US4158220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed circuit card construction
Assignee: Fujitsu Ltd
•
Filing: 1977-12-20
•
Granted: 1979-06-12
•
Expires: 1997-12-20
Abstract
Abstract Disclosed is a printed circuit card construction comprising laminated conductor plates, a plurality of poles mounted on the laminated conductor plates, a plurality of mother boards fixed by two adjacent poles, a plurality of Input/Output connectors supported by the mother boards for holding each printed circuit card, and a plurality of power sources, wherein the poles and the power sources are directly connected to the corresponding conductor plates of the laminated conductor plates, which poles act as both mechanical means for supporting the mother boards and electrical means for supplying power to the printed circuit cards.
Inventors
- 👤 Haruhiko Yamamoto
- 👤 Yoshiaki Udagawa
- 👤 Yoshinao Hirose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:30
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1422; H05K7/1424; H05K1/00; H05K1/02; H05K1/14; H05K1/144; H05K3/00; H05K3/36; H05K3/368
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
115 words
A printed circuit card construction comprising a base having a plurality of conductor plates laminated together and at least one printed circuit card stack mounted on said base, said at least one card stack comprising: a plurality of poles selectively electrically connected to said conductor plates; at least one mother board, each said mother board being supported by two adjacent ones of said poles; a plurality of Input/Output connectors fixed on each said mother board; and a plurality of cards held at their peripheries by corresponding ones of said Input/Ouput connectors; said poles comprising both mechanical means for supporting each said mother board and electrical means for supplying electrical power to each said mother board.
Claim 2
Dependent Claim
115 words
A printed circuit card construction comprising a base having a plurality of conductor plates laminated together and at least one printed circuit card stack mounted on said base, said at least one card stack comprising: a plurality of poles selectively electrically connected to said conductor plates; at least one mother board, each said mother board being supported by two adjacent ones of said poles; a plurality of Input/Output connectors fixed on each said mother board; and a plurality of cards held at their peripheries by corresponding ones of said Input/Ouput connectors; said poles comprising both mechanical means for supporting each said mother board and electrical means for supplying electrical power to each said mother board.
Claim 3
Dependent Claim
25 words
A construction as set forth in claim 1 further comprising at least one power source selectively connected to said conductor plates by respective lead terminal(s).
Claim 4
Dependent Claim
28 words
A construction as set forth in claim 2, at least one of said lead terminals comprising direct connection of the respective selectively connected power source(s) and conductor plate(s).
Claim 5
Dependent Claim
33 words
A construction as set forth in claim 3 comprising at least two of said card stacks and at least two of said power sources respectively mounted above and below said laminated conductor plates.
Claim 6
Dependent Claim
31 words
A construction as set forth in claim 3 comprising a plurality of said card stacks and a plurality of said power sources respectively mounted below and above said laminated conductor plates.
Claim 7
Dependent Claim
34 words
The construction as set forth in claim 3, comprising at least one of said card stacks, and at least one of said power source(s) mounted on the same side of said laminated conductor plates.
Claim 8
Dependent Claim
24 words
A construction as set forth in claim 3, wherein at least one of said power sources is accommodated in one of said card stacks.
Claim 9
Dependent Claim
24 words
A construction as set forth in claim 1, comprising at least one laminated conductor plate selectively located at the top of said card stack(s).
Claim 10
Dependent Claim
40 words
A construction as set forth in claim 4 comprising at least two of said card stacks arranged on said laminated conductor plates adjacent each other at an angle to allow maximum access to said card stacks for removal and repair.
Claim 11
Dependent Claim
20 words
A construction as set forth in claim 1, wherein at least one of said Input/Output connectors comprises a zero-insertion-force connector.
Claim 12
Dependent Claim
34 words
A contruction as set forth in claim 1, at least one of said poles comprising two or more longitudinal pole parts, at least two of said pole parts being electrically insulated from each other.
Claim 13
Dependent Claim
18 words
A construction as set forth in claim 1, at least one of said card stacks(s) comprising cooling means.
Claim 14
Dependent Claim
40 words
The construction of claim 5, comprising at least two of said card stacks arranged on said laminated conductor plates to be adjacent to each other at an angle to allow maximum access to said card stacks for removal and repair.
Claim 15
Dependent Claim
11 words
The construction of claim 9 wherein said angle is about 45°.
Claim 16
Dependent Claim
11 words
The construction of claim 13, wherein said angle is about 45°.
Claim 17
Dependent Claim
25 words
The construction of claim 1, wherein said connectors are arranged on each said mother board in parallel to each other and parallel to said base.
Claim 18
Dependent Claim
9 words
The construction of claim 12 comprising two mother boards.
Claim 19
Dependent Claim
13 words
The construction of claim 17, said cooling means comprising means for generating airflow.
Claim 20
Dependent Claim
23 words
The construction of claim 17, said airflow generating means comprising means causing airflow between two openings in said at least one card stack.
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) | 1982-06-11 | 1982-12-11 | 1983-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-11 | 1986-12-11 | 1987-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-11 | 1990-12-11 | 1991-06-12 | $7700.00 | Window Closed / Lapsed |