US3978375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wiring unit
Assignee: Panasonic Holdings Corp
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Filing: 1974-04-15
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Granted: 1976-08-31
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Expires: 1994-04-15
Abstract
Abstract A wiring unit of high reliability is obtained without the need for any chemical treatment. It is obtained by assembling a wiring means having a predetermined wiring pattern and made from a conductive plate into an insulating frame having a predetermined pattern and electrically connecting circuit elements to the wiring means.
Inventors
- 👤 Noriaki Fukui
- 👤 Toyokiti Yamasita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:43
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3447; H05K3/10; H05K3/20; H05K3/202; H05K7/00; H05K7/02; H05K7/06; H05K1/00; H05K1/02; H05K1/0266; H05K1/0269; H05K1/0284; H05K1/0286; H05K1/0292; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0364; H05K2201/0373; H05K2201/0382; H05K2201/0388; H05K2201/0394; H05K2201/09; H05K2201/09009; H05K2201/091; H05K2201/09118; H05K2201/09209; H05K2201/09654; H05K2201/09681; H05K2201/10; H05K2201/10431; H05K2201/10583; H05K2201/20; H05K2201/2072; H05K2203/00; H05K2203/07; H05K2203/0703; H05K2203/0723; H05K2203/16; H05K2203/161; H05K2203/17; H05K2203/175; H05K3/301; H05K3/3465; H05K3/3468; H05K3/40; H05K3/4092; H05K3/46; H05K3/4685
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
176 words
A printed circuit wiring unit, comprising: a conductive wiring pattern having a plurality of electrical lead portions connected in a fixed pattern by a plurality of removable connecting portions, said lead portions and said connecting portions being fabricated as a unitary structure from a conductive metal plate, said electrical lead portions having holes formed therein at the end portions thereof for insertion therethrough of circuit element leads, said electrical lead portions being formed from a perforated metal plate and said circuit element lead insertion holes being larger than the perforations in said electrical lead portions; and an insulating frame to which said conductive plate is secured, said insulating frame having a plurality of relatively large openings formed therein from which the hole-containing ends of said electrical lead portions project, said openings in said insulating frame permitting movement of substantial amounts of ventilating air through said wiring unit and providing air insulation between non-electrically connected portions of said wiring pattern to substantially eliminate floating capacitance in said wiring unit when said removable connecting portions have been removed.
Claim 2
Dependent Claim
176 words
A printed circuit wiring unit, comprising: a conductive wiring pattern having a plurality of electrical lead portions connected in a fixed pattern by a plurality of removable connecting portions, said lead portions and said connecting portions being fabricated as a unitary structure from a conductive metal plate, said electrical lead portions having holes formed therein at the end portions thereof for insertion therethrough of circuit element leads, said electrical lead portions being formed from a perforated metal plate and said circuit element lead insertion holes being larger than the perforations in said electrical lead portions; and an insulating frame to which said conductive plate is secured, said insulating frame having a plurality of relatively large openings formed therein from which the hole-containing ends of said electrical lead portions project, said openings in said insulating frame permitting movement of substantial amounts of ventilating air through said wiring unit and providing air insulation between non-electrically connected portions of said wiring pattern to substantially eliminate floating capacitance in said wiring unit when said removable connecting portions have been removed.
Claim 3
Dependent Claim
58 words
A printed circuit wiring unit according to claim 1, wherein said insulating frame includes a plurality of support seats on at least one surface thereof for supporting circuit elements on said frame, the electrical leads of said circuit elements being inserted through corresponding holes in the projecting ends of said electrical lead portions of said conductive wiring pattern.
Claim 4
Dependent Claim
129 words
A printed circuit wiring unit according to claim 1, further comprising: a second conductive wiring pattern comprising a second plurality of electrical lead portions connected in a fixed pattern by a second plurality of removable connecting portions, said second lead portions and connecting portions being fabricated as a unitary structure from a second conductive metal plate and having a second plurality of holes formed at respective ends of said second electrical lead portions for insertion therethrough of circuit element leads; said second wiring pattern being secured to said insulating frame in spaced relation to said first conductive wiring pattern with the hole-containing ends of said second plurality of electrical lead portions projecting from said openings in said insulating frame to form a multi-layer wiring pattern on said insulating frame.
Claim 5
Dependent Claim
36 words
A printed circuit wiring unit according to claim 1, wherein said projecting ends of said electrical lead portions are bent to extend downwardly from said lower surface of and into said openings in said insulating frame.
Claim 6
Dependent Claim
176 words
A printed circuit wiring unit, comprising: a conductive wiring pattern having a plurality of electrical lead portions connected in a fixed pattern by a plurality of removable connecting portions, said lead portions and said connecting portions being fabricated as a unitary structure from a conductive metal plate, said electrical lead portions having therethrough formed therein at the end portions thereof for insertion therethough of circuit element leads; and an insulating frame to which said conductive plate is secured, said insulating frame having a plurality of relatively large openings formed therein from which the hole-containing ends of said electrical lead portions project, said insulating frame being chamfered on the lower side to guide an atomized solder jet toward and into contact with said projecting ends of said electrical lead portions, said openings in said insulating frame permitting movement of substantial amounts of ventilating air through said wiring unit and providing air insulation between non-electrically connected portions of said wiring pattern to substantially eliminate floating capacitance in said wiring unit when said removable connecting portions have been removed.
Claim 7
Dependent Claim
176 words
A printed circuit wiring unit, comprising: a conductive wiring pattern having a plurality of electrical lead portions connected in a fixed pattern by a plurality of removable connecting portions, said lead portions and said connecting portions being fabricated as a unitary structure from a conductive metal plate, said electrical lead portions having therethrough formed therein at the end portions thereof for insertion therethough of circuit element leads; and an insulating frame to which said conductive plate is secured, said insulating frame having a plurality of relatively large openings formed therein from which the hole-containing ends of said electrical lead portions project, said insulating frame being chamfered on the lower side to guide an atomized solder jet toward and into contact with said projecting ends of said electrical lead portions, said openings in said insulating frame permitting movement of substantial amounts of ventilating air through said wiring unit and providing air insulation between non-electrically connected portions of said wiring pattern to substantially eliminate floating capacitance in said wiring unit when said removable connecting portions have been removed.
Claim 8
Dependent Claim
58 words
A printed circuit wiring unit according to claim 5, wherein said insulating frame includes a plurality of support seats on at least one surface thereof for supporting circuit elements on said frame, the electrical leads of said circuit elements being inserted through corresponding holes in the projecting ends of said electrical lead portions of said conductive wiring pattern.
Claim 9
Dependent Claim
129 words
A printed circuit wiring unit according to claim 5, further comprising: a second conductive wiring pattern comprising a second plurality of electrical lead portions connected in a fixed pattern by a second plurality of removable connecting portions, said second lead portions and connecting portions being fabricated as a unitary structure from a second conductive metal plate and having a second plurality of holes formed at respective ends of said second electrical lead portions for insertion therethrough of circuit element leads; said second wiring pattern being secured to said insulating frame in spaced relation to said first conductive wiring pattern with the hole-containing ends of said second plurality of electrical lead portions projecting from said openings in said insulating frame to form a multi-layer wiring pattern on said insulating frame.
Claim 10
Dependent Claim
36 words
A printed circuit wiring unit according to claim 5, wherein said projecting ends of said electrical lead portions are bent to extend downwardly from said lower surface of and into said openings in said insulating frame.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |