Patent US2270124A successfully refreshed from Google Patents.
Patent US4394710A successfully refreshed from Google Patents.
US4394710A
Expired / Lapsed
US
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Die-stamped circuit board assembly for photoflash devices
Assignee: Osram Sylvania Inc
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Filing: 1982-01-04
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Granted: 1983-07-19
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Expires: 2002-01-04
Abstract
Abstract A circuit board assembly wherein the assembly includes a dielectric substrate, at least one radiation sensitive switch, and at least one conductive member in electrical contact with the switch. Portions of the switch and the conductive member are die-stamped into the dielectric substrate to achieve the contact without severing the switch material.
Inventors
- 👤 Boyd G. Brower
- 👤 David R. Broadt
- 👤 John W. Shaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:23
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/02; H05K3/04; H05K3/041; G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B15/0442; G03B15/0452; G03B15/0457; H05K2203/00; H05K2203/01; H05K2203/0104; H05K2203/0108; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/107
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
109 words
A circuit board assembly for use within a photoflash device, said circuit board assembly comprising: a dielectric substrate; at least one thin, electrically conductive switching element having a portion thereof die-stamped an established distance within a surface of said substrate; and at least one thin, electrically conductive metallic member die-stamped within said surface of said substrate simultaneously with said switching element and having a part thereof located on said die-stamped portion of said switching element, said die-stamping electrically connecting said conductive member to said portion of said switching element and securedly positioning both said conductive member and said switching element on said dielectric substrate without severing said switching element.
Claim 2
Dependent Claim
109 words
A circuit board assembly for use within a photoflash device, said circuit board assembly comprising: a dielectric substrate; at least one thin, electrically conductive switching element having a portion thereof die-stamped an established distance within a surface of said substrate; and at least one thin, electrically conductive metallic member die-stamped within said surface of said substrate simultaneously with said switching element and having a part thereof located on said die-stamped portion of said switching element, said die-stamping electrically connecting said conductive member to said portion of said switching element and securedly positioning both said conductive member and said switching element on said dielectric substrate without severing said switching element.
Claim 3
Dependent Claim
24 words
The circuit board assembly according to claim 1 wherein said dielectric substrate includes at least one aperture therein, said switching element bridging said aperture.
Claim 4
Dependent Claim
38 words
The circuit board assembly according to claim 1 including a first quantity of adhesive material located between said part of said conductive member located on said portion of said switching element and said portion of said switching element.
Claim 5
Dependent Claim
31 words
The circuit board assembly according to claim 3 including a second quantity of adhesive material located between said portion of said switching element die-stamped within said dielectric substrate and said substrate.
Claim 6
Dependent Claim
24 words
The circuit board assembly according to claim 1 wherein said switching element possesses a greater hardness than said dielectric substrate and said conductive member.
Claim 7
Dependent Claim
20 words
The circuit board assembly according to claim 5 wherein said conductive member possesses a hardness greater than said dielectric substrate.
Claim 8
Dependent Claim
24 words
The circuit board assembly according to claim 5 wherein said dielectric substrate possesses a thickness greater than said switching element and said conductive member.
Claim 9
Dependent Claim
24 words
The circuit board assembly according to claim 7 wherein said conductive member possesses a thickness substantially equal to or greater than said switching element.
Claim 10
Dependent Claim
18 words
The circuit board assembly according to claim 5 wherein said switching element is comprised of a polymeric material.
Claim 11
Dependent Claim
29 words
The circuit board assembly according to claim 9 wherein said polymeric material is selected from the group consisting of mono- or biaxially oriented polyethylene, polypropylene, polystyrene, polyester, or nylon.
Claim 12
Dependent Claim
18 words
The circuit board assembly according to claim 10 wherein said conductive material is comprised of dead soft aluminum.
Claim 13
Dependent Claim
19 words
The circuit board assembly according to claim 11 wherein the material of said dielectric substrate is high impact polystyrene.
Claim 14
Dependent Claim
57 words
The circuit board assembly according to claim 1 wherein said switching element and said conductive member are electrically connected at two locations by said die-stamping, a first of said locations being along an edge of said conductive member and a second of said locations being along a common boundary between said switching element and said conductive member.
Claim 15
Dependent Claim
36 words
The circuit board assembly according to claim 1 wherein said part of said conductive member positioned on said die-stamped portion of said switching element serves to assist in retaining said switching element on said dielectric substrate.
Claim 16
Dependent Claim
44 words
The circuit board assembly according to claim 1 wherein said die-stamped portion of said switching element and said part of said conductive member die-stamped within said dielectric substrate are each of a substantially arcuate configuration, the ends of said conductive member being substantially tapered.
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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) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |