US3770878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed electrical terminal
Assignee: TERMINALS Inc
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Filing: 1971-12-06
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Granted: 1973-11-06
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Expires: 1991-12-06
Abstract
Abstract A hermetically sealed electrical terminal in which one or more highly conductive conductor pins, formed from materials such as copper and copper alloys, are electrically insulated from a supporting member, such as a metallic shell, by means of a molded dielectric sealing member which coacts with the conductor pins and the supporting member to provide a reliable hermetic seal.
Inventors
- 👤 H Dozier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:34
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/40; H01R13/405
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
229 words
A hermetically sealed terminal comprising a support member having a base with at least one annular opening therein defining one end of a generally cylindrical sleeve projecting outwardly from one side of said base, an elongated conductor pin extending centrally through said sleeve and lying in spaced relation thereto, and a one-piece molded dielectric sealing member securing said conductor pin to said supporting member, said sealing member having an intermediate portion extending through said sleeve in sealing engagement with said conductor pin and the inner surface of said sleeve, said conductor pin having a pair of spaced apart opposing shoulder-forming faces positioned near the opposite ends of said sleeve to restrain the intermediate portion of said sealing member against expansion and contraction, said sealing member having integral outer portions extending outwardly beyond said intermediate portion on both sides of said base, said outer portions being of larger diameter than said intermediate portion and surrounding said pin in sealing engagement therewith, one of said outer portions having a relatively thin annular wall portion completely surrounding said sleeve in sealing engagement with the outer surface thereof and in sealing engagement with said base in the area immediately surrounding said sleeve so as to incapsulate said sleeve therein, the other of said outer portions being in sealing engagement with the opposite side of said base in the area surrounding said annular opening.
Claim 2
Dependent Claim
229 words
A hermetically sealed terminal comprising a support member having a base with at least one annular opening therein defining one end of a generally cylindrical sleeve projecting outwardly from one side of said base, an elongated conductor pin extending centrally through said sleeve and lying in spaced relation thereto, and a one-piece molded dielectric sealing member securing said conductor pin to said supporting member, said sealing member having an intermediate portion extending through said sleeve in sealing engagement with said conductor pin and the inner surface of said sleeve, said conductor pin having a pair of spaced apart opposing shoulder-forming faces positioned near the opposite ends of said sleeve to restrain the intermediate portion of said sealing member against expansion and contraction, said sealing member having integral outer portions extending outwardly beyond said intermediate portion on both sides of said base, said outer portions being of larger diameter than said intermediate portion and surrounding said pin in sealing engagement therewith, one of said outer portions having a relatively thin annular wall portion completely surrounding said sleeve in sealing engagement with the outer surface thereof and in sealing engagement with said base in the area immediately surrounding said sleeve so as to incapsulate said sleeve therein, the other of said outer portions being in sealing engagement with the opposite side of said base in the area surrounding said annular opening.
Claim 3
Dependent Claim
66 words
The terminal construction claimed in claim 1 wherein said conductor pin has a central portion of reduced diameter as compared with its opposite end portions, said pair of spaced apart shoulder-forming faces being defined at the junctures of the outer portions of the pin with said reduced diameter central portion, said faces being of no greater diameter than the opposite end portions of said conductor pin.
Claim 4
Dependent Claim
32 words
The terminal construction claimed in claim 2 wherein the central portion of said conductor pin is roughened to enhance the engagement of said sealing member with the central portion of said pin.
Claim 5
Dependent Claim
32 words
The terminal construction claimed in claim 1 wherein said conductor pin has an inwardly tapered portion lying outwardly beyond the shoulder-forming face in closest proximity to the base of said supporting member.
Claim 6
Dependent Claim
32 words
The terminal construction claimed in claim 4 wherein said conductor pin includes a third shoulder-forming face lying within the confines of the outer portion of the sealing member which surrounds said sleeve.
Claim 7
Dependent Claim
26 words
The terminal construction claimed in claim 5 wherein the outer portions of said sealing member terminate at their outermost ends in integral collars surrounding said pin.
Claim 8
Dependent Claim
52 words
The terminal construction claimed in claim 1 wherein said supporting member has a plurality of sleeves projecting outwardly from one side of said base, wherein a conductor pin extends centrally through each of said sleeves, and wherein said one-Piece sealing member has intermediate and outer portions associated with each of said sleeves.
Claim 9
Dependent Claim
41 words
The terminal construction claimed in claim 7 wherein the outer portions of said sealing member which completely surround said sleeves in sealing engagement with the outer surfaces thereof are interconnected by a mold ring portion in sealing engagement with said base.
Claim 10
Dependent Claim
39 words
The terminal construction claimed in claim 8 wherein said relatively thin annular wall portions of said sealing member are also interconnected by an integral portion in sealing engagement with said base and spaced inwardly from said mold ring portion.
Claim 11
Dependent Claim
54 words
The terminal construction claimed in claim 7 wherein the base of said supporting member terminates outwardly in an annular wall surrounding said sleeves, and wherein the relatively thin annular wall portions of said sealing member which surround the outer surfaces of said sleeves are free from contact with the annular wall of said base.
Claim 12
Dependent Claim
14 words
The terminal construction claimed in claim 1 wherein said sealing member is essentially rigid.
Claim 13
Dependent Claim
18 words
The terminal construction claimed in claim 11 wherein said sealing member is composed of an epoxy molding compound.
Claim 14
Dependent Claim
26 words
The terminal construction claimed in claim 1 wherein said sealing member has a coefficient of expansion compatible with the coefficient of expansion of said terminal pin.
Claim 15
Dependent Claim
15 words
The terminal construction claimed in claim 13 wherein said terminal pin is formed from copper.
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |