US4993964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connector environmental sealing plug
Assignee: Lockheed Martin Corp
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Filing: 1989-04-18
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Granted: 1991-02-19
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Expires: 2009-04-18
Abstract
Abstract A sealing plug for a multi-contact electrical connector which precludes the necessity for installation of separate end-seal plugs and spare pin contacts to effect the environmental sealing of non-used pin contact cavities in the connector.
Inventors
- 👤 Richard O. Trummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:10
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/52; H01R13/5205; H01R13/5208; H01R13/44; H01R13/443; H01R13/5213
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
144 words
An environmental sealing plug for an electrical connector including a connector plug portion having a shell containing a dielectric insert having pin contact receiving cavities, a rubber gasket mounted in the shell at the forward end of the insert, apertures in said gasket aligned with said insert cavities, conical projections provided on said gasket surrounding said apertures, and a rear elastomeric grommet having annular sealing ribs mounted in said shell at the opposite end of said insert, the sealing plug comprising, a dielectric plug mounted in said pin contact receiving cavity, said plug having a shank portion extending through said grommet, and a pin portion extending a short distance outwardly of the gasket through said apertures, to thereby maintain the rigidity of the conical projection on the gasket to optimize the seal between the mated plug portion and a receptacle portion of the connector.
Claim 2
Dependent Claim
144 words
An environmental sealing plug for an electrical connector including a connector plug portion having a shell containing a dielectric insert having pin contact receiving cavities, a rubber gasket mounted in the shell at the forward end of the insert, apertures in said gasket aligned with said insert cavities, conical projections provided on said gasket surrounding said apertures, and a rear elastomeric grommet having annular sealing ribs mounted in said shell at the opposite end of said insert, the sealing plug comprising, a dielectric plug mounted in said pin contact receiving cavity, said plug having a shank portion extending through said grommet, and a pin portion extending a short distance outwardly of the gasket through said apertures, to thereby maintain the rigidity of the conical projection on the gasket to optimize the seal between the mated plug portion and a receptacle portion of the connector.
Claim 3
Dependent Claim
33 words
An environmental sealing plug according to claim 1, wherein the annular ribs on the grommet engage the shank portion of the sealing plug, to thereby seal the rear plug portion of the connector.
Claim 4
Dependent Claim
16 words
An environmental sealing plug according to claim 1, wherein the sealing plug is made of plastic.
Claim 5
Dependent Claim
21 words
An environmental sealing plug according to claim 1, wherein the sealing plug has the same configuration as a spare pin contact.
Claim 6
Dependent Claim
29 words
An environmental sealing plug according to claim 4, wherein spring tines are mounted in said insert cavity and engage said sealing plug for retaining said plug in said cavity.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-18 | 1994-08-20 | 1995-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-18 | 1998-08-20 | 1999-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-18 | 2002-08-20 | 2003-02-19 | $7700.00 | Window Closed / Lapsed |