Patent US3872237A successfully refreshed from Google Patents.
US3872237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint for coaxial cable end
Assignee: International Standard Electric Corp
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Filing: 1974-04-03
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Granted: 1975-03-18
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Expires: 1994-04-03
Abstract
Abstract A joint between coaxial cable ends includes an outer tubular shell in two symmetrical halves having a wider diameter midsection and narrower diameter ends. Outer sleeves are placed around each shell end over the outer coaxial conductors and reinforcing sleeves are disposed over dielectric spacers within the outer conductors. An inner sleeve is crimped over the two inner conductor ends and a section of dielectric spacer is positioned around the inner sleeve. The outer tubular shell portions are placed around the inner sleeve and spacer with the narrow portions over the reinforcing sleeves and outer conductors. The outer sleeves are crimped over the narrow shell ends to lock them in place. Characteristic impedance across the joint is maintained by a proper sizing ratio between the outer diameter of the inner sleeve and inner diameter of the midsection of the shell.
Inventors
- 👤 John Richard Eyre
- 👤 Kenneth Richard Way
- 👤 David Neil Kielty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:06
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/04; H01P1/045; H02; H02G; H02G15/00; H02G15/08; H02G15/085
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
218 words
A jointing arrangement for a coaxial cable core comprising a pair of cable ends including a pair of adjacent inner conductors, dielectric spacers surrounding said inner conductors at a distance from said ends, a pair of outer coaxial conductors around said spacers, an inner metal sleeve about the ends of said inner conductors, a dielectric sleeve about said inner sleeve, a pair of reinforcing metallic sleeves around respective said dielectric spacers adjacent each end, said outer coaxial conductors surrounding said reinforcing sleeves, a plurality of like outer metallic tubular shells positioned to form a tubular enclosure about the adjacent inner conductors and inner sleeve, said tubular shell enclosure having a larger diameter midsection spaced from said dielectric sleeve and having narrower diameter outer ends, said outer ends of said enclosure encircling the respective ends of said outer coaxial conductors over said reinforcing sleeves, and a pair of outer metallic sleeves surrounding respective said outer enclosure ends, said outer sleeves being crimped to lock the tubular shell enclosure in position relative to said inner and outer conductors, the ratio of the inner diameter of said midsection of said tubular enclosure surrounding said inner conductors and inner sleeve to the outer diameter of said inner sleeve being selected to maintain the characteristic impedance of said inner and outer coaxial conductors.
Claim 2
Dependent Claim
218 words
A jointing arrangement for a coaxial cable core comprising a pair of cable ends including a pair of adjacent inner conductors, dielectric spacers surrounding said inner conductors at a distance from said ends, a pair of outer coaxial conductors around said spacers, an inner metal sleeve about the ends of said inner conductors, a dielectric sleeve about said inner sleeve, a pair of reinforcing metallic sleeves around respective said dielectric spacers adjacent each end, said outer coaxial conductors surrounding said reinforcing sleeves, a plurality of like outer metallic tubular shells positioned to form a tubular enclosure about the adjacent inner conductors and inner sleeve, said tubular shell enclosure having a larger diameter midsection spaced from said dielectric sleeve and having narrower diameter outer ends, said outer ends of said enclosure encircling the respective ends of said outer coaxial conductors over said reinforcing sleeves, and a pair of outer metallic sleeves surrounding respective said outer enclosure ends, said outer sleeves being crimped to lock the tubular shell enclosure in position relative to said inner and outer conductors, the ratio of the inner diameter of said midsection of said tubular enclosure surrounding said inner conductors and inner sleeve to the outer diameter of said inner sleeve being selected to maintain the characteristic impedance of said inner and outer coaxial conductors.
Claim 3
Dependent Claim
16 words
The arrangement of claim 1 wherein two symmetrical shells each form half of the tubular enclosure.
Claim 4
Dependent Claim
30 words
The arrangement of claim 2 wherein said two shells are identical and symmetrical around a plane parallel to and passing through the axis of a straight piece of coaxial core.
Claim 5
Dependent Claim
15 words
The arrangement of claim 3 wherein said inner sleeve is crimped over said inner conductors.
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) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |