US4441780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plug and receptacle electrical connector
Assignee: Automation Industries Inc
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Filing: 1982-09-30
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Granted: 1984-04-10
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Expires: 2002-09-30
Abstract
Abstract The plug of a plug and receptacle connector has a hollow cylindrical shell of such internal diameter as to permit its receipt onto and over a cylindrical receptacle shell during mating. A groove formed circumferentially about the inner wall of the plug includes a pair of intertwined continuous helically wound springs secured within the groove which wipes along the external wall of the receptacle as it is fitted within the plug. One of the wire springs has a cross-sectional dimension less than that of the other. At crossover points of the springs, they are bonded to one another. When received within the internal groove of the plug part, the large diameter helically wound part of the spring means is secured to the inner wall of the groove by use of a conductive material.
Inventors
- 👤 Gerald E. Walters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:56
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/0015; H05K9/0016; H01; H01R; H01R13/00; H01R13/648; H01R13/658; H01R13/6581; H01R13/6582; H01R13/6583; H01R13/02; H01R13/15; H01R13/187
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
100 words
An electromagnetic energy shielding means for receipt within a groove on the inner wall of a plug connector part and which contacts a receptacle connector part when the plug and receptacle connector parts mate, comprising: a first helically wound coil spring arranged in a continuous closed path; a second helically wound coil spring arranged in a continuous closed path, said second coil spring being interleaved with the first coil spring; means conductively bonding crossover points of the first and second coil springs; and means for conductively securing one of said spring coils to plug connector part walls defining the groove.
Claim 2
Dependent Claim
100 words
An electromagnetic energy shielding means for receipt within a groove on the inner wall of a plug connector part and which contacts a receptacle connector part when the plug and receptacle connector parts mate, comprising: a first helically wound coil spring arranged in a continuous closed path; a second helically wound coil spring arranged in a continuous closed path, said second coil spring being interleaved with the first coil spring; means conductively bonding crossover points of the first and second coil springs; and means for conductively securing one of said spring coils to plug connector part walls defining the groove.
Claim 3
Dependent Claim
22 words
An electromagnetic energy shielding means as in claim 1, in which the first and second springs are helically wound in opposite directions.
Claim 4
Dependent Claim
28 words
An electromagnetic energy shielding means as in claim 1, in which the means for conductively securing the spring to the plug part groove wall includes conductive epoxy adhesive.
Claim 5
Dependent Claim
28 words
An electromagnetic energy shielding means as in claim 1, in which the first coil spring has a maximum transverse dimension greater than that of the second coil spring.
Claim 6
Dependent Claim
29 words
An electromagnetic energy shielding means as in claim 4, in which the first and second coil springs are arranged in a generally toroidal path about a common circular axis.
Claim 7
Dependent Claim
32 words
An electromagnetic energy shielding means as in either of claims 1 or 2, in which the transverse cross-sectional dimensions of the first and second coil springs are less than the groove width.
Claim 8
Dependent Claim
26 words
An electromagnetic energy shielding means as in claim 1, in which the first and second coil springs are constructed of spring wire having a rectangular cross-section.
Claim 9
Dependent Claim
27 words
An electromagnetic energy shielding means as in either of claims 1 or 7, in which the first and second coil springs are constructed of a beryllium alloy.
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) | 1987-04-10 | 1987-10-10 | 1988-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-10 | 1991-10-10 | 1992-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-10 | 1995-10-10 | 1996-04-10 | $7700.00 | Window Closed / Lapsed |