H
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding an electrically conductive material to an electrically conductive layer which overlies a curved non-metallic substrate
Assignee: United States Department of the Army
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Filing: 1985-11-12
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Granted: 1986-11-04
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Expires: 2005-11-12
Abstract
Abstract An improved method is disclosed of bonding an electrically conductive matal to an electrically conductive layer which is adhered to and which overlies a curved non-metallic substrate. This method comprises providing a non-metallic substrate with a curved surface. This substrate has adhered to its surface an electrically conductive layer. An electrically conductive material which is to be bonded to the electrically conductive layer is placed on the electrically conductive layer. A rigid, substantially inert and transparent to laser beam energy, cover means is placed on the electrically conductive material sufficiently to hold the electrically conductive material against the electrically conductive layer. A high energy density pulsed laser beam is directed on the materials at a sufficiently high energy density thereby welding the materials together.
Inventors
- 👤 Philip R. Frausto
- 👤 Charles E. Wickersham
- 👤 Thomas R. Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:40
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/20; B23K26/32
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
146 words
A method of bonding an electrically conductive material to an electrically conductive layer adhered to and overlying a curved, nonmetallic substrate comprising: providing a non-metallic substrate with a curved surface having adhered thereto in conformity to said curved surface an electrically conductive layer, placing an electrically conductive material to be bonded to said electrically conductive layer on said layer, then placing in contact with said electrically conductive material sufficient to hold said material against said layer, a rigid, substantially inert to high density laser beam energy, substantially transparent to laser beam energy, cover means to hold said electrically conductive material against said electrically conductive layer and then directing a high energy density laser beam through said cover means and on said electrically conductive material at sufficiently high energy density and in a constant power density spot, welding said electrically conductive material to said electrically conductive layer.
Claim 2
Independent Claim
146 words
A method of bonding an electrically conductive material to an electrically conductive layer adhered to and overlying a curved, nonmetallic substrate comprising: providing a non-metallic substrate with a curved surface having adhered thereto in conformity to said curved surface an electrically conductive layer, placing an electrically conductive material to be bonded to said electrically conductive layer on said layer, then placing in contact with said electrically conductive material sufficient to hold said material against said layer, a rigid, substantially inert to high density laser beam energy, substantially transparent to laser beam energy, cover means to hold said electrically conductive material against said electrically conductive layer and then directing a high energy density laser beam through said cover means and on said electrically conductive material at sufficiently high energy density and in a constant power density spot, welding said electrically conductive material to said electrically conductive layer.
Claim 3
Dependent Claim
13 words
The method according to claim 1 wherein said cover means is is glass.
Claim 4
Dependent Claim
24 words
The method according to claim 2 wherein said cover means is selected from the group consisting of optical glass, quartz glass and ceramic glass.
Claim 5
Dependent Claim
13 words
The method according to claim 3 wherein said cover means is optical glass.
Claim 6
Dependent Claim
33 words
The method according to claim 1 wherein the electrically conductive material is selected from the group consisting of aluminum, chromium, copper, gold, iron, manganese, nickel, platinum, silver, tantalum, titanium, tin, tungsten, and zinc.
Claim 7
Dependent Claim
13 words
The method according to claim 5 wherein the electrically conductive material is aluminum.
Claim 8
Dependent Claim
22 words
The method according to claim 6 wherein the electrically conductive material is in the form of an electrically conductive aluminum foil lead.
Claim 9
Dependent Claim
33 words
The method according to claim 1 wherein the electrically conductive layer is selected from the group consisting of aluminum, chromium, copper, gold, iron, manganese, nickel, platinum, silver, tantalum, titanium, tin, tungsten, and zinc.
Claim 10
Dependent Claim
13 words
The method according to claim 8 wherein the electrically conductive layer is aluminum.
Claim 11
Independent Claim
138 words
A method of bonding an electrically conductive material to an electrically conductive layer adhered to and overlying a curved nonmetallic substrate comprising: providing a non-metallic, substantially inert to high density laser beam energy and substantially transparent to high density laser beam energy, substrate with a curved surface having adhered thereto in conformity to said curved surface an electrically conductive layer, placing an electrically conductive material to be bonded to said electrically conductive layer on said layer, then placing in contact with said electrically conductive material sufficient to hold said material against said layer, a rigid, substantially inert to high density laser beam energy, cover means to hold said material against said layer, then directing a high energy density laser beam through said substrate and on said layer at sufficiently high energy density welding said layer to said material.
Claim 12
Independent Claim
138 words
A method of bonding an electrically conductive material to an electrically conductive layer adhered to and overlying a curved nonmetallic substrate comprising: providing a non-metallic, substantially inert to high density laser beam energy and substantially transparent to high density laser beam energy, substrate with a curved surface having adhered thereto in conformity to said curved surface an electrically conductive layer, placing an electrically conductive material to be bonded to said electrically conductive layer on said layer, then placing in contact with said electrically conductive material sufficient to hold said material against said layer, a rigid, substantially inert to high density laser beam energy, cover means to hold said material against said layer, then directing a high energy density laser beam through said substrate and on said layer at sufficiently high energy density welding said layer to said material.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-03 | 1990-05-05 | 1990-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-03 | 1994-05-05 | 1994-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-03 | 1998-05-05 | 1998-11-04 | $7700.00 | Window Closed / Lapsed |