US4381878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact spring for low resistance connection of a circuit board to a grounded subassembly carrier
Assignee: Siemens AG
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Filing: 1980-09-05
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Granted: 1983-05-03
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Expires: 2000-09-05
Abstract
Abstract A contact spring contained in a conforming recess in a guide channel has a U-shaped portion with projecting side tabs embracing the edge of a circuit board. The side tabs rest against conductors on the circuit board which carry circuit board potentials and establish a good electrical connection between the conductors and the contact spring. The contact spring also grips the circuit board. A spring leg on the contact strip goes through an opening in the guide channel and engages the subassembly carrier.
Inventors
- 👤 Ernst-Friedrich Lechner
- 👤 Otto Meusel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:24
CPC Classifications
H; H01; H01R; H01R12/00; H01R12/70; H01R12/71; H01R12/72; H01R12/721; H05; H05K; H05K7/00; H05K7/14; H05K7/1417; H05K7/1418
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
180 words
A connector for removably mounting a circuit board on a subassembly carrier, the circuit board carrying electronic components and comprising at least one conductor run, the subassembly carrier comprising a conducting surface at ground potential, the connector providing a low resistance connection between the conductor run and the conducting surface of the carrier, the connector comprising: a guide member comprising a channel for receiving the circuit board, a recess in the channel, a base wider than the channel, and an opening extending from the channel to the base, the opening wider than the channel; a U-shaped contact conformably fitted in the recess, the contact comprising resilient side portions adapted to positively engage the circuit board on both sides and to make a highly conductive electrical connection to the conductor run; and a spring leg on the contact, the spring leg adapted for passage through the opening in the guide member, the spring leg wider than the channel and comprising a surface adapted to conformably engage the conducting surface of the subassembly carrier to make a highly conductive electrical connection thereto.
Claim 2
Dependent Claim
180 words
A connector for removably mounting a circuit board on a subassembly carrier, the circuit board carrying electronic components and comprising at least one conductor run, the subassembly carrier comprising a conducting surface at ground potential, the connector providing a low resistance connection between the conductor run and the conducting surface of the carrier, the connector comprising: a guide member comprising a channel for receiving the circuit board, a recess in the channel, a base wider than the channel, and an opening extending from the channel to the base, the opening wider than the channel; a U-shaped contact conformably fitted in the recess, the contact comprising resilient side portions adapted to positively engage the circuit board on both sides and to make a highly conductive electrical connection to the conductor run; and a spring leg on the contact, the spring leg adapted for passage through the opening in the guide member, the spring leg wider than the channel and comprising a surface adapted to conformably engage the conducting surface of the subassembly carrier to make a highly conductive electrical connection thereto.
Claim 3
Dependent Claim
50 words
The conductor of claim 1 in which the subassembly carrier has a detent portion and the spring leg has an end which is reversed to removably engage the detent portion, the spring leg preventing motion of the guide member away from the subcarrier assembly when engaged with the detent portion.
Claim 4
Dependent Claim
45 words
The connector of claim 2 and further comprising: cooperating post and hole means located adjacent to the opening in the guide member and to the detent portion of the subcarrier assembly for preventing motion of the base of the guide member along the subcarrier assembly.
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) | 1986-05-02 | 1986-11-01 | 1987-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-02 | 1990-11-01 | 1991-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-02 | 1994-11-01 | 1995-05-03 | $7700.00 | Window Closed / Lapsed |