Patent US3994483A successfully refreshed from Google Patents.
US3994483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring for maintaining in place an electric component and for ensuring its electric contact
Assignee: Ebauches SA
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Filing: 1975-03-10
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Granted: 1976-11-30
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Expires: 1995-03-10
Abstract
Abstract A spring having three juxtaposed elastic blades connected to each other only at each end by two transversal portions. The central blade is cambered in a first direction and the two lateral or outside blades are cambered in an opposite second direction. The width of each blade diminishes to a minimum half-way between the middle of each end to equally distribute stresses applied to the spring, so that no lateral displacement of the spring will take place when it is compressed. The middle portion of the central blade has a protrusion adapted to make contact with an electrical component such as a battery. The two lateral blades each have a downwardly extending tongue at their center portion to bear against a bearing element, so there is electrical contact between the battery and the bearing element via the spring.
Inventors
- 👤 Norberto Perucchi
- 👤 Michel Selot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:56
CPC Classifications
G; G04; G04C; G04C10/00; H; H01; H01M; H01M50/00; H01M50/20; H01M50/204; H01M50/207; H01M50/216; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
167 words
Spring for maintaining in place an electric component, especially a source of current, and for ensuring its electric contact, comprising: three elastic blades which are juxtaposed, connected to each other at their ends by two transversal portions, said blades including stress distributing means to prevent lateral displacement of said spring during compression, said stress distributing means including the width of each blade diminishing from each of its ends for reaching a minimum width situated substantially at half a distance between each end and its middle portion, then increasing in width up to its middle portion, the central blade being cambered in a direction while the two lateral blades are cambered in the opposite direction, the whole in such a way that, this spring being interposed between a bearing element and the electric component, it bears by the top of its two lateral blades on one of the said elements -- electric component and bearing element-- and by the top of its central blade on the other one.
Claim 2
Dependent Claim
167 words
Spring for maintaining in place an electric component, especially a source of current, and for ensuring its electric contact, comprising: three elastic blades which are juxtaposed, connected to each other at their ends by two transversal portions, said blades including stress distributing means to prevent lateral displacement of said spring during compression, said stress distributing means including the width of each blade diminishing from each of its ends for reaching a minimum width situated substantially at half a distance between each end and its middle portion, then increasing in width up to its middle portion, the central blade being cambered in a direction while the two lateral blades are cambered in the opposite direction, the whole in such a way that, this spring being interposed between a bearing element and the electric component, it bears by the top of its two lateral blades on one of the said elements -- electric component and bearing element-- and by the top of its central blade on the other one.
Claim 3
Dependent Claim
139 words
Spring for maintaining in place an electric component, especially a source of current, and for ensuring its electric contact, comprising: three elastic blades which are juxtaposed, connected to each other at their ends by two transversal portions, said blades including stress distributing means to prevent lateral displacement of said spring during compression, the central blade being cambered in a direction while the two lateral blades are cambered in the opposite direction, the lateral blades are each provided, at their middle portion, with a bent tongue, the whole in such a way that, this spring being interposed between a bearing element and the electric component, it bears by the bent tongues of its two lateral blades on one of the said elements -- electric component and bearing element-- and by the top of its central blade on the other one.
Claim 4
Dependent Claim
139 words
Spring for maintaining in place an electric component, especially a source of current, and for ensuring its electric contact, comprising: three elastic blades which are juxtaposed, connected to each other at their ends by two transversal portions, said blades including stress distributing means to prevent lateral displacement of said spring during compression, the central blade being cambered in a direction while the two lateral blades are cambered in the opposite direction, the lateral blades are each provided, at their middle portion, with a bent tongue, the whole in such a way that, this spring being interposed between a bearing element and the electric component, it bears by the bent tongues of its two lateral blades on one of the said elements -- electric component and bearing element-- and by the top of its central blade on the other one.
Claim 5
Dependent Claim
34 words
Spring as claimed in claim 2, in which said tongues are arranged in such a way as to permit their securing to the element -- electric component or bearing element-- on which they bear.
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) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |